001// Copyright 2004, 2005 The Apache Software Foundation
002//
003// Licensed under the Apache License, Version 2.0 (the "License");
004// you may not use this file except in compliance with the License.
005// You may obtain a copy of the License at
006//
007//     http://www.apache.org/licenses/LICENSE-2.0
008//
009// Unless required by applicable law or agreed to in writing, software
010// distributed under the License is distributed on an "AS IS" BASIS,
011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012// See the License for the specific language governing permissions and
013// limitations under the License.
014
015package org.apache.tapestry.services.impl;
016
017import java.util.Iterator;
018
019import org.apache.hivemind.util.EventListenerList;
020import org.apache.tapestry.event.ResetEventListener;
021import org.apache.tapestry.services.ResetEventHub;
022
023/**
024 * Implementation of the <code>tapestry.ResetEventHub</code>
025 * service.
026 *
027 * @author Howard Lewis Ship
028 * @since 4.0
029 */
030public class ResetEventHubImpl implements ResetEventHub
031{
032    private EventListenerList _listeners = new EventListenerList();
033
034    public void addResetEventListener(ResetEventListener l)
035    {
036        _listeners.addListener(l);
037    }
038
039    public void removeResetEventListener(ResetEventListener l)
040    {
041        _listeners.removeListener(l);
042    }
043
044    public void fireResetEvent()
045    {
046        Iterator i = _listeners.getListeners();
047
048        while (i.hasNext())
049        {
050            ResetEventListener l = (ResetEventListener) i.next();
051
052            l.resetEventDidOccur();
053        }
054    }
055}