| /* |
| * Copyright 2004 The Apache Software Foundation |
| * |
| * Licensed under the Apache 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.apache.org/licenses/LICENSE-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 javax.servlet.http; |
| |
| import java.util.EventListener; |
| |
| /** This listener interface can be implemented in order to |
| * get notifications of changes to the attribute lists of sessions within |
| * this web application. |
| * @since v 2.3 |
| */ |
| |
| public interface HttpSessionAttributeListener extends EventListener { |
| /** Notification that an attribute has been added to a session. Called after the attribute is added.*/ |
| public void attributeAdded ( HttpSessionBindingEvent se ); |
| /** Notification that an attribute has been removed from a session. Called after the attribute is removed. */ |
| public void attributeRemoved ( HttpSessionBindingEvent se ); |
| /** Notification that an attribute has been replaced in a session. Called after the attribute is replaced. */ |
| public void attributeReplaced ( HttpSessionBindingEvent se ); |
| |
| } |
| |