jdk/src/share/classes/java/beans/PropertyChangeListener.java

/*
 * Copyright 1996 Sun Microsystems, Inc.  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.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

package java.beans;

/**
 * A "PropertyChange" event gets fired whenever a bean changes a "bound"
 * property.  You can register a PropertyChangeListener with a source
 * bean so as to be notified of any bound property updates.
 */

public interface PropertyChangeListener extends java.util.EventListener {

    /**
     * This method gets called when a bound property is changed.
     * @param evt A PropertyChangeEvent object describing the event source
     *          and the property that has changed.
     */

    void propertyChange(PropertyChangeEvent evt);

}