01 /*
02 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
03 *
04 * This code is free software; you can redistribute it and/or modify it
05 * under the terms of the GNU General Public License version 2 only, as
06 * published by the Free Software Foundation. Sun designates this
07 * particular file as subject to the "Classpath" exception as provided
08 * by Sun in the LICENSE file that accompanied this code.
09 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
22 * have any questions.
23 */
24
25 /*
26 * This file is available under and governed by the GNU General Public
27 * License version 2 only, as published by the Free Software Foundation.
28 * However, the following notice accompanied the original version of this
29 * file and, per its terms, should not be removed:
30 *
31 * Copyright (c) 2004 World Wide Web Consortium,
32 *
33 * (Massachusetts Institute of Technology, European Research Consortium for
34 * Informatics and Mathematics, Keio University). All Rights Reserved. This
35 * work is distributed under the W3C(r) Software License [1] in the hope that
36 * it will be useful, but WITHOUT ANY WARRANTY; without even the implied
37 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
38 *
39 * [1] http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231
40 */
41
42 package org.w3c.dom;
43
44 /**
45 * The <code>NodeList</code> interface provides the abstraction of an ordered
46 * collection of nodes, without defining or constraining how this collection
47 * is implemented. <code>NodeList</code> objects in the DOM are live.
48 * <p>The items in the <code>NodeList</code> are accessible via an integral
49 * index, starting from 0.
50 * <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>.
51 */
52 public interface NodeList {
53 /**
54 * Returns the <code>index</code>th item in the collection. If
55 * <code>index</code> is greater than or equal to the number of nodes in
56 * the list, this returns <code>null</code>.
57 * @param index Index into the collection.
58 * @return The node at the <code>index</code>th position in the
59 * <code>NodeList</code>, or <code>null</code> if that is not a valid
60 * index.
61 */
62 public Node item(int index);
63
64 /**
65 * The number of nodes in the list. The range of valid child node indices
66 * is 0 to <code>length-1</code> inclusive.
67 */
68 public int getLength();
69
70 }
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