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) 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
42 package org.w3c.dom.html;
43
44 import 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 public interface HTMLCollection {
55 /**
56 * This attribute specifies the length or size of the list.
57 */
58 public int getLength();
59
60 /**
61 * This method retrieves a node specified by ordinal index. Nodes are
62 * numbered in tree order (depth-first traversal order).
63 * @param index The index of the node to be fetched. The index origin is
64 * 0.
65 * @return The <code>Node</code> at the corresponding position upon
66 * success. A value of <code>null</code> is returned if the index is
67 * out of range.
68 */
69 public Node item(int index);
70
71 /**
72 * This method retrieves a <code>Node</code> using a name. It first
73 * searches for a <code>Node</code> with a matching <code>id</code>
74 * attribute. If it doesn't find one, it then searches for a
75 * <code>Node</code> with a matching <code>name</code> attribute, but
76 * only on those elements that are allowed a name attribute.
77 * @param name The name of the <code>Node</code> to be fetched.
78 * @return The <code>Node</code> with a <code>name</code> or
79 * <code>id</code> attribute whose value corresponds to the specified
80 * string. Upon failure (e.g., no node with this name exists), returns
81 * <code>null</code> .
82 */
83 public Node namedItem(String name);
84
85 }
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