1/*
2 * Copyright (c) 2004 World Wide Web Consortium,
3 *
4 * (Massachusetts Institute of Technology, European Research Consortium for
5 * Informatics and Mathematics, Keio University). All Rights Reserved. This
6 * work is distributed under the W3C(r) Software License [1] in the hope that
7 * it will be useful, but WITHOUT ANY WARRANTY; without even the implied
8 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
9 *
10 * [1] http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231
11 */
12
13package org.w3c.dom;
14
15/**
16 * The <code>NodeList</code> interface provides the abstraction of an ordered
17 * collection of nodes, without defining or constraining how this collection
18 * is implemented. <code>NodeList</code> objects in the DOM are live.
19 * <p>The items in the <code>NodeList</code> are accessible via an integral
20 * index, starting from 0.
21 * <p>See also the <a href='http://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407'>Document Object Model (DOM) Level 3 Core Specification</a>.
22 */
23public interface NodeList {
24    /**
25     * Returns the <code>index</code>th item in the collection. If
26     * <code>index</code> is greater than or equal to the number of nodes in
27     * the list, this returns <code>null</code>.
28     * @param index Index into the collection.
29     * @return The node at the <code>index</code>th position in the
30     *   <code>NodeList</code>, or <code>null</code> if that is not a valid
31     *   index.
32     */
33    public Node item(int index);
34
35    /**
36     * The number of nodes in the list. The range of valid child node indices
37     * is 0 to <code>length-1</code> inclusive.
38     */
39    public int getLength();
40
41}
42