1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/rt/emul/compact/src/main/java/java/beans/PropertyChangeListenerProxy.java Tue Feb 26 16:54:16 2013 +0100
1.3 @@ -0,0 +1,81 @@
1.4 +/*
1.5 + * Copyright (c) 2000, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation. Oracle designates this
1.11 + * particular file as subject to the "Classpath" exception as provided
1.12 + * by Oracle in the LICENSE file that accompanied this code.
1.13 + *
1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 + * version 2 for more details (a copy is included in the LICENSE file that
1.18 + * accompanied this code).
1.19 + *
1.20 + * You should have received a copy of the GNU General Public License version
1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 + *
1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 + * or visit www.oracle.com if you need additional information or have any
1.26 + * questions.
1.27 + */
1.28 +
1.29 +package java.beans;
1.30 +
1.31 +import java.util.EventListenerProxy;
1.32 +
1.33 +/**
1.34 + * A class which extends the {@code EventListenerProxy}
1.35 + * specifically for adding a {@code PropertyChangeListener}
1.36 + * with a "bound" property.
1.37 + * Instances of this class can be added
1.38 + * as {@code PropertyChangeListener}s to a bean
1.39 + * which supports firing property change events.
1.40 + * <p>
1.41 + * If the object has a {@code getPropertyChangeListeners} method
1.42 + * then the array returned could be a mixture of {@code PropertyChangeListener}
1.43 + * and {@code PropertyChangeListenerProxy} objects.
1.44 + *
1.45 + * @see java.util.EventListenerProxy
1.46 + * @see PropertyChangeSupport#getPropertyChangeListeners
1.47 + * @since 1.4
1.48 + */
1.49 +public class PropertyChangeListenerProxy
1.50 + extends EventListenerProxy<PropertyChangeListener>
1.51 + implements PropertyChangeListener {
1.52 +
1.53 + private final String propertyName;
1.54 +
1.55 + /**
1.56 + * Constructor which binds the {@code PropertyChangeListener}
1.57 + * to a specific property.
1.58 + *
1.59 + * @param propertyName the name of the property to listen on
1.60 + * @param listener the listener object
1.61 + */
1.62 + public PropertyChangeListenerProxy(String propertyName, PropertyChangeListener listener) {
1.63 + super(listener);
1.64 + this.propertyName = propertyName;
1.65 + }
1.66 +
1.67 + /**
1.68 + * Forwards the property change event to the listener delegate.
1.69 + *
1.70 + * @param event the property change event
1.71 + */
1.72 + public void propertyChange(PropertyChangeEvent event) {
1.73 + getListener().propertyChange(event);
1.74 + }
1.75 +
1.76 + /**
1.77 + * Returns the name of the named property associated with the listener.
1.78 + *
1.79 + * @return the name of the named property associated with the listener
1.80 + */
1.81 + public String getPropertyName() {
1.82 + return this.propertyName;
1.83 + }
1.84 +}