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Java > Open Source Codes > org > apache > beehive > netui > script > el > util > RequestAttributeMap


1 /*
2  * Copyright 2004 The Apache Software Foundation.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
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  * $Header:$
17  */

18 package org.apache.beehive.netui.script.el.util;
19
20 import java.util.Enumeration JavaDoc;
21 import javax.servlet.ServletRequest JavaDoc;
22
23 /**
24  *
25  */

26 public class RequestAttributeMap
27     extends AbstractAttributeMap
28     implements BindingContext {
29
30     private ServletRequest JavaDoc _request = null;
31
32     public RequestAttributeMap(ServletRequest JavaDoc request) {
33         _request = request;
34     }
35
36     public Object JavaDoc unwrap() {
37         return _request;
38     }
39
40     protected Object JavaDoc getValue(Object JavaDoc key) {
41         return _request.getAttribute(key.toString());
42     }
43
44     protected Object JavaDoc putValue(Object JavaDoc key, Object JavaDoc value) {
45         String JavaDoc strKey = key.toString();
46         Object JavaDoc prev = _request.getAttribute(strKey);
47
48         _request.setAttribute(strKey, value);
49
50         return prev;
51     }
52
53     protected Enumeration JavaDoc getKeysEnumeration() {
54         return _request.getAttributeNames();
55     }
56 }
57
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