+
−/*
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− * This Source Code Form is subject to the terms of the Mozilla Public
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− * License, v. 2.0.  If a copy of the MPL was not distributed with this
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− * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
− *
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− * Copyright 1997 - July 2008 CWI, August 2008 - 2016 MonetDB B.V.
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− */
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−
+
−import java.sql.*;
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−import java.io.*;
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−import java.util.*;
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−
+
−import nl.cwi.monetdb.mcl.connection.DeleteMe;
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−import nl.cwi.monetdb.mcl.io.AbstractMCLReader;
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−import nl.cwi.monetdb.mcl.io.AbstractMCLWriter;
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−
+
−/**
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− * This example demonstrates how the MonetDB JDBC driver can facilitate
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− * in performing COPY INTO sequences.  This is mainly meant to show how
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− * a quick load can be performed from Java.
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− *
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− * @author Fabian Groffen
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− */
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−
+
−public class SQLcopyinto {
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−	public static void main(String[] args) throws Exception {
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−		// make sure the driver is loaded
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−		Class.forName("nl.cwi.monetdb.jdbc.MonetDriver");
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−		// request a connection suitable for Monet from the driver manager
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−		// note that the database specifier is currently not implemented, for
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−		// Monet itself can't access multiple databases.
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−		// turn on debugging
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−		Connection con = DriverManager.getConnection("jdbc:monetdb://localhost/database", "monetdb", "monetdb");
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−
+
−		// get a statement to execute on
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−		Statement stmt = con.createStatement();
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−
+
−		String query = "CREATE TABLE example (id int, val varchar(24))";
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−		try {
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−			stmt.execute(query);
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−		} catch (SQLException e) {
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−			System.out.println(query + ": " + e.getMessage());
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−			System.exit(1);
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−		}
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−
+
−		// now create a connection manually to perform a load, this can
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−		// of course also be done simultaneously with the JDBC
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−		// connection being kept connected
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−
+
−		DeleteMe server = new DeleteMe("localhost", 50000, "monetdb", "monetdb", false, "sql", "SHA256");
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−
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−		server.setDatabase("database");
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−		server.setLanguage("sql");
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−
+
−		try {
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−			List warning = 
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−				server.connect( "monetdb", "monetdb");
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−			if (warning != null) {
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−				for (Object aWarning : warning) {
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−					System.out.println(aWarning.toString());
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−				}
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−			}
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−
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−			AbstractMCLReader in = server.getReader();
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−			AbstractMCLWriter out = server.getWriter();
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−
+
−			String error = in.waitForPrompt();
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−			if (error != null)
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−				throw new Exception(error);
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−
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−			query = "COPY INTO example FROM STDIN USING DELIMITERS ',','\\n';";
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−			// the leading 's' is essential, since it is a protocol
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−			// marker that should not be omitted, likewise the
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−			// trailing semicolon
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−			out.write('s');
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−			out.write(query);
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−			out.newLine();
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−			for (int i = 0; i < 100; i++) {
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−				out.write("" + i + ",val_" + i);
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−				out.newLine();
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−			}
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−			out.writeLine(""); // need this one for synchronisation over flush()
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−			error = in.waitForPrompt();
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−			if (error != null)
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−				throw new Exception(error);
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−			// disconnect from server
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−			server.close();
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−		} catch (IOException e) {
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−			System.err.println("unable to connect: " + e.getMessage());
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−			System.exit(-1);
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−		} catch (Exception e) {
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−			System.err.println(e.getMessage());
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−			System.exit(-1);
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−		}
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−
+
−		query = "SELECT COUNT(*) FROM example";
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−		ResultSet rs = null;
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−		try {
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−			rs = stmt.executeQuery(query);
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−		} catch (SQLException e) {
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−			System.out.println(query + ": " + e.getMessage());
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−			System.exit(1);
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−		}
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−		if (rs != null && rs.next())
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−			System.out.println(rs.getString(1));
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−
+
−		// free resources, close the statement
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−		stmt.close();
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−		// close the connection with the database
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−		con.close();
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−
+
−	}
+
−}