| /******************************************************************************* |
| * Copyright (c) 2007 Oracle Corporation. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Oracle - initial API and implementation |
| * |
| ********************************************************************************/ |
| package org.eclipse.jst.jsf.common.metadata.internal; |
| |
| /** |
| * Allows {@link IMetaDataObserver}s to observe changes. |
| * Experimental. |
| * |
| */ |
| public interface IMetaDataObservable { |
| /** |
| * Add the observer to the set of observers. Has no effect if |
| * the same observer is already registered |
| * |
| * @param observer |
| */ |
| public void addObserver(IMetaDataObserver observer); |
| |
| /** |
| * Remove the observer from the set of observers. Has no effect |
| * if observer was not already registered. |
| * |
| * @param observer must not be null |
| */ |
| public void removeObserver(IMetaDataObserver observer); |
| } |
