diff -r 5198affdb915 -r d382dacfd73f rt/emul/compact/src/main/java/java/beans/PropertyChangeListenerProxy.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/rt/emul/compact/src/main/java/java/beans/PropertyChangeListenerProxy.java Tue Feb 26 16:54:16 2013 +0100 @@ -0,0 +1,81 @@ +/* + * Copyright (c) 2000, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code 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. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * This code 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 in the LICENSE file that + * accompanied this code). + * + * 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +package java.beans; + +import java.util.EventListenerProxy; + +/** + * A class which extends the {@code EventListenerProxy} + * specifically for adding a {@code PropertyChangeListener} + * with a "bound" property. + * Instances of this class can be added + * as {@code PropertyChangeListener}s to a bean + * which supports firing property change events. + *

+ * If the object has a {@code getPropertyChangeListeners} method + * then the array returned could be a mixture of {@code PropertyChangeListener} + * and {@code PropertyChangeListenerProxy} objects. + * + * @see java.util.EventListenerProxy + * @see PropertyChangeSupport#getPropertyChangeListeners + * @since 1.4 + */ +public class PropertyChangeListenerProxy + extends EventListenerProxy + implements PropertyChangeListener { + + private final String propertyName; + + /** + * Constructor which binds the {@code PropertyChangeListener} + * to a specific property. + * + * @param propertyName the name of the property to listen on + * @param listener the listener object + */ + public PropertyChangeListenerProxy(String propertyName, PropertyChangeListener listener) { + super(listener); + this.propertyName = propertyName; + } + + /** + * Forwards the property change event to the listener delegate. + * + * @param event the property change event + */ + public void propertyChange(PropertyChangeEvent event) { + getListener().propertyChange(event); + } + + /** + * Returns the name of the named property associated with the listener. + * + * @return the name of the named property associated with the listener + */ + public String getPropertyName() { + return this.propertyName; + } +}