/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt 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.serial.references;

import java.lang.reflect.Field;

/**
 * Creates a persistentReference for Fields
 * @author csuconic
 */
public class FieldPersistentReference extends PersistentReference
{
	public FieldPersistentReference (Field field,int referenceType)
	{
		super(field!=null?field.getDeclaringClass():null,field,referenceType);
		this.name=field.getName();
	}
	String name;
	
	public synchronized Object rebuildReference() throws Exception
	{
		// A reference to guarantee the value is not being GCed during while the value is being rebuilt
		Object returnValue=null;
		if ((returnValue=internalGet())!=null) return returnValue;
		
		Field field = getMappedClass().getDeclaredField(name);
		field.setAccessible(true);
		buildReference(field);
		return field;
	}
	
	public Field getField() 
	{
		return (Field) get();
	}
}

