/*
 * Copyright (c) 2017, 2018 Oracle and/or its affiliates and others.
 * All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package javax.servlet.annotation;

import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

This annotation is used to declare a WebListener. Any class annotated with WebListener must implement one or more of the ServletContextListener, ServletContextAttributeListener, ServletRequestListener, ServletRequestAttributeListener, HttpSessionListener, or HttpSessionAttributeListener, or HttpSessionIdListener interfaces. 
Since:
Servlet 3.0/**
 * This annotation is used to declare a WebListener.
 *
 * Any class annotated with WebListener must implement one or more of the {@link javax.servlet.ServletContextListener},
 * {@link javax.servlet.ServletContextAttributeListener}, {@link javax.servlet.ServletRequestListener},
 * {@link javax.servlet.ServletRequestAttributeListener}, {@link javax.servlet.http.HttpSessionListener}, or
 * {@link javax.servlet.http.HttpSessionAttributeListener}, or {@link javax.servlet.http.HttpSessionIdListener}
 * interfaces.
 * 
 * @since Servlet 3.0
 */
@Target({ ElementType.TYPE })
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface WebListener {
    
Description of the listener
Returns:
description of the listener/**
     * Description of the listener
     *
     * @return description of the listener
     */
    String value() default "";
}