01: /*
02: * @(#)EventListenerProxy.java 1.7 06/10/10
03: *
04: * Copyright 1990-2006 Sun Microsystems, Inc. All Rights Reserved.
05: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
06: *
07: * This program is free software; you can redistribute it and/or
08: * modify it under the terms of the GNU General Public License version
09: * 2 only, as published by the Free Software Foundation.
10: *
11: * This program is distributed in the hope that it will be useful, but
12: * WITHOUT ANY WARRANTY; without even the implied warranty of
13: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14: * General Public License version 2 for more details (a copy is
15: * included at /legal/license.txt).
16: *
17: * You should have received a copy of the GNU General Public License
18: * version 2 along with this work; if not, write to the Free Software
19: * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20: * 02110-1301 USA
21: *
22: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
23: * Clara, CA 95054 or visit www.sun.com if you need additional
24: * information or have any questions.
25: */
26:
27: package java.util;
28:
29: /**
30: * An abstract wrapper class for an EventListener class which associates a set
31: * of additional parameters with the listener. Subclasses must provide the
32: * storage and accessor methods for the additional arguments or parameters.
33: *
34: * Subclasses of EventListerProxy may be returned by getListeners() methods
35: * as a way of associating named properties with their listeners.
36: *
37: * If the calling method is interested in retrieving the named property then it
38: * would have to test the element to see if it is a proxy class.
39: *
40: * @since 1.4
41: */
42: public abstract class EventListenerProxy implements EventListener {
43: private final EventListener listener;
44:
45: /**
46: * @param listener The listener object.
47: */
48: public EventListenerProxy(EventListener listener) {
49: this .listener = listener;
50: }
51:
52: /**
53: * @return The listener associated with this proxy.
54: */
55: public EventListener getListener() {
56: return listener;
57: }
58: }
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