/*
* Copyright (c) 2004 World Wide Web Consortium,
*
* (Massachusetts Institute of Technology, European Research Consortium for
* Informatics and Mathematics, Keio University). All Rights Reserved. This
* work is distributed under the W3C(r) Software License [1] in the hope that
* it will be useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* [1] http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231
*/
package org.w3c.dom;
/**
* The <code>DOMImplementationList</code> interface provides the abstraction
* of an ordered collection of DOM implementations, without defining or
* constraining how this collection is implemented. The items in the
* <code>DOMImplementationList</code> are accessible via an integral index,
* starting from 0.
* <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>.
* @since DOM Level 3
*/
public interface DOMImplementationList {
/**
* Returns the <code>index</code>th item in the collection. If
* <code>index</code> is greater than or equal to the number of
* <code>DOMImplementation</code>s in the list, this returns
* <code>null</code>.
* @param index Index into the collection.
* @return The <code>DOMImplementation</code> at the <code>index</code>
* th position in the <code>DOMImplementationList</code>, or
* <code>null</code> if that is not a valid index.
*/
public DOMImplementation item(int index);
/**
* The number of <code>DOMImplementation</code>s in the list. The range
* of valid child node indices is 0 to <code>length-1</code> inclusive.
*/
public int getLength();
}