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Java > Open Source Codes > com > caucho > relaxng > program > NsNameItem


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.relaxng.program;
30
31 import com.caucho.xml.QName;
32
33 import java.util.HashSet JavaDoc;
34
35 /**
36  * Matches names.
37  */
38 public class NsNameItem extends NameClassItem {
39   private String JavaDoc _ns;
40
41   private NameClassItem _except;
42
43   public NsNameItem(String JavaDoc ns)
44   {
45     _ns = ns;
46   }
47
48   public void setExcept(NameClassItem except)
49   {
50     _except = except;
51   }
52     
53   /**
54    * Adds to the first set, the set of element names possible.
55    */
56   public void firstSet(HashSet JavaDoc<QName> set)
57   {
58     set.add(new QName("*", _ns));
59   }
60
61   /**
62    * Returns true if the name matches.
63    */
64   public boolean matches(QName name)
65   {
66     if (! _ns.equals(name.getNamespaceURI()))
67       return false;
68     else if (_except != null && _except.matches(name))
69       return false;
70     else
71       return true;
72   }
73
74   /**
75    * Returns the pretty printed syntax.
76    */
77   public String JavaDoc toSyntaxDescription(String JavaDoc prefix)
78   {
79     if (_except != null) {
80       if (prefix.equals(""))
81     return "<{" + _ns + "}:* -" + _except.toSyntaxDescription(" ") + ">";
82       else
83     return prefix + "(" + "{" + _ns + "}:* -" + _except.toSyntaxDescription(" ") + ")";
84     }
85     else if (prefix.equals(""))
86       return "<{" + _ns + "}:*>";
87     else
88       return prefix + "{" + _ns + "}:*";
89   }
90
91   public int hashCode()
92   {
93     return _ns.hashCode();
94   }
95   
96   public boolean equals(Object JavaDoc o)
97   {
98     if (this == o)
99       return true;
100
101     if (! (o instanceof NsNameItem))
102       return false;
103
104     NsNameItem name = (NsNameItem) o;
105
106     if (! _ns.equals(name._ns))
107       return false;
108
109     if (_except == null)
110       return name._except == null;
111     else
112       return _except.equals(name._except);
113   }
114 }
115
116
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