1/*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
3 *
4 * This code is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License version 2 only, as
6 * published by the Free Software Foundation.  Oracle designates this
7 * particular file as subject to the "Classpath" exception as provided
8 * by Oracle in the LICENSE file that accompanied this code.
9 *
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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * 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) 2000 World Wide Web Consortium,
32 * (Massachusetts Institute of Technology, Institut National de
33 * Recherche en Informatique et en Automatique, Keio University). All
34 * Rights Reserved. This program is distributed under the W3C's Software
35 * Intellectual Property License. This program is distributed in the
36 * hope that it will be useful, but WITHOUT ANY WARRANTY; without even
37 * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
38 * PURPOSE. See W3C License http://www.w3.org/Consortium/Legal/ for more
39 * details.
40 */
41
42package org.w3c.dom.html;
43
44import org.w3c.dom.Node;
45
46/**
47 *  An <code>HTMLCollection</code> is a list of nodes. An individual node may
48 * be accessed by either ordinal index or the node's<code>name</code> or
49 * <code>id</code> attributes.  Note: Collections in the HTML DOM are assumed
50 * to be  live meaning that they are automatically updated when the
51 * underlying document is changed.
52 * <p>See also the <a href='http://www.w3.org/TR/2000/CR-DOM-Level-2-20000510'>Document Object Model (DOM) Level 2 Specification</a>.
53 *
54 * @since 1.4, DOM Level 2
55 */
56public interface HTMLCollection {
57    /**
58     *  This attribute specifies the length or  size of the list.
59     */
60    public int getLength();
61
62    /**
63     *  This method retrieves a node specified by ordinal index. Nodes are
64     * numbered in tree order (depth-first traversal order).
65     * @param index  The index of the node to be fetched. The index origin is
66     *   0.
67     * @return  The <code>Node</code> at the corresponding position upon
68     *   success. A value of <code>null</code> is returned if the index is
69     *   out of range.
70     */
71    public Node item(int index);
72
73    /**
74     *  This method retrieves a <code>Node</code> using a name. It first
75     * searches for a <code>Node</code> with a matching <code>id</code>
76     * attribute. If it doesn't find one, it then searches for a
77     * <code>Node</code> with a matching <code>name</code> attribute, but
78     * only on those elements that are allowed a name attribute.
79     * @param name  The name of the <code>Node</code> to be fetched.
80     * @return  The <code>Node</code> with a <code>name</code> or
81     *   <code>id</code> attribute whose value corresponds to the specified
82     *   string. Upon failure (e.g., no node with this name exists), returns
83     *   <code>null</code> .
84     */
85    public Node namedItem(String name);
86
87}
88