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1   /*
2    * $Id: ProxyAttrAdapter.java 651946 2008-04-27 13:41:38Z apetrelli $
3    *
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *  http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  package org.apache.struts2.views.xslt;
23  
24  import org.w3c.dom.Attr;
25  import org.w3c.dom.DOMException;
26  import org.w3c.dom.Element;
27  import org.w3c.dom.TypeInfo;
28  
29  /***
30   * ProxyAttrAdapter is a pass-through adapter for objects which already
31   * implement the Attr interface.  All methods are proxied to the underlying
32   * Node except node traversal (e.g. getParent()) related methods which
33   * are implemented by the abstract adapter node to work with the parent adapter.
34   */
35  public class ProxyAttrAdapter extends ProxyNodeAdapter implements Attr {
36  
37      public ProxyAttrAdapter(AdapterFactory factory, AdapterNode parent, Attr value) {
38          super(factory, parent, value);
39      }
40  
41      // convenience
42      protected Attr attr() {
43          return (Attr) getPropertyValue();
44      }
45  
46      // Proxied Attr methods
47  
48      public String getName() {
49          return attr().getName();
50      }
51  
52      public boolean getSpecified() {
53          return attr().getSpecified();
54      }
55  
56      public String getValue() {
57          return attr().getValue();
58      }
59  
60      public void setValue(String string) throws DOMException {
61          throw new UnsupportedOperationException();
62      }
63  
64      public Element getOwnerElement() {
65          return (Element) getParent();
66      }
67  
68      // DOM level 3
69  
70      public TypeInfo getSchemaTypeInfo() {
71          throw operationNotSupported();
72      }
73  
74      public boolean isId() {
75          throw operationNotSupported();
76      }
77  
78      // end DOM level 3
79  
80      // End Proxied Attr methods
81  
82      public String toString() {
83          return "ProxyAttribute for: " + attr();
84      }
85  }
86