PropertyChangeListener.java

/*
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

package java.beans;

import java.util.EventListener;

/**
 * A PropertyChangeListener can subscribe with a event source. Whenever that
 * source raises a PropertyChangeEvent this listener will get notified.
 */
public interface PropertyChangeListener extends EventListener {

    /**
     * The source bean calls this method when an event is raised.
     *
     * @param event
     *            the {@link PropertyChangeEvent} object which contains the name
     *            and the old and new value of the property that has changed.
     */
    public void propertyChange(PropertyChangeEvent event);
}