1 2 3 /* 4 * The contents of this file are subject to the terms 5 * of the Common Development and Distribution License 6 * (the "License"). You may not use this file except 7 * in compliance with the License. 8 * 9 * You can obtain a copy of the license at 10 * glassfish/bootstrap/legal/CDDLv1.0.txt or 11 * https://glassfish.dev.java.net/public/CDDLv1.0.html. 12 * See the License for the specific language governing 13 * permissions and limitations under the License. 14 * 15 * When distributing Covered Code, include this CDDL 16 * HEADER in each file and include the License file at 17 * glassfish/bootstrap/legal/CDDLv1.0.txt. If applicable, 18 * add the following below this CDDL HEADER, with the 19 * fields enclosed by brackets "[]" replaced with your 20 * own identifying information: Portions Copyright [yyyy] 21 * [name of copyright owner] 22 * 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * 25 * Portions Copyright Apache Software Foundation. 26 */ 27 28 package javax.servlet.http; 29 30 import java.util.EventListener; 31 32 /** This listener interface can be implemented in order to 33 * get notifications of changes to the attribute lists of sessions within 34 * this web application. 35 * @since v 2.3 36 */ 37 38 public interface HttpSessionAttributeListener extends EventListener { 39 /** Notification that an attribute has been added to a session. Called after the attribute is added.*/ 40 public void attributeAdded ( HttpSessionBindingEvent se ); 41 /** Notification that an attribute has been removed from a session. Called after the attribute is removed. */ 42 public void attributeRemoved ( HttpSessionBindingEvent se ); 43 /** Notification that an attribute has been replaced in a session. Called after the attribute is replaced. */ 44 public void attributeReplaced ( HttpSessionBindingEvent se ); 45 46 } 47