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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 );
}
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