/*
* 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
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
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) {}
}