1 /*
2 * Copyright 2004-2009 the original author or authors.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 package org.springmodules.validation.util.xml;
18
19 import java.util.NoSuchElementException;
20
21 import org.springmodules.validation.util.collection.ReadOnlyIterator;
22 import org.w3c.dom.Node;
23 import org.w3c.dom.NodeList;
24
25 /**
26 * Iterates over the direct child nodes of the given node.
27 *
28 * @author Uri Boness
29 */
30 public class ChildNodesIterator extends ReadOnlyIterator {
31
32 private NodeList nodes;
33
34 private int length;
35
36 private int index;
37
38 public ChildNodesIterator(Node node) {
39 nodes = node.getChildNodes();
40 length = nodes.getLength();
41 index = 0;
42 }
43
44 public boolean hasNext() {
45 return index < length;
46 }
47
48 public Object next() {
49 if (!hasNext()) {
50 throw new NoSuchElementException();
51 }
52 Object element = nodes.item(index);
53 index++;
54 return element;
55 }
56
57 }