1   /*
    2   * Licensed to the Apache Software Foundation (ASF) under one or more
    3   * contributor license agreements.  See the NOTICE file distributed with
    4   * this work for additional information regarding copyright ownership.
    5   * The ASF licenses this file to You under the Apache License, Version 2.0
    6   * (the "License"); you may not use this file except in compliance with
    7   * the License.  You may obtain a copy of the License at
    8   *
    9   *     http://www.apache.org/licenses/LICENSE-2.0
   10   *
   11   * Unless required by applicable law or agreed to in writing, software
   12   * distributed under the License is distributed on an "AS IS" BASIS,
   13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   14   * See the License for the specific language governing permissions and
   15   * limitations under the License.
   16   */
   17   package javax.servlet.http;
   18   
   19   import java.util.EventListener;
   20   
   21   	/** 
   22   	* Implementations of this interface are notified of changes to the 
   23   	* list of active sessions in a web application.
   24   	* To receive notification events, the implementation class
   25   	* must be configured in the deployment descriptor for the web application.
   26   	* @see HttpSessionEvent
   27   	 * @since	v 2.3
   28   	*/
   29   
   30   public interface HttpSessionListener extends EventListener {
   31       
   32   	/** 
   33   	* Notification that a session was created.
   34   	* @param se the notification event
   35   	*/
   36       public void sessionCreated ( HttpSessionEvent se );
   37       
   38   	/** 
   39   	* Notification that a session is about to be invalidated.
   40   	* @param se the notification event
   41   	*/
   42       public void sessionDestroyed ( HttpSessionEvent se );
   43       
   44   }
   45