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CookCC - a Lexer / Parser (LALR(1)) Project

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/*
 * 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 DOMImplementationList interface provides the abstraction 
 * of an ordered collection of DOM implementations, without defining or 
 * constraining how this collection is implemented. The items in the 
 * DOMImplementationList are accessible via an integral index, 
 * starting from 0. 
 * See also the Document Object Model (DOM) Level 3 Core Specification.
 * @since DOM Level 3
 */
public interface DOMImplementationList {
    /**
     *  Returns the indexth item in the collection. If 
     * index is greater than or equal to the number of 
     * DOMImplementations in the list, this returns 
     * null. 
     * @param index Index into the collection.
     * @return  The DOMImplementation at the index
     *   th position in the DOMImplementationList, or 
     *   null if that is not a valid index. 
     */
    public DOMImplementation item(int index);

    /**
     *  The number of DOMImplementations in the list. The range 
     * of valid child node indices is 0 to length-1 inclusive. 
     */
    public int getLength();

}