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Java > Open Source Codes > org > apache > ws > jaxme > Observable


1 /*
2  * Copyright 2003, 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 package org.apache.ws.jaxme;
18
19 /** <p>An Observable is an object that may be observed by
20  * another object, the Observer. There may be a single
21  * observer only. If you need more, use a multiplexing
22  * observer.</p>
23  * <p>If the observables state changes, it calls the
24  * observers <code>setObservableState()</code> method.</p>
25  *
26  * @author <a HREF="mailto:joe@ispsoft.de">Jochen Wiedmann</a>
27  * @version $Id: Observable.java,v 1.2 2004/02/16 23:39:48 jochen Exp $
28  */
29 public interface Observable {
30   /** <p>Sets the Observer.</p>
31    */
32   public void setObserver(Observer pObserver);
33   /** <p>Returns the Observer.</p>
34    */
35   public Observer getObserver();
36 }
37
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