monetdb-java: src/main/java/org/monetdb/jdbc/MonetResultSetMetaData.java annotate

annotate src/main/java/org/monetdb/jdbc/MonetResultSetMetaData.java @ 726:89bbd04036cd

For type inet we always get 0 as length from the server. As inet has a maximum display length of 18 we should return that more useful value instead.

author	Martin van Dinther <martin.van.dinther@monetdbsolutions.com>
date	Thu, 26 Jan 2023 19:03:14 +0100 (2023-01-26)
parents	224d73363dc9
children	3dd0d43014e8

rev	line source
713 c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	1 /*
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	2 * This Source Code Form is subject to the terms of the Mozilla Public
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	3 * License, v. 2.0. If a copy of the MPL was not distributed with this
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	4 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	5 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	6 * Copyright 1997 - July 2008 CWI, August 2008 - 2023 MonetDB B.V.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	7 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	8
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	9 package org.monetdb.jdbc;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	10
714 ad7b08ef7745 Moving static method getClassForType() from MonetResulSet to MonetDriver class which is a much more logical place. Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 713 diff changeset	11 import java.sql.ResultSetMetaData;
713 c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	12 import java.sql.SQLException;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	13 import java.sql.Types;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	14
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	15 /**
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	16 *<pre>
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	17 * A {@link ResultSetMetaData} suitable for the MonetDB database.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	18 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	19 * An object that can be used to get information about the types and
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	20 * properties of the columns in a ResultSet object.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	21 *</pre>
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	22 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	23 * @author Martin van Dinther
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	24 * @version 1.0
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	25 */
718 7138bbc6952e Do not make this class public as it is to be used only within this package. Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 717 diff changeset	26 final class MonetResultSetMetaData
713 c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	27 extends MonetWrapper
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	28 implements ResultSetMetaData
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	29 {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	30 /** The parental Connection object */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	31 private final MonetConnection conn;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	32
717 7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	33 /** The number of columns, it can be zero !! */
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	34 private final int colCount;
713 c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	35
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	36 /** The schema names of the columns in this ResultSet */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	37 private final String[] schemas;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	38 /** The table names of the columns in this ResultSet */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	39 private final String[] tables;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	40 /** The names of the columns in this ResultSet */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	41 private final String[] columns;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	42 /** The MonetDB type names of the columns in this ResultSet */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	43 private final String[] types;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	44 /** The JDBC SQL type codes of the columns in this ResultSet.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	45 * The content will be derived once from the MonetDB String[] types */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	46 private final int[] JdbcSQLTypes;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	47 /** The lengths of the columns in this ResultSet */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	48 private final int[] lengths;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	49 /** The precisions of the columns in this ResultSet */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	50 private final int[] precisions;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	51 /** The scales of the columns in this ResultSet */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	52 private final int[] scales;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	53
720 99baab703566 Resolve some javac -Xdoclint warnings Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 718 diff changeset	54 /**
99baab703566 Resolve some javac -Xdoclint warnings Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 718 diff changeset	55 * For the methods: isNullable() and isAutoIncrement(), we need to query the server.
713 c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	56 * To do this efficiently we query many columns combined in one SELECT
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	57 * query and cache the results in following arrays.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	58 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	59 private final int array_size;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	60 /** Whether info for a column is already queried or not */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	61 private final boolean[] _is_queried;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	62 /** Whether info for a column is already fetched or not */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	63 private final boolean[] _is_fetched;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	64 /** The nullability of the columns in this ResultSet */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	65 private final int[] _isNullable;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	66 /** The auto increment property of the columns in this ResultSet */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	67 private final boolean[] _isAutoincrement;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	68 /** an upper bound value to calculate the range of columns to query */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	69 private int nextUpperbound;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	70
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	71
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	72 /**
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	73 * Main constructor backed by the given connection and header.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	74 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	75 * @param connection the parent connection
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	76 * @param header a ResultSetResponse containing the metadata
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	77 * @throws IllegalArgumentException if called with null for one of the arguments
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	78 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	79 MonetResultSetMetaData(
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	80 final MonetConnection connection,
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	81 final MonetConnection.ResultSetResponse header)
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	82 throws IllegalArgumentException
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	83 {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	84 if (connection == null) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	85 throw new IllegalArgumentException("Connection may not be null!");
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	86 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	87 if (header == null) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	88 throw new IllegalArgumentException("Header may not be null!");
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	89 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	90 this.conn = connection;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	91 schemas = header.getSchemaNames();
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	92 tables = header.getTableNames();
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	93 columns = header.getNames();
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	94 lengths = header.getColumnLengths();
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	95 types = header.getTypes();
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	96 precisions = header.getColumnPrecisions();
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	97 scales = header.getColumnScales();
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	98
717 7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	99 colCount = columns.length;
713 c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	100 if (columns.length != tables.length \|\| columns.length != types.length ) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	101 throw new IllegalArgumentException("Inconsistent Header metadata");
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	102 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	103
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	104 // derive the JDBC SQL type codes from the types[] names once
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	105 JdbcSQLTypes = new int[types.length];
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	106 for (int i = 0; i < types.length; i++) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	107 int javaSQLtype = MonetDriver.getJdbcSQLType(types[i]);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	108 if (javaSQLtype == Types.CLOB) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	109 if (connection.mapClobAsVarChar())
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	110 javaSQLtype = Types.VARCHAR;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	111 } else
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	112 if (javaSQLtype == Types.BLOB) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	113 if (connection.mapBlobAsVarBinary())
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	114 javaSQLtype = Types.VARBINARY;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	115 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	116 JdbcSQLTypes[i] = javaSQLtype;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	117 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	118
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	119 // initialize structures for storing columns info on nullability and autoincrement
717 7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	120 array_size = colCount + 1; // add 1 as in JDBC columns start from 1 (array from 0).
