/*
 * Copyright 2003, 2004  The Apache Software Foundation
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.

 */
package org.apache.ws.jaxme;

/** <p>An Observable is an object that may be observed by
 * another object, the Observer. There may be a single
 * observer only. If you need more, use a multiplexing
 * observer.</p>
 * <p>If the observables state changes, it calls the
 * observers <code>setObservableState()</code> method.</p>
 * 
 * @author <a href="mailto:joe@ispsoft.de">Jochen Wiedmann</a>
 * @version $Id: Observable.java 231785 2004-02-16 23:39:59Z jochen $
 */
public interface Observable {
  /** <p>Sets the Observer.</p>
   */
  public void setObserver(Observer pObserver);
  /** <p>Returns the Observer.</p>
   */
  public Observer getObserver();
}
