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    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   }

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