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/*
 * The contents of this file are subject to the terms
 * of the Common Development and Distribution License
 * (the "License").  You may not use this file except
 * in compliance with the License.
 *
 * You can obtain a copy of the license at
 * glassfish/bootstrap/legal/CDDLv1.0.txt or
 * https://glassfish.dev.java.net/public/CDDLv1.0.html.
 * See the License for the specific language governing
 * permissions and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL
 * HEADER in each file and include the License file at
 * glassfish/bootstrap/legal/CDDLv1.0.txt.  If applicable,
 * add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your
 * own identifying information: Portions Copyright [yyyy]
 * [name of copyright owner]
 *
 * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
 *
 * Portions Copyright Apache Software Foundation.
 */

package javax.servlet;


    /** 
      * This is the event class for notifications of changes to the 
      * attributes of the servlet request in an application.
      * @see ServletRequestAttributeListener
      * @since	Servlet 2.4
      */

public class ServletRequestAttributeEvent extends ServletRequestEvent { 
    private String name;
    private Object value;

     /** Construct a ServletRequestAttributeEvent giving the servlet context
      * of this web application, the ServletRequest whose attributes are
      * changing and the name and value of the attribute.
      *
      * @param sc		the ServletContext that is sending the event.
      * @param request		the ServletRequest that is sending the event.
      * @param name		the name of the request attribute.
      * @param value		the value of the request attribute.
      */
    public ServletRequestAttributeEvent(ServletContext sc, ServletRequest request, String name, Object value) {
        super(sc, request);
        this.name = name;
        this.value = value;
    }

    /**
      * Return the name of the attribute that changed on the ServletRequest.
      *
      * @return		the name of the changed request attribute
      */
    public String getName() {
        return this.name;
    }

    /**
      * Returns the value of the attribute that has been added, removed or 
      * replaced. If the attribute was added, this is the value of the 
      * attribute. If the attribute was removed, this is the value of the 
      * removed attribute. If the attribute was replaced, this is the old 
      * value of the attribute.
      *
      * @return		the value of the changed request attribute
      */
    public Object getValue() {
        return this.value;   
    }
}