Source Code Cross Referenced for ServletRequestAttributeEvent.java in  » 6.0-JDK-Core » Servlet-API-by-tomcat » javax » servlet » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Core » Servlet API by tomcat » javax.servlet 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


01        /*
02         * Copyright 2004 The Apache Software Foundation
03         *
04         * Licensed under the Apache License, Version 2.0 (the "License");
05         * you may not use this file except in compliance with the License.
06         * You may obtain a copy of the License at
07         *
08         *     http://www.apache.org/licenses/LICENSE-2.0
09         *
10         * Unless required by applicable law or agreed to in writing, software
11         * distributed under the License is distributed on an "AS IS" BASIS,
12         * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13         * See the License for the specific language governing permissions and
14         * limitations under the License.
15         */
16        package javax.servlet;
17
18        /** 
19         * This is the event class for notifications of changes to the 
20         * attributes of the servlet request in an application.
21         * @see ServletRequestAttributeListener
22         * @since	Servlet 2.4
23         */
24
25        public class ServletRequestAttributeEvent extends ServletRequestEvent {
26            private String name;
27            private Object value;
28
29            /** Construct a ServletRequestAttributeEvent giving the servlet context
30             * of this web application, the ServletRequest whose attributes are
31             * changing and the name and value of the attribute.
32             *
33             * @param sc		the ServletContext that is sending the event.
34             * @param request		the ServletRequest that is sending the event.
35             * @param name		the name of the request attribute.
36             * @param value		the value of the request attribute.
37             */
38            public ServletRequestAttributeEvent(ServletContext sc,
39                    ServletRequest request, String name, Object value) {
40                super (sc, request);
41                this .name = name;
42                this .value = value;
43            }
44
45            /**
46             * Return the name of the attribute that changed on the ServletRequest.
47             *
48             * @return		the name of the changed request attribute
49             */
50            public String getName() {
51                return this .name;
52            }
53
54            /**
55             * Returns the value of the attribute that has been added, removed or 
56             * replaced. If the attribute was added, this is the value of the 
57             * attribute. If the attribute was removed, this is the value of the 
58             * removed attribute. If the attribute was replaced, this is the old 
59             * value of the attribute.
60             *
61             * @return		the value of the changed request attribute
62             */
63            public Object getValue() {
64                return this.value;
65            }
66        }
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