/**********************************************************************************
* $URL: https://source.sakaiproject.org/svn/kernel/trunk/api/src/main/java/org/sakaiproject/entity/api/ContextObserver.java $
* $Id: ContextObserver.java 105077 2012-02-24 22:54:29Z ottenhoff@longsight.com $
***********************************************************************************
*
* Copyright (c) 2006, 2008 Sakai Foundation
*
* Licensed under the Educational Community 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.opensource.org/licenses/ECL-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.sakaiproject.entity.api;
/**
* <p>
* Services which implement ContextObserver declare themselves as wanting context change notification.
* </p>
*/
public interface ContextObserver
{
/**
* This is called when a context is first created.
*
* @param context
* The context id.
* @param toolPlacement
* true if one of your tool is placed in the context.
*/
void contextCreated(String context, boolean toolPlacement);
/**
* This is called when a context is changed.
*
* @param context
* The context id.
* @param toolPlacement
* true if one of your tool is placed in the context after the change.
*/
void contextUpdated(String context, boolean toolPlacement);
/**
* This is called when a context is being deleted.
*
* @param context
* The context id.
* @param toolPlacement
* true if one of your tool is placed in the context after the change.
*/
void contextDeleted(String context, boolean toolPlacement);
/**
* Provide the string array of tool ids, for tools that we need context preperation for.
*
* @return
*/
String[] myToolIds();
}