01: /*
02: * Copyright (c) 2000 World Wide Web Consortium,
03: * (Massachusetts Institute of Technology, Institut National de
04: * Recherche en Informatique et en Automatique, Keio University). All
05: * Rights Reserved. This program is distributed under the W3C's Software
06: * Intellectual Property License. This program is distributed in the
07: * hope that it will be useful, but WITHOUT ANY WARRANTY; without even
08: * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
09: * PURPOSE.
10: * See W3C License http://www.w3.org/Consortium/Legal/ for more details.
11: */
12:
13: package 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/2000/REC-DOM-Level-2-Core-20001113'>Document Object Model (DOM) Level 2 Core Specification</a>.
22: */
23: public 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: }
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