SyncerExecutor.java

/**
* OLAT - Online Learning and Training<br>
* http://www.olat.org
* <p>
* Licensed under the Apache License, Version 2.0 (the "License"); <br>
* you may not use this file except in compliance with the License.<br>
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing,<br>
* software distributed under the License is distributed on an "AS IS" BASIS, <br>
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
* See the License for the specific language governing permissions and <br>
* limitations under the License.
* <p>
* Copyright (c) since 2004 at Multimedia- & E-Learning Services (MELS),<br>
* University of Zurich, Switzerland.
* <hr>
* <a href="http://www.openolat.org">
* OpenOLAT - Online Learning and Training</a><br>
* This file has been modified by the OpenOLAT community. Changes are licensed
* under the Apache 2.0 license as the original file.  
* <p>
*/ 
package org.olat.core.util.coordinate;

/**
 * Description:<br>
 * Callback for executing any operations within a protected region.
 * if you need to return results, then use
 * @see SyncerCallback
 * 
 * <P>
 * Initial Date:  06.11.2007 <br>
 * @author Felix Jost, http://www.goodsolutions.ch
 */
public interface SyncerExecutor {
	/**
	 * 
	 * @return a result object (if any, otherwise null) to be returned to the caller.
	 */
	public void execute();
}