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	121 _is_queried = new boolean[array_size];
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	122 _is_fetched = new boolean[array_size];
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	123 _isNullable = new int[array_size];
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	124 _isAutoincrement = new boolean[array_size];
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	125 nextUpperbound = array_size;
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	126 }
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	127
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	128 /**
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	129 * Alternative constructor backed by the given connection and metadata arrays.
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	130 * It is used by MonetPreparedStatement.
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	131 *
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	132 * @param connection the parent connection
720 99baab703566 Resolve some javac -Xdoclint warnings Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 718 diff changeset	133 * @param colcount the number of result columns, it can be zero !!
717 7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	134 * @param schemas the schema names
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	135 * @param tables the table names
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	136 * @param columns the column names
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	137 * @param types the MonetDB type names
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	138 * @param jdbcTypes the JDBC SQL type codes
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	139 * @param lengths the maximum display length for each column
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	140 * @param precisions the precision for each column
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	141 * @param scales the scale for each column
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	142 * @throws IllegalArgumentException if called with null for one of the arguments
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	143 */
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	144 MonetResultSetMetaData(
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	145 final MonetConnection connection,
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	146 final int colcount,
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	147 final String[] schemas,
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	148 final String[] tables,
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	149 final String[] columns,
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	150 final String[] types,
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	151 final int[] jdbcTypes,
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	152 final int[] lengths,
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	153 final int[] precisions,
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	154 final int[] scales)
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	155 throws IllegalArgumentException
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	156 {
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	157 if (connection == null) {
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	158 throw new IllegalArgumentException("Connection may not be null!");
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	159 }
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	160 if (schemas == null) {
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	161 throw new IllegalArgumentException("Schemas may not be null!");
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	162 }
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	163 if (tables == null) {
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	164 throw new IllegalArgumentException("Tables may not be null!");
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	165 }
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	166 if (columns == null) {
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	167 throw new IllegalArgumentException("Columns may not be null!");
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	168 }
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	169 if (types == null) {
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	170 throw new IllegalArgumentException("MonetDB Types may not be null!");
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	171 }
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	172 if (jdbcTypes == null) {
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	173 throw new IllegalArgumentException("JDBC Types may not be null!");
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	174 }
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	175 if (lengths == null) {
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	176 throw new IllegalArgumentException("Lengths may not be null!");
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	177 }
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	178 if (precisions == null) {
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	179 throw new IllegalArgumentException("Precisions may not be null!");
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	180 }
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	181 if (scales == null) {
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	182 throw new IllegalArgumentException("Scales may not be null!");
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	183 }
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	184 if (columns.length != tables.length \|\| columns.length != types.length ) {
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	185 throw new IllegalArgumentException("Inconsistent Header metadata");
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	186 }
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	187 this.conn = connection;
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	188 this.colCount = colcount;
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	189 this.schemas = schemas;
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	190 this.tables = tables;
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	191 this.columns = columns;
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	192 this.lengths = lengths;
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	193 this.types = types;
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	194 this.JdbcSQLTypes = jdbcTypes;
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	195 this.precisions = precisions;
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	196 this.scales = scales;
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	197
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	198 // initialize structures for storing columns info on nullability and autoincrement
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	199 array_size = colCount + 1; // add 1 as in JDBC columns start from 1 (array from 0).
713 c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	200 _is_queried = new boolean[array_size];
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	201 _is_fetched = new boolean[array_size];
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	202 _isNullable = new int[array_size];
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	203 _isAutoincrement = new boolean[array_size];
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	204 nextUpperbound = array_size;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	205 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	206
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	207 /**
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	208 * Returns the number of columns in this ResultSet object.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	209 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	210 * @return the number of columns
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	211 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	212 @Override
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	213 public int getColumnCount() {
717 7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	214 // for debug: System.out.println("In rsmd.getColumnCount() = " + colCount + ". this rsmd object = " + this.toString());
7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	215 return colCount;
713 c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	216 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	217
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	218 /**
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	219 * Indicates whether the designated column is automatically numbered.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	220 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	221 * This method is currently very expensive for BIGINT,
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	222 * INTEGER, SMALLINT and TINYINT result column types
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	223 * as it needs to retrieve the information from the
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	224 * database using an SQL meta data query.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	225 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	226 * @param column the first column is 1, the second is 2, ...
