/*
* 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.aspects.versioned;
import org.jboss.aop.InstanceAdvised;
import org.jboss.util.id.GUID;
public class DistributedFieldUpdate implements java.io.Serializable
{
private static final long serialVersionUID = -8249659475610689146L;
protected Object val;
protected long version;
protected int index;
public DistributedFieldUpdate() {}
public DistributedFieldUpdate(Object val, long version, int index)
{
setValue(val);
this.version = version;
this.index = index;
}
public long getVersionId() { return version; }
public void setVersionId(long newId) { version = newId; }
public int getFieldIndex() { return index; }
public boolean equals(Object obj)
{
DistributedFieldUpdate update = (DistributedFieldUpdate)obj;
return update.index == this.index;
}
public int hashCode()
{
return index;
}
public Object getValue()
{
if (val instanceof VersionReference)
{
return ((VersionReference)val).get();
}
return val;
}
public void setValue(Object newVal)
{
if (newVal instanceof InstanceAdvised)
{
InstanceAdvised advised = (InstanceAdvised)newVal;
GUID guid = VersionManager.getGUID(advised);
if (guid != null)
{
// we are versioned
val = new VersionReference(guid, advised);
return;
}
}
val = newVal;
}
public Object getNonDereferencedValue()
{
return val;
}
}