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Java > Open Source Codes > com > caucho > xml > QContentParticle


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.xml;
30
31 import java.io.IOException JavaDoc;
32 import java.util.ArrayList JavaDoc;
33
34 /**
35  * An expression of the DTD grammar.
36  */
37 class QContentParticle {
38   ArrayList JavaDoc<Object JavaDoc> _children = new ArrayList JavaDoc<Object JavaDoc>();
39   int _separator;
40   int _repeat;
41
42   void addChild(Object JavaDoc child)
43   {
44     _children.add(child);
45   }
46
47   /**
48    * Returns the number of children.
49    */
50   public int getChildSize()
51   {
52     return _children.size();
53   }
54   /**
55    * Returns the child specified by the index.
56    */
57   public Object JavaDoc getChild(int index)
58   {
59     return _children.get(index);
60   }
61   /**
62    * Sets the child specified by the index.
63    */
64   public void setChild(int index, Object JavaDoc child)
65   {
66     _children.set(index, child);
67   }
68
69   public void print(XmlPrinter os) throws IOException JavaDoc
70   {
71     os.print("(");
72
73     for (int i = 0; i < _children.size(); i++) {
74       if (i != 0) {
75     if (_separator == ',')
76       os.print(", ");
77     else {
78       os.print(" ");
79       os.print((char) _separator);
80       os.print(" ");
81     }
82       }
83
84       Object JavaDoc child = _children.get(i);
85
86       if (child instanceof QContentParticle)
87     ((QContentParticle) child).print(os);
88       else
89     os.print(String.valueOf(child));
90     }
91
92     os.print(")");
93     if (_repeat != 0)
94       os.print((char) _repeat);
95   }
96 }
97
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