/*
* ReferenceFacade.java
* Copyright 2010 Connor Petty <cpmeister@users.sourceforge.net>
*
* This library 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 library 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 library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Created on Apr 25, 2010, 3:37:16 PM
*/
package pcgen.facade.util;
import pcgen.base.util.Reference;
import pcgen.facade.util.event.ReferenceListener;
/**
* This facade holds a reference to a single object
* but with the object that it holds a reference to can be changed by
* an implementor of this interface. When the reference changes a
* reference change event is fired to all registered listeners.
* @author Connor Petty <cpmeister@users.sourceforge.net>
*/
public interface ReferenceFacade<E> extends Reference<E>
{
void addReferenceListener(ReferenceListener<? super E> listener);
void removeReferenceListener(ReferenceListener<? super E> listener);
}