/**********************************************************************************
* $URL: https://source.sakaiproject.org/svn/kernel/trunk/api/src/main/java/org/sakaiproject/tool/api/SessionBindingListener.java $
* $Id: SessionBindingListener.java 105077 2012-02-24 22:54:29Z ottenhoff@longsight.com $
***********************************************************************************
*
* Copyright (c) 2005, 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.tool.api;
import java.util.EventListener;
/**
* <p>
* Causes an object to be notified when it is bound to or unbound from a session. The object is notified by an {@link SessionBindingEvent}object. This may be as a result of a programmer explicitly unbinding an attribute from a session, due to a session
* being invalidated, or due to a session timing out.
* </p>
* <p>
* (Based on HttpSessionBindingListener from the Servlet API).
* </p>
*/
public interface SessionBindingListener extends EventListener
{
/**
* Notifies the object that it is being bound to a session.
*
* @param event
* the event that identifies the session
*/
void valueBound(SessionBindingEvent event);
/**
* Notifies the object that it is being unbound from a session.
*
* @param event
* the event that identifies the session
*/
void valueUnbound(SessionBindingEvent event);
}