/*

 * Copyright (c) 1999, 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

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 */

package java.awt.event;

/**

 * An abstract adapter class for receiving ancestor moved and resized events.

 * The methods in this class are empty. This class exists as a

 * convenience for creating listener objects.

 * <p>

 * Extend this class and override the method for the event of interest. (If

 * you implement the <code>HierarchyBoundsListener</code> interface, you have

 * to define both methods in it. This abstract class defines null methods for

 * them both, so you only have to define the method for the event you care

 * about.)

 * <p>

 * Create a listener object using your class and then register it with a

 * Component using the Component's <code>addHierarchyBoundsListener</code>

 * method. When the hierarchy to which the Component belongs changes by

 * resize or movement of an ancestor, the relevant method in the listener

 * object is invoked, and the <code>HierarchyEvent</code> is passed to it.

 *

 * @author      David Mendenhall

 * @see         HierarchyBoundsListener

 * @see         HierarchyEvent

 * @since       1.3

 */

public abstract class HierarchyBoundsAdapter implements HierarchyBoundsListener

{

    /**

     * Called when an ancestor of the source is moved.

     */

    public void ancestorMoved(HierarchyEvent e) {}

    /**

     * Called when an ancestor of the source is resized.

     */

    public void ancestorResized(HierarchyEvent e) {}

}