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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.
 Extend this class and override the method for the event of interest. (If you implement the HierarchyBoundsListener 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.) 
 Create a listener object using your class and then register it with a Component using the Component's addHierarchyBoundsListener 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 HierarchyEvent is passed to it. 
Author:
     David Mendenhall
See Also:
HierarchyBoundsListener
HierarchyEvent
Since:
      1.3/**
 * 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} 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}
 * 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} 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.
/**
     * Called when an ancestor of the source is moved.
     */
    public void ancestorMoved(HierarchyEvent e) {}

    
Called when an ancestor of the source is resized.
/**
     * Called when an ancestor of the source is resized.
     */
    public void ancestorResized(HierarchyEvent e) {}
}