EventListenerProxy.java revision 0
0N/A * Copyright 2000-2004 Sun Microsystems, Inc. All Rights Reserved. 0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 0N/A * This code is free software; you can redistribute it and/or modify it 0N/A * under the terms of the GNU General Public License version 2 only, as 0N/A * published by the Free Software Foundation. Sun designates this 0N/A * particular file as subject to the "Classpath" exception as provided 0N/A * by Sun in the LICENSE file that accompanied this code. 0N/A * This code is distributed in the hope that it will be useful, but WITHOUT 0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 0N/A * version 2 for more details (a copy is included in the LICENSE file that 0N/A * accompanied this code). 0N/A * You should have received a copy of the GNU General Public License version 0N/A * 2 along with this work; if not, write to the Free Software Foundation, 0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 0N/A * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 0N/A * CA 95054 USA or visit www.sun.com if you need additional information or 0N/A * have any questions. 0N/A * An abstract wrapper class for an {@code EventListener} class 0N/A * which associates a set of additional parameters with the listener. 0N/A * Subclasses must provide the storage and accessor methods 0N/A * for the additional arguments or parameters. 0N/A * For example, a bean which supports named properties 0N/A * would have a two argument method signature for adding 0N/A * a {@code PropertyChangeListener} for a property: 0N/A * public void addPropertyChangeListener(String propertyName, 0N/A * PropertyChangeListener listener) 0N/A * If the bean also implemented the zero argument get listener method: 0N/A * public PropertyChangeListener[] getPropertyChangeListeners() 0N/A * then the array may contain inner {@code PropertyChangeListeners} 0N/A * which are also {@code PropertyChangeListenerProxy} objects. 0N/A * If the calling method is interested in retrieving the named property 0N/A * then it would have to test the element to see if it is a proxy class. 0N/A * Creates a proxy for the specified listener. 0N/A * @param listener the listener object 0N/A * Returns the listener associated with the proxy. 0N/A * @return the listener associated with the proxy