KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > com > caucho > relaxng > pattern > ZeroOrMorePattern


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.pattern;
30
31 import com.caucho.relaxng.RelaxException;
32 import com.caucho.relaxng.program.Item;
33 import com.caucho.relaxng.program.ZeroOrMoreItem;
34
35 /**
36  * Relax one or more pattern
37  */
38 public class ZeroOrMorePattern extends Pattern {
39   private GroupPattern _patterns = new GroupPattern();
40
41   
42   /**
43    * Creates a new zero-or-more pattern.
44    */
45   public ZeroOrMorePattern()
46   {
47   }
48
49   /**
50    * Creates a new zero-or-more pattern.
51    */
52   public ZeroOrMorePattern(Pattern pattern)
53     throws RelaxException
54   {
55     _patterns.addChild(pattern);
56   }
57
58   /**
59    * Returns the Relax schema name.
60    */
61   public String JavaDoc getTagName()
62   {
63     return "zeroOrMore";
64   }
65
66   /**
67    * Adds an element.
68    */
69   public void addChild(Pattern child)
70     throws RelaxException
71   {
72     _patterns.addChild(child);
73   }
74
75   /**
76    * returns the group.
77    */
78   public Pattern getPatterns()
79   {
80     return _patterns;
81   }
82
83   /**
84    * Creates the production item.
85    */
86   public Item createItem(GrammarPattern grammar)
87     throws RelaxException
88   {
89     return new ZeroOrMoreItem(_patterns.createItem(grammar));
90   }
91
92   /**
93    * Returns a string for the production.
94    */
95   public String JavaDoc toProduction()
96   {
97     return "(" + _patterns.toProduction() + ")*";
98   }
99
100   public int hashCode()
101   {
102     return 91 + _patterns.hashCode();
103   }
104
105   public boolean equals(Object JavaDoc o)
106   {
107     if (this == o)
108       return true;
109
110     if (! (o instanceof ZeroOrMorePattern))
111       return false;
112
113     ZeroOrMorePattern pattern = (ZeroOrMorePattern) o;
114
115     return _patterns.equals(pattern._patterns);
116   }
117
118   /**
119    * Debugging.
120    */
121   public String JavaDoc toString()
122   {
123     return "ZeroOrMorePattern" + _patterns;
124   }
125 }
126
127
Popular Tags