| /* java.beans.beancontext.BeanContextMembershipEvent |
| Copyright (C) 1999, 2004 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath 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 for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package java.beans.beancontext; |
| |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.Iterator; |
| |
| /** |
| * Event fired when children are added to or removed from a <code>BeanContext</code>. |
| * Whether they were added or removed depends entirely on which method |
| * of the listener interface was called. |
| * |
| * @author John Keiser |
| * @since 1.2 |
| * @see java.beans.beancontext.BeanContextMembershipListener |
| */ |
| public class BeanContextMembershipEvent extends BeanContextEvent { |
| /** |
| * The children that were added or removed. |
| */ |
| protected Collection children; |
| |
| /** |
| * Create a new membership event. |
| * @param context the event source. |
| * @param children the children added to or removed from the source. |
| */ |
| public BeanContextMembershipEvent(BeanContext context, Collection children) { |
| super(context); |
| this.children = children; |
| } |
| |
| /** |
| * Create a new membership event. |
| * @param context the event source. |
| * @param children the children added to or removed from the source. |
| */ |
| public BeanContextMembershipEvent(BeanContext context, Object[] children) { |
| super(context); |
| this.children = Arrays.asList(children); |
| } |
| |
| /** |
| * The number of children removed or added. |
| * @return the number of children removed or added. |
| */ |
| public int size() { |
| return children.size(); |
| } |
| |
| /** |
| * An iterator that will step through all the children. |
| * @return an iterator over all the children. |
| */ |
| public Iterator iterator() { |
| return children.iterator(); |
| } |
| |
| /** |
| * An array of the children. |
| * @return an array of the children. |
| */ |
| public Object[] toArray() { |
| return children.toArray(); |
| } |
| |
| /** |
| * Tell whether the <code>Object</code> is one of the children added or removed. |
| * @param child the child to check. |
| * @return whether the <code>Object</code> is added or removed. |
| */ |
| public boolean contains(Object child) { |
| return children.contains(child); |
| } |
| } |