/* * @(#)EventListenerProxy.java 1.7 06/10/10 * * Copyright 1990-2008 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License version * 2 only, as published by the Free Software Foundation. * * This program 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 * General Public License version 2 for more details (a copy is * included at /legal/license.txt). * * You should have received a copy of the GNU General Public License * version 2 along with this work; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa * Clara, CA 95054 or visit www.sun.com if you need additional * information or have any questions. */ package java.util; /** * An abstract wrapper class for an EventListener class which associates a set * of additional parameters with the listener. Subclasses must provide the * storage and accessor methods for the additional arguments or parameters. * * Subclasses of EventListerProxy may be returned by getListeners() methods * as a way of associating named properties with their listeners. * * If the calling method is interested in retrieving the named property then it * would have to test the element to see if it is a proxy class. * * @since 1.4 */ public abstract class EventListenerProxy implements EventListener { private final EventListener listener; /** * @param listener The listener object. */ public EventListenerProxy(EventListener listener) { this.listener = listener; } /** * @return The listener associated with this proxy. */ public EventListener getListener() { return listener; } }