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	227 * @return true if so; false otherwise
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	228 * @throws SQLException if there is no such column or a database access error occurs
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	229 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	230 @Override
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	231 public boolean isAutoIncrement(final int column) throws SQLException {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	232 // only few integer types can be auto incrementable in MonetDB
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	233 // see: https://www.monetdb.org/Documentation/SQLReference/DataTypes/SerialDatatypes
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	234 switch (getColumnType(column)) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	235 case Types.BIGINT:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	236 case Types.INTEGER:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	237 case Types.SMALLINT:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	238 case Types.TINYINT:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	239 try {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	240 if (_is_fetched[column] != true) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	241 fetchColumnInfo(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	242 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	243 return _isAutoincrement[column];
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	244 } catch (IndexOutOfBoundsException e) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	245 throw MonetResultSet.newSQLInvalidColumnIndexException(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	246 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	247 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	248
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	249 return false;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	250 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	251
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	252 /**
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	253 * Indicates whether a column's case matters.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	254 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	255 * @param column the first column is 1, the second is 2, ...
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	256 * @return true for all character string columns else false
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	257 * @throws SQLException if there is no such column
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	258 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	259 @Override
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	260 public boolean isCaseSensitive(final int column) throws SQLException {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	261 switch (getColumnType(column)) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	262 case Types.CHAR:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	263 case Types.LONGVARCHAR: // MonetDB doesn't use type LONGVARCHAR, it's here for completeness
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	264 case Types.CLOB:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	265 return true;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	266 case Types.VARCHAR:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	267 final String monettype = getColumnTypeName(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	268 if (monettype != null && monettype.length() == 4) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	269 // data of type inet or uuid is not case sensitive
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	270 if ("inet".equals(monettype)
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	271 \|\| "uuid".equals(monettype))
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	272 return false;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	273 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	274 return true;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	275 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	276
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	277 return false;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	278 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	279
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	280 /**
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	281 * Indicates whether the designated column can be used in a
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	282 * where clause.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	283 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	284 * Returning true for all here, even for CLOB, BLOB.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	285 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	286 * @param column the first column is 1, the second is 2, ...
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	287 * @return true
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	288 * @throws SQLException if there is no such column
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	289 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	290 @Override
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	291 public boolean isSearchable(final int column) throws SQLException {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	292 checkColumnIndexValidity(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	293 return true;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	294 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	295
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	296 /**
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	297 * Indicates whether the designated column is a cash value.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	298 * From the MonetDB database perspective it is by definition
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	299 * unknown whether the value is a currency, because there are
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	300 * no currency datatypes such as MONEY. With this knowledge
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	301 * we can always return false here.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	302 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	303 * @param column the first column is 1, the second is 2, ...
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	304 * @return false
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	305 * @throws SQLException if there is no such column
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	306 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	307 @Override
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	308 public boolean isCurrency(final int column) throws SQLException {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	309 checkColumnIndexValidity(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	310 return false;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	311 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	312
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	313 /**
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	314 * Indicates the nullability of values in the designated column.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	315 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	316 * This method is currently very expensive as it needs to
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	317 * retrieve the information from the database using an SQL
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	318 * meta data query.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	319 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	320 * @param column the first column is 1, the second is 2, ...
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	321 * @return the nullability status of the given column; one of
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	322 * columnNoNulls, columnNullable or columnNullableUnknown
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	323 * @throws SQLException if there is no such column or a database access error occurs
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	324 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	325 @Override
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	326 public int isNullable(final int column) throws SQLException {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	327 checkColumnIndexValidity(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	328 try {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	329 if (_is_fetched[column] != true) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	330 fetchColumnInfo(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	331 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	332 return _isNullable[column];
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	333 } catch (IndexOutOfBoundsException e) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	334 throw MonetResultSet.newSQLInvalidColumnIndexException(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	335 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	336 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	337
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	338 /**
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	339 * Indicates whether values in the designated column are signed
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	340 * numbers.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	341 * Within MonetDB all numeric types (except oid and ptr) are signed.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	342 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	343 * @param column the first column is 1, the second is 2, ...
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	344 * @return true if so; false otherwise
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	345 * @throws SQLException if there is no such column
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	346 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	347 @Override
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	348 public boolean isSigned(final int column) throws SQLException {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	349 // we can hardcode this, based on the colum type
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	350 switch (getColumnType(column)) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	351 case Types.TINYINT:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	352 case Types.SMALLINT:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	353 case Types.INTEGER:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	354 case Types.REAL:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	355 case Types.FLOAT:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	356 case Types.DOUBLE:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	357 case Types.DECIMAL:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	358 case Types.NUMERIC:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	359 return true;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	360 case Types.BIGINT:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	361 final String monettype = getColumnTypeName(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	362 if (monettype != null && monettype.length() == 3) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	363 // data of type oid or ptr is not signed
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	364 if ("oid".equals(monettype)
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	365 \|\| "ptr".equals(monettype))
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	366 return false;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	367 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	368 return true;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	369 // All other types should return false
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	370 // case Types.BOOLEAN:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	371 // case Types.DATE: // can year be negative?
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	372 // case Types.TIME: // can time be negative?
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	373 // case Types.TIME_WITH_TIMEZONE:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	374 // case Types.TIMESTAMP: // can year be negative?
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	375 // case Types.TIMESTAMP_WITH_TIMEZONE:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	376 default:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	377 return false;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	378 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	379 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	380
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	381 /**
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	382 * Indicates the designated column's normal maximum width in
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	383 * characters.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	384 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	385 * @param column the first column is 1, the second is 2, ...
