/*
* JBoss, Home of Professional Open Source.
* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.ejb.plugins.cmp.jdbc.bridge;
import org.jboss.ejb.EntityEnterpriseContext;
import org.jboss.ejb.plugins.cmp.jdbc.JDBCStoreManager;
import org.jboss.ejb.plugins.cmp.jdbc.metadata.JDBCCMPFieldMetaData;
import org.jboss.deployment.DeploymentException;
/**
*
* @author <a href="mailto:alex@jboss.org">Alexey Loubyansky</a>
*/
public class JDBCLongVersionFieldBridge extends JDBCCMP2xVersionFieldBridge
{
private static final Long FIRST_VERSION = new Long(1);
public JDBCLongVersionFieldBridge(JDBCStoreManager manager,
JDBCCMPFieldMetaData metadata)
throws DeploymentException
{
super(manager, metadata);
}
public JDBCLongVersionFieldBridge(JDBCCMP2xFieldBridge cmpField)
throws DeploymentException
{
super(cmpField);
}
public void setFirstVersion(EntityEnterpriseContext ctx)
{
setInstanceValue(ctx, FIRST_VERSION);
}
public Object updateVersion(EntityEnterpriseContext ctx)
{
final Long value = (Long)getInstanceValue(ctx);
Long next = value == null ? FIRST_VERSION : new Long(value.longValue() + 1);
setInstanceValue(ctx, next);
return next;
}
}