aggregationlistener.java

GEo 地理操作源代码

/**************************************************************************************************
 **
 ** $Id: AggregationListener.java,v 1.3 2004/03/02 03:14:41 gregreynolds Exp $
 **
 ** $Source: /cvsroot/geoapi/src/org/opengis/go/display/event/AggregationListener.java,v $
 **
 ** Copyright (C) 2003 Open GIS Consortium, Inc. All Rights Reserved. http://www.opengis.org/Legal/
 **
 *************************************************************************************************/
package org.opengis.go.display.event;

// J2SE direct dependencies
import java.util.EventListener;

/**
 * Allows an implementing object to listen to element addition, removal,
 * and ordering changes in an aggregating object.
 *  
 * @version $Revision: 1.3 $, $Date: 2004/03/02 03:14:41 $
 * @author <A HREF="http://www.opengis.org">OpenGIS&reg; consortium</A>
 */
public interface AggregationListener extends EventListener {
        
        /**
     * Invoked when any elements are added, removed, 
         * or reorderd (if supported) in the aggregating object.
     *
     * @param event The aggregation event.
         */
    public void aggregationChanged(AggregationChangeEvent event);
}