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
9 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 package javax.servlet.http;
19 import java.util.EventListener;
22 * Implementations of this interface are notified when an {@link HttpSession}'s
23 * ID changes. To receive notification events, the implementation class must be
24 * configured in the deployment descriptor for the web application, annotated
25 * with {@link javax.servlet.annotation.WebListener} or registered by calling an
26 * addListener method on the {@link javax.servlet.ServletContext}.
28 * @see HttpSessionEvent
29 * @see HttpServletRequest#changeSessionId()
32 public interface HttpSessionIdListener extends EventListener {
35 * Notification that a session ID has been changed.
37 * @param se the notification event
38 * @param oldSessionId the old session ID
40 public void sessionIdChanged(HttpSessionEvent se, String oldSessionId);