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	386 * @return the normal maximum number of characters allowed as the
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	387 * width of the designated column
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	388 * @throws SQLException if there is no such column
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	389 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	390 @Override
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	391 public int getColumnDisplaySize(final int column) throws SQLException {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	392 checkColumnIndexValidity(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	393 if (lengths != null) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	394 try {
726 89bbd04036cd For type inet we always get 0 as length from the server. As inet has a maximum display length of 18 we should return that more useful value instead. Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 725 diff changeset	395 int len = lengths[column - 1];
89bbd04036cd For type inet we always get 0 as length from the server. As inet has a maximum display length of 18 we should return that more useful value instead. Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 725 diff changeset	396 if (len == 0) {
89bbd04036cd For type inet we always get 0 as length from the server. As inet has a maximum display length of 18 we should return that more useful value instead. Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 725 diff changeset	397 final String monettype = getColumnTypeName(column);
89bbd04036cd For type inet we always get 0 as length from the server. As inet has a maximum display length of 18 we should return that more useful value instead. Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 725 diff changeset	398 // in case of inet it always has 0 as length. we need to correct it.
89bbd04036cd For type inet we always get 0 as length from the server. As inet has a maximum display length of 18 we should return that more useful value instead. Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 725 diff changeset	399 if (monettype != null && "inet".equals(monettype)) {
89bbd04036cd For type inet we always get 0 as length from the server. As inet has a maximum display length of 18 we should return that more useful value instead. Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 725 diff changeset	400 len = 18; // 128.127.126.125/24
89bbd04036cd For type inet we always get 0 as length from the server. As inet has a maximum display length of 18 we should return that more useful value instead. Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 725 diff changeset	401 }
89bbd04036cd For type inet we always get 0 as length from the server. As inet has a maximum display length of 18 we should return that more useful value instead. Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 725 diff changeset	402 }
89bbd04036cd For type inet we always get 0 as length from the server. As inet has a maximum display length of 18 we should return that more useful value instead. Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 725 diff changeset	403 return len;
713 c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	404 } catch (IndexOutOfBoundsException e) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	405 throw MonetResultSet.newSQLInvalidColumnIndexException(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	406 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	407 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	408 return 1;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	409 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	410
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	411 /**
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	412 * Gets the designated column's suggested title for use in
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	413 * printouts and displays. The suggested title is usually
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	414 * specified by the SQL AS clause. If a SQL AS is not specified,
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	415 * the value returned from getColumnLabel will be the same as
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	416 * the value returned by the getColumnName method.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	417 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	418 * @param column the first column is 1, the second is 2, ...
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	419 * @return the suggested column title
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	420 * @throws SQLException if there is no such column
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	421 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	422 @Override
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	423 public String getColumnLabel(final int column) throws SQLException {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	424 return getColumnName(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	425 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	426
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	427 /**
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	428 * Gets the designated column's name
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	429 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	430 * @param column the first column is 1, the second is 2, ...
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	431 * @return the column name
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	432 * @throws SQLException if there is no such column
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	433 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	434 @Override
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	435 public String getColumnName(final int column) throws SQLException {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	436 checkColumnIndexValidity(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	437 try {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	438 return columns[column - 1];
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	439 } catch (IndexOutOfBoundsException e) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	440 throw MonetResultSet.newSQLInvalidColumnIndexException(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	441 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	442 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	443
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	444 /**
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	445 * Gets the designated column's table's catalog name.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	446 * MonetDB does not support the catalog naming concept as in: catalog.schema.table naming scheme
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	447 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	448 * @param column the first column is 1, the second is 2, ...
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	449 * @return null or the name of the catalog for the table in which the given
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	450 * column appears or "" if not applicable
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	451 * @throws SQLException if there is no such column
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	452 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	453 @Override
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	454 public String getCatalogName(final int column) throws SQLException {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	455 checkColumnIndexValidity(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	456 return null; // MonetDB does NOT support catalog qualifiers
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	457
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	458 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	459
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	460 /**
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	461 * Get the designated column's schema name.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	462 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	463 * @param column the first column is 1, the second is 2, ...
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	464 * @return schema name or "" if not applicable
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	465 * @throws SQLException if there is no such column
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	466 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	467 @Override
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	468 public String getSchemaName(final int column) throws SQLException {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	469 checkColumnIndexValidity(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	470 if (schemas != null) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	471 try {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	472 return schemas[column - 1];
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	473 } catch (IndexOutOfBoundsException e) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	474 throw MonetResultSet.newSQLInvalidColumnIndexException(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	475 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	476 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	477 return "";
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	478 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	479
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	480 /**
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	481 * Gets the designated column's table name.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	482 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	483 * @param column the first column is 1, the second is 2, ...
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	484 * @return table name or "" if not applicable
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	485 * @throws SQLException if there is no such column
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	486 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	487 @Override
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	488 public String getTableName(final int column) throws SQLException {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	489 checkColumnIndexValidity(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	490 if (tables != null) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	491 try {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	492 return tables[column - 1];
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	493 } catch (IndexOutOfBoundsException e) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	494 throw MonetResultSet.newSQLInvalidColumnIndexException(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	495 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	496 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	497 return "";
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	498 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	499
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	500 /**
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	501 * Retrieves the designated column's SQL type.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	502 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	503 * @param column the first column is 1, the second is 2, ...
