diff tests/Test_PSsomeamount.java @ 0:a5a898f6886c

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)
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children 04fbf3655452
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+/*
+ * 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();
+	}
+}