001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 */ 019 020 // 021 // This source code implements specifications defined by the Java 022 // Community Process. In order to remain compliant with the specification 023 // DO NOT add / change / or delete method signatures! 024 // 025 026 package javax.servlet.http; 027 028 import java.util.EventListener; 029 030 /** 031 * Objects that are bound to a session may listen to container 032 * events notifying them that sessions will be passivated and that 033 * session will be activated. A container that migrates session between VMs 034 * or persists sessions is required to notify all attributes bound to sessions 035 * implementing HttpSessionActivationListener. 036 * 037 * @since Servlet 2.3 038 * 039 * @version $Rev: 467553 $ $Date: 2006-10-25 06:01:51 +0200 (Mi, 25. Okt 2006) $ 040 */ 041 public interface HttpSessionActivationListener extends EventListener { 042 /** 043 * Notification that the session is about to be passivated. 044 */ 045 public void sessionWillPassivate(HttpSessionEvent se); 046 047 /** 048 * Notification that the session has just been activated. 049 */ 050 public void sessionDidActivate(HttpSessionEvent se); 051 } 052