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Java > Open Source Codes > com > caucho > xpath > NamespaceContext


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  * Free SoftwareFoundation, Inc.
23  * 59 Temple Place, Suite 330
24  * Boston, MA 02111-1307 USA
25  *
26  * @author Scott Ferguson
27  */
28
29 package com.caucho.xpath;
30
31 public class NamespaceContext {
32   private NamespaceContext prev;
33   private String JavaDoc prefix;
34   private String JavaDoc url;
35
36   public NamespaceContext(NamespaceContext prev, String JavaDoc prefix, String JavaDoc url)
37   {
38     this.prev = prev;
39     this.prefix = prefix.intern();
40     this.url = url.intern();
41   }
42
43   public NamespaceContext getPrev()
44   {
45     return prev;
46   }
47
48   public String JavaDoc getPrefix()
49   {
50     return prefix;
51   }
52
53   public String JavaDoc getUrl()
54   {
55     return url;
56   }
57
58   public static String JavaDoc find(NamespaceContext ns, String JavaDoc prefix)
59   {
60     for (; ns != null; ns = ns.prev) {
61       if (ns.prefix.equals(prefix))
62         return ns.url;
63     }
64
65     return null;
66   }
67 }
68
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