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>DOMImplementationList</code> interface provides the abstraction
17  * of an ordered collection of DOM implementations, without defining or
18  * constraining how this collection is implemented. The items in the
19  * <code>DOMImplementationList</code> are accessible via an integral index,
20  * 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  * @since DOM Level 3
23  */
24 public interface DOMImplementationList {
25     /**
26      *  Returns the <code>index</code>th item in the collection. If
27      * <code>index</code> is greater than or equal to the number of
28      * <code>DOMImplementation</code>s in the list, this returns
29      * <code>null</code>.
30      * @param index Index into the collection.
31      * @return  The <code>DOMImplementation</code> at the <code>index</code>
32      *   th position in the <code>DOMImplementationList</code>, or
33      *   <code>null</code> if that is not a valid index.
34      */
item(int index)35     public DOMImplementation item(int index);
36 
37     /**
38      *  The number of <code>DOMImplementation</code>s in the list. The range
39      * of valid child node indices is 0 to <code>length-1</code> inclusive.
40      */
getLength()41     public int getLength();
42 
43 }
44