Mercurial > hg > monetdb-java
diff tests/Test_PSsomeamount.java @ 0:a5a898f6886c
Copy of MonetDB java directory changeset e6e32756ad31.
author | Sjoerd Mullender <sjoerd@acm.org> |
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date | Wed, 21 Sep 2016 09:34:48 +0200 (2016-09-21) |
parents | |
children | 04fbf3655452 |
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new file mode 100644 --- /dev/null +++ b/tests/Test_PSsomeamount.java @@ -0,0 +1,45 @@ +/* + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * Copyright 1997 - July 2008 CWI, August 2008 - 2016 MonetDB B.V. + */ + +import java.sql.*; +import java.util.*; + +/* Create a lot of PreparedStatements, to emulate webloads such as those + * from Hibernate. */ + +public class Test_PSsomeamount { + public static void main(String[] args) throws Exception { + Class.forName("nl.cwi.monetdb.jdbc.MonetDriver"); + Connection con = DriverManager.getConnection(args[0]); + Statement stmt = con.createStatement(); + PreparedStatement pstmt; + + // >> true: auto commit should be on + System.out.println("0. true\t" + con.getAutoCommit()); + + try { + System.out.println("1. Preparing and executing a unique statement"); + for (int i = 0; i < 10000; i++) { + pstmt = con.prepareStatement("select " + i + ", " + i + " = ?"); + pstmt.setInt(1, i); + ResultSet rs = pstmt.executeQuery(); + if (rs.next() && i % 1000 == 0) { + System.out.println(rs.getInt(1) + ", " + rs.getBoolean(2)); + } + /* this call should cause resources on the server to be + * freed */ + pstmt.close(); + } + } catch (SQLException e) { + System.out.println("FAILED :( "+ e.getMessage()); + System.out.println("ABORTING TEST!!!"); + } + + con.close(); + } +}