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	504 * @return SQL type from java.sql.Types
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	505 * @throws SQLException if there is no such column
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	506 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	507 @Override
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	508 public int getColumnType(final int column) throws SQLException {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	509 checkColumnIndexValidity(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	510 try {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	511 return JdbcSQLTypes[column - 1];
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	512 } catch (IndexOutOfBoundsException e) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	513 throw MonetResultSet.newSQLInvalidColumnIndexException(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	514 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	515 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	516
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	517 /**
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	518 * Retrieves the designated column's database-specific type name.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	519 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	520 * @param column the first column is 1, the second is 2, ...
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	521 * @return type name used by the database. If the column type is a
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	522 * user-defined type, then a fully-qualified type name is
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	523 * returned.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	524 * @throws SQLException if there is no such column
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	525 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	526 @Override
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	527 public String getColumnTypeName(final int column) throws SQLException {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	528 checkColumnIndexValidity(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	529 try {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	530 final String monettype = types[column - 1];
725 224d73363dc9 Fixed issue when you create a new Statement, call getGeneratedKeys().getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 720 diff changeset	531 if (monettype != null && monettype.endsWith("_interval")) {
713 c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	532 /* convert the interval type names to valid SQL data type names,
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	533 * such that generic applications can use them in create table statements
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	534 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	535 if ("day_interval".equals(monettype))
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	536 return "interval day";
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	537 if ("month_interval".equals(monettype))
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	538 return "interval month";
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	539 if ("sec_interval".equals(monettype))
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	540 return "interval second";
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	541 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	542 return monettype;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	543 } catch (IndexOutOfBoundsException e) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	544 throw MonetResultSet.newSQLInvalidColumnIndexException(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	545 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	546 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	547
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	548 /**
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	549 * Get the designated column's specified column size.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	550 * For numeric data, this is the maximum precision.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	551 * For character data, this is the length in characters.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	552 * For datetime datatypes, this is the length in characters
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	553 * of the String representation (assuming the maximum
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	554 * allowed precision of the fractional seconds component).
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	555 * For binary data, this is the length in bytes.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	556 * For the ROWID datatype, this is the length in bytes.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	557 * 0 is returned for data types where the column size is not applicable.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	558 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	559 * @param column the first column is 1, the second is 2, ...
717 7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	560 * @return maximum precision or length in characters
713 c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	561 * @throws SQLException if there is no such column
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	562 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	563 @Override
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	564 public int getPrecision(final int column) throws SQLException {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	565 switch (getColumnType(column)) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	566 case Types.BIGINT:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	567 return 19;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	568 case Types.INTEGER:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	569 return 10;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	570 case Types.SMALLINT:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	571 return 5;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	572 case Types.TINYINT:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	573 return 3;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	574 case Types.REAL:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	575 return 7;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	576 case Types.FLOAT:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	577 case Types.DOUBLE:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	578 return 15;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	579 case Types.DECIMAL:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	580 case Types.NUMERIC:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	581 // these data types have a variable precision (max precision is 38)
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	582 if (precisions != null) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	583 try {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	584 return precisions[column - 1];
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	585 } catch (IndexOutOfBoundsException e) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	586 throw MonetResultSet.newSQLInvalidColumnIndexException(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	587 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	588 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	589 return 18;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	590 case Types.CHAR:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	591 case Types.VARCHAR:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	592 case Types.LONGVARCHAR: // MonetDB doesn't use type LONGVARCHAR, it's here for completeness
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	593 case Types.CLOB:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	594 // these data types have a variable length
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	595 if (precisions != null) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	596 try {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	597 int prec = precisions[column - 1];
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	598 if (prec <= 0) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	599 // apparently no positive precision or max length could be fetched
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	600 // use columnDisplaySize() value as fallback
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	601 prec = getColumnDisplaySize(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	602 precisions[column - 1] = prec;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	603 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	604 return prec;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	605 } catch (IndexOutOfBoundsException e) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	606 throw MonetResultSet.newSQLInvalidColumnIndexException(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	607 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	608 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	609 // apparently no precisions array is available
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	610 // use columnDisplaySize() value as alternative
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	611 return getColumnDisplaySize(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	612 case Types.BINARY:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	613 case Types.VARBINARY:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	614 case Types.BLOB:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	615 // these data types have a variable length
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	616 if (precisions != null) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	617 try {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	618 int prec = precisions[column - 1];
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	619 if (prec <= 0) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	620 // apparently no positive precision or max length could be fetched
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	621 // use columnDisplaySize() value as fallback
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	622 // It expect number of bytes, not number of hex chars
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	623 prec = (getColumnDisplaySize(column) / 2) +1;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	624 precisions[column - 1] = prec;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	625 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	626 return prec;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	627 } catch (IndexOutOfBoundsException e) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	628 throw MonetResultSet.newSQLInvalidColumnIndexException(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	629 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	630 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	631 // apparently no precisions array is available
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	632 // use columnDisplaySize() value as alternative
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	633 // It expect number of bytes, not number of hex chars
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	634 return (getColumnDisplaySize(column) / 2) +1;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	635 case Types.DATE:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	636 return 10; // 2020-10-08
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	637 case Types.TIME:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	638 return 15; // 21:51:34.399753
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	639 case Types.TIME_WITH_TIMEZONE:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	640 return 21; // 21:51:34.399753+02:00
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	641 case Types.TIMESTAMP:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	642 return 26; // 2020-10-08 21:51:34.399753
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	643 case Types.TIMESTAMP_WITH_TIMEZONE:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	644 return 32; // 2020-10-08 21:51:34.399753+02:00
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	645 case Types.BOOLEAN:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	646 return 1;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	647 default:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	648 // All other types should return 0
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	649 return 0;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	650 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	651 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	652
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	653 /**
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	654 * Gets the designated column's number of digits to right of
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	655 * the decimal point.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	656 * 0 is returned for data types where the scale is not applicable.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	657 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	658 * @param column the first column is 1, the second is 2, ...
