/*
 * 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.cocoon.components.modules.database;

import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Statement;
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: Informix IUS 9.21 SERIAL columns
 * (need another one for SERIAL8 ones!)
 *
 * @author <a href="mailto:haul@apache.org">Christian Haul</a>
 * @version CVS $Id$
 */
public class IfxSerialAutoIncrementModule implements AutoIncrementModule, ThreadSafe {

    public Object getPostValue( Configuration tableConf, Configuration columnConf, Configuration modeConf,
                                Connection conn, Statement stmt, Map objectModel )
        throws SQLException, ConfigurationException {

        return new Integer(((com.informix.jdbc.IfxStatement) stmt).getSerial());
    }


    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;
    }

}