/*
* $Id$
*
* Copyright (c) 2009-2010 by Joel Uckelman
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License (LGPL) as published by the Free Software Foundation.
*
* 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, copies are available
* at http://www.opensource.org.
*/
package VASSAL.property;
/**
* The listener interface for receiving {@link Property} change events.
*
* @param <T> the class of the value of the {@link Property} listened to
* @since 3.2.0
* @author Joel Uckelman
*/
public interface PropertyListener<T> {
/**
* Invoked when a {@link Property} change occurs.
*
* @param src the source of the change
* @param prop the changed {@link Property}
* @param oldVal the old value of the {@link Property}
* @param newVal the new value of the {@link Property}
*/
public <U extends T> void propertyChanged(Object src, Property<U> prop,
U oldVal, U newVal);
}