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. 

  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/2004/REC-DOM-Level-3-Core-20040407'>Document Object Model (DOM) Level 3 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. }