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1   /*
2    * $Header$
3    * $Revision$
4    * $Date$
5    *
6    * ====================================================================
7    *
8    * Copyright 2000-2002 bob mcwhirter & James Strachan.
9    * All rights reserved.
10   *
11   * Redistribution and use in source and binary forms, with or without
12   * modification, are permitted provided that the following conditions are
13   * met:
14   * 
15   *   * Redistributions of source code must retain the above copyright
16   *     notice, this list of conditions and the following disclaimer.
17   * 
18   *   * Redistributions in binary form must reproduce the above copyright
19   *     notice, this list of conditions and the following disclaimer in the
20   *     documentation and/or other materials provided with the distribution.
21   * 
22   *   * Neither the name of the Jaxen Project nor the names of its
23   *     contributors may be used to endorse or promote products derived 
24   *     from this software without specific prior written permission.
25   * 
26   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
27   * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28   * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
29   * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
30   * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
31   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
32   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
33   * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
34   * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
35   * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
36   * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37   *
38   * ====================================================================
39   * This software consists of voluntary contributions made by many 
40   * individuals on behalf of the Jaxen Project and was originally 
41   * created by bob mcwhirter <bob@werken.com> and 
42   * James Strachan <jstrachan@apache.org>.  For more information on the 
43   * Jaxen Project, please see <http://www.jaxen.org/>.
44   * 
45   * $Id$
46   */
47  
48  
49  package org.jaxen.jdom;
50  
51  import org.jdom.Element;
52  import org.jdom.Namespace;
53  
54  /** Wrapper for JDOM namespace nodes to give them a parent, as required
55   *  by the XPath data model.
56   *
57   *  @author Erwin Bolwidt
58   */
59  public class XPathNamespace
60  {
61      private Element jdomElement;
62  
63      private Namespace jdomNamespace;
64  
65      /** Creates a namespace-node wrapper for a namespace node that hasn't been
66       *  assigned to an element yet.
67       */
68      public XPathNamespace( Namespace jdomNamespace )
69      {
70          this.jdomNamespace = jdomNamespace;
71      }
72  
73      /** Creates a namespace-node wrapper for a namespace node that is assigned
74       *  to the given JDOM element.
75       */
76      public XPathNamespace( Element jdomElement, Namespace jdomNamespace )
77      {
78          this.jdomElement = jdomElement;
79          this.jdomNamespace = jdomNamespace;
80      }
81  
82      /** Returns the JDOM element from which this namespace node has been 
83       *  retrieved. The result may be null when the namespace node has not yet
84       *  been assigned to an element.
85       */
86      public Element getJDOMElement()
87      {
88          return jdomElement;
89      }
90  
91      /** Sets or changes the element to which this namespace node is assigned.
92       */
93      public void setJDOMElement( Element jdomElement )
94      {
95          this.jdomElement = jdomElement;
96      }
97  
98      /** Returns the JDOM namespace object of this namespace node; the JDOM
99       *  namespace object contains the prefix and URI of the namespace.
100      */
101     public Namespace getJDOMNamespace()
102     {
103         return jdomNamespace;
104     }
105 
106     public String toString()
107     {
108         return ( "[xmlns:" + jdomNamespace.getPrefix() + "=\"" +
109                  jdomNamespace.getURI() + "\", element=" +
110                  jdomElement.getName() + "]" );
111     }
112 }