--- /dev/null
+/*
+ * 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;
+
+/**
+ * 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 static final long serialVersionUID = 1L;
+
+ private final String name;
+ private final 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;
+ }
+}