/*
*
* Derby - Class org.apache.derbyTesting.system.sttest.CompressTable
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with this
* work for additional information regarding copyright ownership. The ASF
* licenses this file to You under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*
*/
package org.apache.derbyTesting.system.sttest.utils;
import java.io.IOException;
import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Date;
import org.apache.derby.tools.JDBCDisplayUtil;
import org.apache.derby.tools.ij;
import org.apache.derbyTesting.system.sttest.tools.MemCheck;
/**
* This class is used to compress the table to retrieve the space after deletion
*/
public class CompressTable {
static boolean startByIJ = false;
static String dbURL = "jdbc:derby:testDB";
static String driver = "org.apache.derby.jdbc.EmbeddedDriver";
public static void main(String[] args) throws SQLException, IOException,
InterruptedException, Exception, Throwable {
Connection conn = null;
Date d = null;
Class.forName(driver).newInstance();
try {
conn = mystartJBMS();
} catch (Throwable t) {
return;
}
MemCheck mc = new MemCheck(200000);
mc.start();
compress(conn);
System.exit(0);
}
static public Connection mystartJBMS() throws Throwable {
Connection conn = null;
if (startByIJ == true)
conn = ij.startJBMS();
else
try {
conn = DriverManager.getConnection(dbURL + ";create=false");
conn.setAutoCommit(false);
} catch (SQLException se) {
System.out.println("connect failed for " + dbURL);
JDBCDisplayUtil.ShowException(System.out, se);
}
return (conn);
}
static synchronized void compress(Connection conn)
throws java.lang.Exception {
System.out.println("compressing table");
try {
conn.setAutoCommit(true);
CallableStatement cs = conn
.prepareCall("CALL SYSCS_UTIL.SYSCS_INPLACE_COMPRESS_TABLE(?, ?, ?, ?, ?)");
cs.setString(1, "APP");
cs.setString(2, "DATATYPES");
cs.setShort(3, (short) 1);
cs.setShort(4, (short) 1);
cs.setShort(5, (short) 1);
cs.execute();
cs.close();
} catch (SQLException se) {
System.out.println("compress table: FAIL -- unexpected exception:");
JDBCDisplayUtil.ShowException(System.out, se);
}
}
}