/**
* 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.extensions;
import org.olat.core.configuration.ConfigOnOff;
import org.olat.core.gui.UserRequest;
/**
* Description:<br>
* TODO: Felix Class Description for Extension
*
* <P>
* Initial Date: 02.08.2005 <br>
* @author Felix
*/
public interface Extension extends ConfigOnOff, Comparable<Extension> {
/**
* Check with userrequest if extension will be available to this user!
* also does isEnabled(). this is better than to loop over all extensions and do checks locally!
* returns null if not allowed to access or disabled
* @param extensionPoint
* @param ureq
* @return
*/
public ExtensionElement getExtensionFor(String extensionPoint, UserRequest ureq);
/**
* returns the order-property of this extension
* @return
*/
public int getOrder();
/**
* returns a String that is unique for this extension
* @return
*/
public String getUniqueExtensionID();
}