xref: /dalvik/libcore/xml/src/main/java/org/w3c/dom/NodeList.java

/*
 * Copyright (c) 2000 World Wide Web Consortium,
 * (Massachusetts Institute of Technology, Institut National de
 * Recherche en Informatique et en Automatique, Keio University). All
 * Rights Reserved. This program is distributed under the W3C's Software
 * Intellectual Property License. This program is distributed 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.
 * See W3C License http://www.w3.org/Consortium/Legal/ for more details.
 */

package org.w3c.dom;

// BEGIN android-note
// Cleaned up @param tags that seemed to be missing spaces between
// the parameter name and the start of the description.
// END android-note

//BEGIN android-note
//Filled some gaps in the documentation and refactored parts of the existing
//documentation to make the Doclet happy.
//END android-note

/**
 * The <code>NodeList</code> interface provides the abstraction of an ordered
 * collection of nodes, without defining or constraining how this collection
 * is implemented. <code>NodeList</code> objects in the DOM are live.
 * <p>The items in the <code>NodeList</code> are accessible via an integral
 * index, starting from 0.
 * <p>See also the <a href='http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113'>Document Object Model (DOM) Level 2 Core Specification</a>.
 */
public interface NodeList {
    /**
     * Returns the <code>index</code>th item in the collection. If
     * <code>index</code> is greater than or equal to the number of nodes in
     * the list, this returns <code>null</code>.
     * @param index Index into the collection.
     * @return The node at the <code>index</code>th position in the
     *   <code>NodeList</code>, or <code>null</code> if that is not a valid
     *   index.
     */
    public Node item(int index);

    /**
     * The number of nodes in the list. The range of valid child node indices
     * is 0 to <code>length-1</code> inclusive.
     *
     * @return the length of the list.
     */
    public int getLength();

}