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	659 * @return scale
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	660 * @throws SQLException if there is no such column
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	661 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	662 @Override
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	663 public int getScale(final int column) throws SQLException {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	664 switch (getColumnType(column)) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	665 case Types.DECIMAL:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	666 case Types.NUMERIC:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	667 {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	668 // these data types may have a variable scale, max scale is 38
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	669
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	670 // Special handling for: day_interval and sec_interval as they are
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	671 // mapped to Types.NUMERIC and Types.DECIMAL types (see MonetDriver typeMap)
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	672 // They appear to have a fixed scale (tested against Oct2020)
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	673 final String monettype = getColumnTypeName(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	674 if ("interval day".equals(monettype))
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	675 return 0;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	676 if ("interval second".equals(monettype))
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	677 return 3;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	678
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	679 if (scales != null) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	680 try {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	681 return scales[column - 1];
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	682 } catch (IndexOutOfBoundsException e) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	683 throw MonetResultSet.newSQLInvalidColumnIndexException(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	684 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	685 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	686 return 0;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	687 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	688 case Types.TIME:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	689 case Types.TIME_WITH_TIMEZONE:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	690 case Types.TIMESTAMP:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	691 case Types.TIMESTAMP_WITH_TIMEZONE:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	692 if (scales != null) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	693 try {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	694 return scales[column - 1];
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	695 } catch (IndexOutOfBoundsException e) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	696 throw MonetResultSet.newSQLInvalidColumnIndexException(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	697 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	698 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	699 // support microseconds, so scale 6
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	700 return 6; // 21:51:34.399753
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	701
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	702 // All other types should return 0
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	703 // case Types.BIGINT:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	704 // case Types.INTEGER:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	705 // case Types.SMALLINT:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	706 // case Types.TINYINT:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	707 // case Types.REAL:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	708 // case Types.FLOAT:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	709 // case Types.DOUBLE:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	710 // case Types.CHAR:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	711 // case Types.VARCHAR:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	712 // case Types.LONGVARCHAR: // MonetDB doesn't use type LONGVARCHAR, it's here for completeness
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	713 // case Types.CLOB:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	714 // case Types.BINARY:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	715 // case Types.VARBINARY:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	716 // case Types.BLOB:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	717 // case Types.DATE:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	718 // case Types.BOOLEAN:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	719 default:
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	720 return 0;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	721 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	722 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	723
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	724 /**
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	725 * Indicates whether the designated column is definitely not
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	726 * writable. MonetDB does not support cursor updates, so
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	727 * nothing is writable.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	728 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	729 * @param column the first column is 1, the second is 2, ...
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	730 * @return true if so; false otherwise
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	731 * @throws SQLException if there is no such column
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	732 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	733 @Override
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	734 public boolean isReadOnly(final int column) throws SQLException {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	735 checkColumnIndexValidity(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	736 return true;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	737 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	738
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	739 /**
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	740 * Indicates whether it is possible for a write on the
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	741 * designated column to succeed.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	742 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	743 * @param column the first column is 1, the second is 2, ...
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	744 * @return true if so; false otherwise
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	745 * @throws SQLException if there is no such column
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	746 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	747 @Override
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	748 public boolean isWritable(final int column) throws SQLException {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	749 checkColumnIndexValidity(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	750 return false;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	751 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	752
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	753 /**
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	754 * Indicates whether a write on the designated column will
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	755 * definitely succeed.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	756 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	757 * @param column the first column is 1, the second is 2, ...
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	758 * @return true if so; false otherwise
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	759 * @throws SQLException if there is no such column
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	760 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	761 @Override
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	762 public boolean isDefinitelyWritable(final int column) throws SQLException {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	763 checkColumnIndexValidity(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	764 return false;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	765 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	766
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	767 /**
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	768 * Returns the fully-qualified name of the Java class whose instances
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	769 * are manufactured if the method ResultSet.getObject is called to
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	770 * retrieve a value from the column.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	771 * ResultSet.getObject may return a subclass of the class returned by
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	772 * this method.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	773 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	774 * @param column the first column is 1, the second is 2, ...
