KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > com > caucho > xpath > pattern > NodeArrayListIterator


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.pattern;
30
31 import com.caucho.xpath.ExprEnvironment;
32
33 import org.w3c.dom.Node JavaDoc;
34
35 import java.util.ArrayList JavaDoc;
36
37 /**
38  * Iterates through matching nodes.
39  */
40 public class NodeArrayListIterator extends NodeIterator {
41   protected ArrayList JavaDoc<Node JavaDoc> _list;
42   protected int _position;
43
44   public NodeArrayListIterator(ExprEnvironment env, ArrayList JavaDoc<Node JavaDoc> list)
45   {
46     super(env);
47     
48     _list = list;
49   }
50   
51   /**
52    * Returns the current position.
53    */
54   public int getContextPosition()
55   {
56     return _position;
57   }
58   
59   /**
60    * Returns the current position.
61    */
62   public int getContextSize()
63   {
64     return _list.size();
65   }
66   
67   /**
68    * True if there's more data.
69    */
70   public boolean hasNext()
71   {
72     return _position < _list.size();
73   }
74   
75   /**
76    * Returns the next node.
77    */
78   public Node JavaDoc next()
79   {
80     return nextNode();
81   }
82   
83   /**
84    * Returns the next node.
85    */
86   public Node JavaDoc nextNode()
87   {
88     if (_position < _list.size())
89       return _list.get(_position++);
90     else
91       return null;
92   }
93
94   /**
95    * clones the iterator
96    */
97   public Object JavaDoc clone()
98   {
99     NodeArrayListIterator clone = new NodeArrayListIterator(_env, _list);
100     
101     clone._position = _position;
102
103     return clone;
104   }
105 }
106
Popular Tags