https://xerces.apache.org/xerces2-j/: Xerces2 is the next generation of high performance, fully compliant XML parsers in the Apache Xerces family. This new version of Xerces introduces the Xerces Native Interface (XNI), a complete framework for building parser components and configurations that is extremely modular and easy to program. The Apache Xerces2 parser is the reference implementation of XNI but other parser components, configurations, and parsers can be written using the Xerces Native Interface. For complete design and implementation documents, refer to the XNI Manual. Xerces2 is a fully conforming XML Schema 1.0 processor. A partial experimental implementation of the XML Schema 1.1 Structures and Datatypes Working Drafts (December 2009) and an experimental implementation of the XML Schema Definition Language (XSD): Component Designators (SCD) Candidate Recommendation (January 2010) are provided for evaluation. For more information, refer to the XML Schema page. Xerces2 also provides a complete implementation of the Document Object Model Level 3 Core and Load/Save W3C Recommendations and provides a complete implementation of the XML Inclusions (XInclude) W3C Recommendation. It also provides support for OASIS XML Catalogs v1.1. Xerces2 is able to parse documents written according to the XML 1.1 Recommendation, except that it does not yet provide an option to enable normalization checking as described in section 2.13 of this specification. It also handles namespaces according to the XML Namespaces 1.1 Recommendation, and will correctly serialize XML 1.1 documents if the DOM level 3 load/save APIs are in use. 
/*
 * Copyright (c) 2001 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.apache.xerces.dom3.as;


Deprecated:
The ASObjectList interface provides the abstraction of an 
ordered collection of AS nodes, without defining or constraining how this 
collection is implemented. ASObjectList objects in the DOM 
AS are live.

See also the Document Object Model (DOM) Level 3 Abstract Schemas and Load
and Save Specification.
/**
 * @deprecated

 * The <code>ASObjectList</code> interface provides the abstraction of an 
 * ordered collection of AS nodes, without defining or constraining how this 
 * collection is implemented. <code>ASObjectList</code> objects in the DOM 
 * AS are live.
 * <p>See also the <a href='http://www.w3.org/TR/2001/WD-DOM-Level-3-ASLS-20011025'>Document Object Model (DOM) Level 3 Abstract Schemas and Load
and Save Specification</a>.
 */
public interface ASObjectList {
    
The number of ASObjects in the list. The range of valid 
child node indices is 0 to length-1 inclusive.

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

    
Returns the indexth item in the collection. The index 
starts at 0. If index is greater than or equal to the 
number of nodes in the list, this returns null.

Params:
  • index – index into the collection.
Returns:The ASObject at the indexth position 
  in the ASObjectList, or null if that is 
  not a valid index.
/**
     * Returns the <code>index</code>th item in the collection. The index 
     * starts at 0. 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 <code>ASObject</code> at the <code>index</code>th position 
     *   in the <code>ASObjectList</code>, or <code>null</code> if that is 
     *   not a valid index.
     */
    public ASObject item(int index);

}