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	775 * @return the fully-qualified name of the class in the Java programming
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	776 * language that would be used by the method ResultSet.getObject
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	777 * to retrieve the value in the specified column. This is the
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	778 * class name used for custom mapping.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	779 * @throws SQLException if there is no such column
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	780 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	781 @Override
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	782 public String getColumnClassName(final int column) throws SQLException {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	783 checkColumnIndexValidity(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	784 try {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	785 final String MonetDBType = types[column - 1];
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	786 Class<?> type = null;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	787 if (conn != null) {
714 ad7b08ef7745 Moving static method getClassForType() from MonetResulSet to MonetDriver class which is a much more logical place. Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 713 diff changeset	788 final java.util.Map<String,Class<?>> map = conn.getTypeMap();
713 c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	789 if (map != null && map.containsKey(MonetDBType)) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	790 type = (Class)map.get(MonetDBType);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	791 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	792 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	793 if (type == null) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	794 // fallback to the standard SQL type Class mappings
714 ad7b08ef7745 Moving static method getClassForType() from MonetResulSet to MonetDriver class which is a much more logical place. Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 713 diff changeset	795 type = MonetDriver.getClassForType(JdbcSQLTypes[column - 1]);
713 c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	796 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	797 if (type != null) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	798 return type.getCanonicalName();
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	799 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	800 throw new SQLException("column type mapping null: " + MonetDBType, "M0M03");
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	801 } catch (IndexOutOfBoundsException e) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	802 throw MonetResultSet.newSQLInvalidColumnIndexException(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	803 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	804 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	805
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	806
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	807 /**
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	808 * A private utility method to check validity of column index number
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	809 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	810 * @param column the first column is 1, the second is 2, ...
720 99baab703566 Resolve some javac -Xdoclint warnings Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 718 diff changeset	811 * @throws java.sql.SQLDataException when invalid column index number
713 c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	812 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	813 private final void checkColumnIndexValidity(final int column) throws java.sql.SQLDataException {
717 7240d2dd369f Improved implementation of PreparedStatement.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: 714 diff changeset	814 if (column < 1 \|\| column > colCount)
713 c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	815 throw MonetResultSet.newSQLInvalidColumnIndexException(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	816 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	817
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	818 /**
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	819 * A private method to fetch the isNullable and isAutoincrement values
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	820 * combined for a specific column.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	821 * The fetched values are stored in the array caches.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	822 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	823 * @param column the first column is 1, the second is 2, ...
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	824 * @throws SQLException if there is no such column
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	825 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	826 private final void fetchColumnInfo(final int column) throws SQLException {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	827 // for debug: System.out.println("fetchColumnInfo(" + column + ")");
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	828 checkColumnIndexValidity(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	829 if (_is_fetched[column] != true) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	830 // fetch column info for multiple columns combined in one go
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	831 fetchManyColumnsInfo(column);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	832 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	833 if (_is_fetched[column])
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	834 return;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	835
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	836 // apparently no data could be fetched for this resultset column, fall back to defaults
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	837 _isNullable[column] = columnNullableUnknown;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	838 _isAutoincrement[column] = false;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	839 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	840
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	841 /**
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	842 * A private method to fetch the isNullable and isAutoincrement values
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	843 * for many fully qualified columns combined in one SQL query to reduce the number of queries sent.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	844 * As fetching this meta information from the server per column is costly we combine the querying of
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	845 * the isNullable and isAutoincrement values and cache it in internal arrays.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	846 * We also do this for many columns combined in one query to reduce
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	847 * the number of queries needed for fetching this metadata for all resultset columns.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	848 * Many generic JDBC database tools (e.g. SQuirreL, DBeaver) request this meta data for each
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	849 * column of each resultset, so these optimisations reduces the number of meta data queries significantly.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	850 *
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	851 * @param column the first column is 1, the second is 2, ...
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	852 * @throws SQLException if a database access error occurs
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	853 */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	854 private final void fetchManyColumnsInfo(final int column) throws SQLException {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	855 // for debug: System.out.println("fetchManyColumnsInfo(" + column + ")");
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	856
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	857 // Most queries have less than 80 resultset columns
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	858 // So 80 is a good balance between speedup (up to 79x) and size of generated query sent to server
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	859 final int MAX_COLUMNS_PER_QUERY = 80;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	860
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	861 // Determine the optimal startcol to make use of fetching up to 80 columns in one query.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	862 int startcol = column;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	863 if ((startcol > 1) && (startcol + MAX_COLUMNS_PER_QUERY >= nextUpperbound)) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	864 // we can fetch info from more columns in one query if we start with a lower startcol
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	865 startcol = nextUpperbound - MAX_COLUMNS_PER_QUERY;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	866 if (startcol < 1) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	867 startcol = 1;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	868 } else
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	869 if (startcol > column) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	870 startcol = column;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	871 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	872 nextUpperbound = startcol; // next time this nextUpperbound value will be used
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	873 // for debug: System.out.println("fetchManyColumnsInfo(" + column + ")" + (startcol != column ? " changed into startcol: " + startcol : "") + " nextUpperbound: " + nextUpperbound);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	874 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	875
