1. /*

  2.  * @(#)BeanContextMembershipListener.java	1.9 00/02/02

  3.  *

  4.  * Copyright 1997-2000 Sun Microsystems, Inc. All Rights Reserved.

  5.  * 

  6.  * This software is the proprietary information of Sun Microsystems, Inc.  

  7.  * Use is subject to license terms.

  8.  * 

  9.  */

  10. 

  11. package java.beans.beancontext;

  12. 

  13. import java.beans.beancontext.BeanContextMembershipEvent;

  14. 

  15. import java.util.EventListener;

  16. 

  17. /**

  18.  * <p>

  19.  * Compliant BeanContexts fire events on this interface when the state of

  20.  * the membership of the BeanContext changes.

  21.  * </p>

  22.  *

  23.  * @author	Laurence P. G. Cable

  24.  * @version	1.9, 02/02/00

  25.  * @since	1.2

  26.  * @see		java.beans.beancontext.BeanContext

  27.  */

  28. 

  29. public interface BeanContextMembershipListener extends EventListener {

  30. 

  31.     /**

  32.      * Called when a child or list of children is added to a 

  33.      * <code>BeanContext</code> that this listener is registered with.

  34.      * @param bcme The <code>BeanContextMembershipEvent</code> 

  35.      * describing the change that occurred.

  36.      */

  37.     void childrenAdded(BeanContextMembershipEvent bcme);

  38. 

  39.     /**

  40.      * Called when a child or list of children is removed 

  41.      * from a <code>BeanContext</code> that this listener 

  42.      * is registered with.

  43.      * @param bcme The <code>BeanContextMembershipEvent</code> 

  44.      * describing the change that occurred.

  45.      */

  46.     void childrenRemoved(BeanContextMembershipEvent bcme);

  47. }