/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* Licensed 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.cocoon.components.modules.database;
import java.lang.Integer;
import java.sql.PreparedStatement;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.Statement;
import java.sql.SQLException;
import java.util.Map;
import org.apache.avalon.framework.configuration.Configuration;
import org.apache.avalon.framework.configuration.ConfigurationException;
import org.apache.avalon.framework.thread.ThreadSafe;
/**
* Abstraction layer to encapsulate different DBMS behaviour for autoincrement columns.
*
* Here: <a href="http://www.mysql.com">MYSQL</a> AUTO_INCREMENT columns
*
* @author <a href="mailto:phantom@stserv.hcf.jhu.edu">Tim Myers</a>
* @version CVS $Id: MysqlAutoIncrementModule.java,v 1.3 2004/03/05 13:01:54 bdelacretaz Exp $
*/
public class MysqlAutoIncrementModule implements AutoIncrementModule, ThreadSafe {
public Object getPostValue( Configuration tableConf, Configuration columnConf, Configuration modeConf,
Connection conn, Statement stmt, Map objectModel ) throws SQLException, ConfigurationException {
Integer id = null;
/*
// if mysql did support callable statements ... i'm not sure what what would go here, maybe:
CallableStatement callStmt = conn.prepareCall("? = {CALL LAST_INSERT_ID()}");
callStmt.registerOutParameter(1, Types.INTEGER);
ResultSet resultSet = callStmt.executeQuery();
*/
PreparedStatement pstmt = conn.prepareStatement("SELECT LAST_INSERT_ID()");
ResultSet resultSet = pstmt.executeQuery();
while ( resultSet.next() ) {
id = new Integer(resultSet.getInt(1));
}
resultSet.close();
return id;
}
public boolean includeInQuery() { return false; }
public boolean includeAsValue() { return false; }
public Object getPreValue( Configuration tableConf, Configuration columnConf, Configuration modeConf,
Connection conn, Map objectModel ) throws SQLException, ConfigurationException {
return null;
}
public String getSubquery( Configuration tableConf, Configuration columnConf, Configuration modeConf )
throws ConfigurationException {
return null;
}
}