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	876 final StringBuilder query = new StringBuilder(410 + (MAX_COLUMNS_PER_QUERY * 150));
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	877 /* next SQL query is a simplified version of query in MonetDatabaseMetaData.getColumns(), to fetch only the needed attributes of a column */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	878 query.append("SELECT " +
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	879 "s.\"name\" AS schnm, " +
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	880 "t.\"name\" AS tblnm, " +
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	881 "c.\"name\" AS colnm, " +
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	882 "cast(CASE c.\"null\" WHEN true THEN ").append(ResultSetMetaData.columnNullable)
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	883 .append(" WHEN false THEN ").append(ResultSetMetaData.columnNoNulls)
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	884 .append(" ELSE ").append(ResultSetMetaData.columnNullableUnknown)
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	885 .append(" END AS int) AS nullable, ").append(
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	886 "cast(CASE WHEN c.\"default\" IS NOT NULL AND c.\"default\" LIKE 'next value for %' THEN true ELSE false END AS boolean) AS isautoincrement " +
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	887 "FROM \"sys\".\"columns\" c " +
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	888 "JOIN \"sys\".\"tables\" t ON c.\"table_id\" = t.\"id\" " +
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	889 "JOIN \"sys\".\"schemas\" s ON t.\"schema_id\" = s.\"id\" " +
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	890 "WHERE ");
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	891
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	892 /* combine the conditions for multiple (up to 80) columns into the WHERE-clause */
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	893 String schName = null;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	894 String tblName = null;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	895 String colName = null;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	896 int queriedcolcount = 0;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	897 for (int col = startcol; col < array_size && queriedcolcount < MAX_COLUMNS_PER_QUERY; col++) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	898 if (_is_fetched[col] != true) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	899 if (_is_queried[col] != true) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	900 _isNullable[col] = columnNullableUnknown;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	901 _isAutoincrement[col] = false;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	902 schName = getSchemaName(col);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	903 if (schName != null && !schName.isEmpty()) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	904 tblName = getTableName(col);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	905 if (tblName != null && !tblName.isEmpty()) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	906 colName = getColumnName(col);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	907 if (colName != null && !colName.isEmpty()) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	908 if (queriedcolcount > 0)
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	909 query.append(" OR ");
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	910 query.append("(s.\"name\" = ").append(MonetWrapper.sq(schName));
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	911 query.append(" AND t.\"name\" = ").append(MonetWrapper.sq(tblName));
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	912 query.append(" AND c.\"name\" = ").append(MonetWrapper.sq(colName));
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	913 query.append(")");
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	914 _is_queried[col] = true; // flag it
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	915 queriedcolcount++;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	916 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	917 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	918 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	919 if (_is_queried[col] != true) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	920 // make sure we do not try to query it again next time as it is not queryable
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	921 _is_fetched[col] = true;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	922 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	923 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	924 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	925 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	926
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	927 if (queriedcolcount == 0)
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	928 return;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	929
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	930 // execute query to get information on queriedcolcount (or less) columns.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	931 final java.sql.Statement stmt = conn.createStatement();
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	932 if (stmt != null) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	933 // for debug: System.out.println("SQL (len " + query.length() + "): " + query.toString());
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	934 final java.sql.ResultSet rs = stmt.executeQuery(query.toString());
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	935 if (rs != null) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	936 String rsSchema = null;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	937 String rsTable = null;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	938 String rsColumn = null;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	939 while (rs.next()) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	940 rsSchema = rs.getString(1); // col 1 is schnm
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	941 rsTable = rs.getString(2); // col 2 is tblnm
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	942 rsColumn = rs.getString(3); // col 3 is colnm
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	943 // find the matching schema.table.column entry in the array
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	944 for (int col = 1; col < array_size; col++) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	945 if (_is_fetched[col] != true && _is_queried[col]) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	946 colName = getColumnName(col);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	947 if (colName != null && colName.equals(rsColumn)) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	948 tblName = getTableName(col);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	949 if (tblName != null && tblName.equals(rsTable)) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	950 schName = getSchemaName(col);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	951 if (schName != null && schName.equals(rsSchema)) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	952 // found matching entry
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	953 // for debug: System.out.println("Found match at [" + col + "] for " + schName + "." + tblName + "." + colName);
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	954 _isNullable[col] = rs.getInt(4); // col 4 is nullable (or "NULLABLE")
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	955 _isAutoincrement[col] = rs.getBoolean(5); // col 5 is isautoincrement (or "IS_AUTOINCREMENT")
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	956 _is_fetched[col] = true;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	957 queriedcolcount--;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	958 // we found the match, exit the for-loop
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	959 col = array_size;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	960 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	961 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	962 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	963 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	964 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	965 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	966 rs.close();
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	967 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	968 stmt.close();
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	969 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	970
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	971 if (queriedcolcount != 0) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	972 // not all queried columns have resulted in a returned data row.
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	973 // make sure we do not match those columns again next run
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	974 for (int col = startcol; col < array_size; col++) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	975 if (_is_fetched[col] != true && _is_queried[col]) {
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	976 _is_fetched[col] = true;
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	977 // for debug: System.out.println("Found NO match at [" + col + "] for " + getSchemaName(col) + "." + getTableName(col) + "." + getColumnName(col));
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	978 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	979 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	980 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	981 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	982 }
c3c424a90a42 Improve implementation of ResultSet.getMetaData(). Martin van Dinther <martin.van.dinther@monetdbsolutions.com> parents: diff changeset	983

Mercurial > hg > monetdb-java

annotate src/main/java/org/monetdb/jdbc/MonetResultSetMetaData.java @ 726:89bbd04036cd