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. 
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 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
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 *      http://www.apache.org/licenses/LICENSE-2.0
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 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
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package org.apache.xerces.xni.grammars;

import org.apache.xerces.xs.XSModel;


Representing a schema grammar. It contains declaration/definitions from
a certain namespace. When a grammar is preparsed, and its grammar type is
XML Schema, it can be casted to this interface. Objects of this interface
can be converted to XSModel, from which further information about components
in this grammar can be obtained.

Author:Sandy Gao, IBM
Version:$Id: XSGrammar.java 570135 2007-08-27 14:15:35Z mrglavas $
/**
 * Representing a schema grammar. It contains declaration/definitions from
 * a certain namespace. When a grammar is preparsed, and its grammar type is
 * XML Schema, it can be casted to this interface. Objects of this interface
 * can be converted to XSModel, from which further information about components
 * in this grammar can be obtained.
 * 
 * @author Sandy Gao, IBM
 *
 * @version $Id: XSGrammar.java 570135 2007-08-27 14:15:35Z mrglavas $
 */
public interface XSGrammar extends Grammar {

    
Return an XSModel that represents components in this schema
grammar and any schema grammars that are imported by this grammar
directly or indirectly.

Returns: an XSModel representing this schema grammar
/**
     * Return an <code>XSModel</code> that represents components in this schema
     * grammar and any schema grammars that are imported by this grammar
     * directly or indirectly.
     * 
     * @return  an <code>XSModel</code> representing this schema grammar
     */
    public XSModel toXSModel();
    
    
Return an XSModel that represents components in this schema
grammar and the grammars in the grammarsparameter,
any schema grammars that are imported by them directly or indirectly.

Returns: an XSModel representing these schema grammars
/**
     * Return an <code>XSModel</code> that represents components in this schema
     * grammar and the grammars in the <code>grammars</code>parameter,
     * any schema grammars that are imported by them directly or indirectly.
     * 
     * @return  an <code>XSModel</code> representing these schema grammars
     */
    public XSModel toXSModel(XSGrammar[] grammars);

} // interface XSGrammar