1   /*
2    * Copyright 2000-2001,2004 The Apache Software Foundation.
3    * 
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    * 
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    * 
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  /* 
18  
19   */
20  
21  package org.apache.wsrp4j.util;
22  
23  /**
24   * 
25   * @author <a href="mailto:Ralf.Altrichter@de.ibm.com">Ralf Altrichter</a>
26   *
27   * @version 1.0
28   */
29  public interface StateChangedService {
30  
31      /**
32       * Adds a new StateChangedListener to the internal list. All registered
33       * Listeners will receive a notification, if the stateChanged() method 
34       * is called. 
35       * 
36       * @param changeListener StateChangedListener
37       */
38      public abstract void addListener(StateChangedListener changeListener);
39  
40      /**
41       * Must be called, if stateChanged occoured
42       */
43      public abstract void stateChanged();
44  
45  }