| /* |
| * 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 VetoableChangeListener} |
| * with a "constrained" property. |
| * Instances of this class can be added |
| * as {@code VetoableChangeListener}s to a bean |
| * which supports firing vetoable change events. |
| * <p> |
| * If the object has a {@code getVetoableChangeListeners} method |
| * then the array returned could be a mixture of {@code VetoableChangeListener} |
| * and {@code VetoableChangeListenerProxy} objects. |
| * |
| * @see java.util.EventListenerProxy |
| * @see VetoableChangeSupport#getVetoableChangeListeners |
| * @since 1.4 |
| */ |
| public class VetoableChangeListenerProxy |
| extends EventListenerProxy<VetoableChangeListener> |
| implements VetoableChangeListener { |
| |
| private final String propertyName; |
| |
| /** |
| * Constructor which binds the {@code VetoableChangeListener} |
| * to a specific property. |
| * |
| * @param propertyName the name of the property to listen on |
| * @param listener the listener object |
| */ |
| public VetoableChangeListenerProxy(String propertyName, VetoableChangeListener listener) { |
| super(listener); |
| this.propertyName = propertyName; |
| } |
| |
| /** |
| * Forwards the property change event to the listener delegate. |
| * |
| * @param event the property change event |
| * |
| * @exception PropertyVetoException if the recipient wishes the property |
| * change to be rolled back |
| */ |
| public void vetoableChange(PropertyChangeEvent event) throws PropertyVetoException{ |
| getListener().vetoableChange(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; |
| } |
| } |