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annotate tests/Test_PSmetadata.java @ 0:a5a898f6886c

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Copy of MonetDB java directory changeset e6e32756ad31.
author Sjoerd Mullender <sjoerd@acm.org>
date Wed, 21 Sep 2016 09:34:48 +0200 (2016-09-21)
parents
children 04fbf3655452
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1 /*
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2 * This Source Code Form is subject to the terms of the Mozilla Public
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3 * License, v. 2.0. If a copy of the MPL was not distributed with this
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4 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
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5 *
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6 * Copyright 1997 - July 2008 CWI, August 2008 - 2016 MonetDB B.V.
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7 */
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8
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9 import java.sql.*;
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10
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11 public class Test_PSmetadata {
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12 public static void main(String[] args) throws Exception {
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13 Class.forName("nl.cwi.monetdb.jdbc.MonetDriver");
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14 Connection con = DriverManager.getConnection(args[0]);
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15 Statement stmt = con.createStatement();
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16 PreparedStatement pstmt;
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17 ResultSet rs = null;
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18 ResultSetMetaData rsmd = null;
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19 ParameterMetaData pmd = null;
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20
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21 con.setAutoCommit(false);
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22 // >> false: auto commit should be off now
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23 System.out.println("0. false\t" + con.getAutoCommit());
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24
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25 try {
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26 stmt.executeUpdate("CREATE TABLE table_Test_PSmetadata ( myint int, mydouble double, mybool boolean, myvarchar varchar(15), myclob clob )");
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27
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28 // all NULLs
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29 stmt.executeUpdate("INSERT INTO table_Test_PSmetadata VALUES (NULL, NULL, NULL, NULL, NULL)");
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30 // all filled in
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31 stmt.executeUpdate("INSERT INTO table_Test_PSmetadata VALUES (2 , 3.0, true, 'A string', 'bla bla bla')");
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32
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33 pstmt = con.prepareStatement("SELECT CASE WHEN myint IS NULL THEN 0 ELSE 1 END AS intnull, * FROM table_Test_PSmetadata WHERE myint = ?");
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34
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35 rsmd = pstmt.getMetaData();
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36
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37 System.out.println("0. 6 columns:\t" + rsmd.getColumnCount());
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38 for (int col = 1; col <= rsmd.getColumnCount(); col++) {
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39 System.out.println("" + col + ".\t" + rsmd.getCatalogName(col));
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40 System.out.println("\tclassname " + rsmd.getColumnClassName(col));
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41 System.out.println("\tdisplaysize " + rsmd.getColumnDisplaySize(col));
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42 System.out.println("\tlabel " + rsmd.getColumnLabel(col));
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43 System.out.println("\tname " + rsmd.getColumnName(col));
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44 System.out.println("\ttype " + rsmd.getColumnType(col));
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45 System.out.println("\ttypename " + rsmd.getColumnTypeName(col));
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46 System.out.println("\tprecision " + rsmd.getPrecision(col));
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47 System.out.println("\tscale " + rsmd.getScale(col));
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48 System.out.println("\tschemaname " + rsmd.getSchemaName(col));
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49 System.out.println("\ttablename " + rsmd.getTableName(col));
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50 System.out.println("\tautoincrement " + rsmd.isAutoIncrement(col));
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51 System.out.println("\tcasesensitive " + rsmd.isCaseSensitive(col));
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52 System.out.println("\tcurrency " + rsmd.isCurrency(col));
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53 System.out.println("\tdefwritable " + rsmd.isDefinitelyWritable(col));
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54 System.out.println("\tnullable " + rsmd.isNullable(col));
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55 System.out.println("\treadonly " + rsmd.isReadOnly(col));
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56 System.out.println("\tsearchable " + rsmd.isSearchable(col));
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57 System.out.println("\tsigned " + rsmd.isSigned(col));
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58 System.out.println("\twritable " + rsmd.isWritable(col));
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59 }
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60
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61 pmd = pstmt.getParameterMetaData();
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62 System.out.println("1. 1 parameter:\t" + pmd.getParameterCount());
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63 for (int col = 1; col <= pmd.getParameterCount(); col++) {
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64 System.out.println("" + col + ".");
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65 System.out.println("\tnullable " + pmd.isNullable(col));
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66 System.out.println("\tsigned " + pmd.isSigned(col));
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67 System.out.println("\tprecision " + pmd.getPrecision(col));
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68 System.out.println("\tscale " + pmd.getScale(col));
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69 System.out.println("\ttype " + pmd.getParameterType(col));
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70 System.out.println("\ttypename " + pmd.getParameterTypeName(col));
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71 System.out.println("\tclassname " + pmd.getParameterClassName(col));
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72 System.out.println("\tmode " + pmd.getParameterMode(col));
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73 }
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74 } catch (SQLException e) {
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75 System.out.println("failed :( "+ e.getMessage());
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76 System.out.println("ABORTING TEST!!!");
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77 }
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78
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79 con.rollback();
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80 con.close();
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81 }
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82
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83 private static String isInstance(Object obj, String type) {
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84 if (obj == null)
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85 return("(null)");
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86 try {
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87 Class c = Class.forName(type);
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88 if (c.isInstance(obj)) {
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89 return(obj.getClass().getName() + " is an instance of " + type);
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90 } else {
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91 return(obj.getClass().getName() + " is NOT an instance of " + type);
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92 }
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93 } catch (ClassNotFoundException e) {
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94 return("No such class: " + type);
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95 }
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96 }
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97 }