package org.apache.torque.engine.platform;
/*
* Copyright 2003,2004 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.
*/
import org.apache.torque.engine.database.model.Domain;
import org.apache.torque.engine.database.model.SchemaType;
/**
* DB2 Platform implementation.
*
* @author <a href="mailto:mpoeschl@marmot.at">Martin Poeschl</a>
* @version $Id: PlatformDb2Impl.java,v 1.5 2004/02/22 06:27:19 jmcnally Exp $
*/
public class PlatformDb2Impl extends PlatformDefaultImpl
{
/**
* Default constructor.
*/
public PlatformDb2Impl()
{
super();
initialize();
}
/**
* Initializes db specific domain mapping.
*/
private void initialize()
{
setSchemaDomainMapping(new Domain(SchemaType.CHAR, "VARCHAR"));
setSchemaDomainMapping(new Domain(SchemaType.BOOLEANCHAR, "VARCHAR"));
setSchemaDomainMapping(new Domain(SchemaType.LONGVARCHAR, "LONG VARCHAR"));
setSchemaDomainMapping(new Domain(SchemaType.BINARY, "CHAR(n) FOR BIT DATA"));
setSchemaDomainMapping(new Domain(SchemaType.VARBINARY, "VARCHAR(n) FOR BIT DATA"));
setSchemaDomainMapping(new Domain(SchemaType.LONGVARBINARY, "LONG VARCHAR FOR BIT DATA"));
}
/**
* @see Platform#getMaxColumnNameLength()
*/
public int getMaxColumnNameLength()
{
// TODO check this! (value taken from db.props)
return 18;
}
/**
* @see Platform#getAutoIncrement()
*/
public String getAutoIncrement()
{
return "GENERATED ALWAYS AS IDENTITY";
}
}