KickJava   Java API By Example, From Geeks To Geeks.

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


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.util.L10N;
32 import com.caucho.xml.QName;
33
34 import java.util.HashSet JavaDoc;
35
36 /**
37  * Generates programs from patterns.
38  */
39 public class TextItem extends Item {
40   protected final static L10N L = new L10N(TextItem.class);
41
42   private final static QName TEXT_NAME = new QName("#text", "");
43   
44   public final static TextItem TEXT = new TextItem();
45
46   private TextItem()
47   {
48   }
49
50   /**
51    * Returns the first set, the set of element names possible.
52    */
53   public void firstSet(HashSet JavaDoc<QName> set)
54   {
55     set.add(TEXT_NAME);
56   }
57   
58   /**
59    * Text allows the empty match.
60    */
61   public boolean allowEmpty()
62   {
63     return true;
64   }
65   
66   /**
67    * Text repeats
68    */
69   public Item text(String JavaDoc text)
70   {
71     return this;
72   }
73
74
75   /**
76    * Returns the pretty printed syntax.
77    */
78   public String JavaDoc toSyntaxDescription(int depth)
79   {
80     return "text";
81   }
82
83   /**
84    * True for simple syntax.
85    */
86   public boolean isSimpleSyntax()
87   {
88     return true;
89   }
90
91   /**
92    * Returns the hash code for the empty item.
93    */
94   public int hashCode()
95   {
96     return 191;
97   }
98
99   /**
100    * Returns true if the object is an empty item.
101    */
102   public boolean equals(Object JavaDoc o)
103   {
104     if (this == o)
105       return true;
106     
107     if (! (o instanceof TextItem))
108       return false;
109
110     return true;
111   }
112
113   public String JavaDoc toString()
114   {
115     return "TextItem[]";
116   }
117 }
118
119
Popular Tags