/*
* 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;
import org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCCMPFieldBridge;
import org.jboss.ejb.EntityEnterpriseContext;
/**
*
* @author <a href="mailto:alex@jboss.org">Alexey Loubyansky</a>
*/
public interface LockingStrategy
{
LockingStrategy VERSION = new AbstractStrategy()
{
public void loaded(JDBCCMPFieldBridge field, EntityEnterpriseContext ctx)
{
field.lockInstanceValue(ctx);
}
};
LockingStrategy GROUP = new AbstractStrategy()
{
public void loaded(JDBCCMPFieldBridge field, EntityEnterpriseContext ctx)
{
field.lockInstanceValue(ctx);
}
};
LockingStrategy READ = new AbstractStrategy()
{
public void accessed(JDBCCMPFieldBridge field, EntityEnterpriseContext ctx)
{
field.lockInstanceValue(ctx);
}
public void changed(JDBCCMPFieldBridge field, EntityEnterpriseContext ctx)
{
field.lockInstanceValue(ctx);
}
};
LockingStrategy MODIFIED = new AbstractStrategy()
{
public void changed(JDBCCMPFieldBridge field, EntityEnterpriseContext ctx)
{
field.lockInstanceValue(ctx);
}
};
LockingStrategy NONE = new AbstractStrategy(){};
class AbstractStrategy implements LockingStrategy
{
public void loaded(JDBCCMPFieldBridge field, EntityEnterpriseContext ctx)
{
}
public void accessed(JDBCCMPFieldBridge field, EntityEnterpriseContext ctx)
{
}
public void changed(JDBCCMPFieldBridge field, EntityEnterpriseContext ctx)
{
}
}
void loaded(JDBCCMPFieldBridge field, EntityEnterpriseContext ctx);
void accessed(JDBCCMPFieldBridge field, EntityEnterpriseContext ctx);
void changed(JDBCCMPFieldBridge field, EntityEnterpriseContext ctx);
}