1 /*
   2  * Copyright (c) 1997, 1999, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package java.beans.beancontext;
  27 
  28 import java.beans.beancontext.BeanContextMembershipEvent;
  29 
  30 import java.util.EventListener;
  31 
  32 /**
  33  * <p>
  34  * Compliant BeanContexts fire events on this interface when the state of
  35  * the membership of the BeanContext changes.
  36  * </p>
  37  *
  38  * @author      Laurence P. G. Cable
  39  * @since       1.2
  40  * @see         java.beans.beancontext.BeanContext
  41  */
  42 
  43 public interface BeanContextMembershipListener extends EventListener {
  44 
  45     /**
  46      * Called when a child or list of children is added to a
  47      * <code>BeanContext</code> that this listener is registered with.
  48      * @param bcme The <code>BeanContextMembershipEvent</code>
  49      * describing the change that occurred.
  50      */
  51     void childrenAdded(BeanContextMembershipEvent bcme);
  52 
  53     /**
  54      * Called when a child or list of children is removed
  55      * from a <code>BeanContext</code> that this listener
  56      * is registered with.
  57      * @param bcme The <code>BeanContextMembershipEvent</code>
  58      * describing the change that occurred.
  59      */
  60     void childrenRemoved(BeanContextMembershipEvent bcme);
  61 }
--- EOF ---