/*
 * Copyright 1999-2004 The Apache Software Foundation.
 * 
 * Licensed 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
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/*
 * $Log: XMLContentModel.hpp,v $
 * Revision 1.6  2004/09/16 13:32:05  amassari
 * Updated error message for UPA to also state the complex type that is failing the test
 *
 * Revision 1.5  2004/09/08 13:55:58  peiyongz
 * Apache License Version 2.0
 *
 * Revision 1.4  2003/05/15 18:26:07  knoaman
 * Partial implementation of the configurable memory manager.
 *
 * Revision 1.3  2003/03/07 18:08:10  tng
 * Return a reference instead of void for operator=
 *
 * Revision 1.2  2002/11/04 15:00:21  tng
 * C++ Namespace Support.
 *
 * Revision 1.1.1.1  2002/02/01 22:21:51  peiyongz
 * sane_include
 *
 * Revision 1.14  2001/11/21 14:30:13  knoaman
 * Fix for UPA checking.
 *
 * Revision 1.13  2001/08/21 16:06:10  tng
 * Schema: Unique Particle Attribution Constraint Checking.
 *
 * Revision 1.12  2001/08/13 15:06:38  knoaman
 * update <any> validation.
 *
 * Revision 1.11  2001/05/28 20:53:35  tng
 * Schema: move static data gInvalidTrans, gEOCFakeId, gEpsilonFakeId to XMLContentModel for others to access
 *
 * Revision 1.10  2001/05/11 13:25:31  tng
 * Copyright update.
 *
 * Revision 1.9  2001/05/03 21:02:23  tng
 * Schema: Add SubstitutionGroupComparator and update exception messages.  By Pei Yong Zhang.
 *
 * Revision 1.8  2001/04/19 18:16:50  tng
 * Schema: SchemaValidator update, and use QName in Content Model
 *
 * Revision 1.7  2001/03/21 21:56:01  tng
 * Schema: Add Schema Grammar, Schema Validator, and split the DTDValidator into DTDValidator, DTDScanner, and DTDGrammar.
 *
 * Revision 1.6  2001/02/27 14:48:30  tng
 * Schema: Add CMAny and ContentLeafNameTypeVector, by Pei Yong Zhang
 *
 * Revision 1.5  2000/03/02 19:54:24  roddey
 * This checkin includes many changes done while waiting for the
 * 1.1.0 code to be finished. I can't list them all here, but a list is
 * available elsewhere.
 *
 * Revision 1.4  2000/02/24 20:00:23  abagchi
 * Swat for removing Log from API docs
 *
 * Revision 1.3  2000/02/15 01:21:30  roddey
 * Some initial documentation improvements. More to come...
 *
 * Revision 1.2  2000/02/06 07:47:48  rahulj
 * Year 2K copyright swat.
 *
 * Revision 1.1.1.1  1999/11/09 01:08:30  twl
 * Initial checkin
 *
 * Revision 1.2  1999/11/08 20:44:37  rahul
 * Swat for adding in Product name and CVS comment log variable.
 *
 */


#if !defined(CONTENTMODEL_HPP)
#define CONTENTMODEL_HPP

#include <xercesc/util/XMemory.hpp>
#include <xercesc/util/QName.hpp>

XERCES_CPP_NAMESPACE_BEGIN

class ContentLeafNameTypeVector;
class GrammarResolver;
class XMLStringPool;
class XMLValidator;
class SchemaGrammar;

/**
 *  This class defines the abstract interface for all content models. All
 *  elements have a content model against which (if validating) its content
 *  is checked. Each type of validator (DTD, Schema, etc...) can have
 *  different types of content models, and even with each type of validator
 *  there can be specialized content models. So this simple class provides
 *  the abstract API via which all the types of contents models are dealt
 *  with generically. Its pretty simple.
 */
class XMLPARSER_EXPORT XMLContentModel : public XMemory
{
public:
    // ---------------------------------------------------------------------------
    //  Public static data
    //
    //  gInvalidTrans
    //      This value represents an invalid transition in each line of the
    //      transition table.
    //
    //  gEOCFakeId
    //  gEpsilonFakeId
    //      We have to put in a couple of special CMLeaf nodes to represent
    //      special values, using fake element ids that we know won't conflict
    //      with real element ids.
    //
    //
    // ---------------------------------------------------------------------------
    static const unsigned int   gInvalidTrans;
    static const unsigned int   gEOCFakeId;
    static const unsigned int   gEpsilonFakeId;

    // -----------------------------------------------------------------------
    //  Constructors are hidden, only the virtual Destructor is exposed
    // -----------------------------------------------------------------------
    /** @name Destructor */
    //@{
    virtual ~XMLContentModel()
    {
    }
    //@}


    // -----------------------------------------------------------------------
    //  The virtual content model interface provided by derived classes
    // -----------------------------------------------------------------------
	virtual int validateContent
    (
        QName** const         children
      , const unsigned int    childCount
      , const unsigned int    emptyNamespaceId
    ) const = 0;

	virtual int validateContentSpecial
    (
        QName** const           children
      , const unsigned int      childCount
      , const unsigned int      emptyNamespaceId
      , GrammarResolver*  const pGrammarResolver
      , XMLStringPool*    const pStringPool
    ) const =0;

	virtual void checkUniqueParticleAttribution
    (
        SchemaGrammar*    const pGrammar
      , GrammarResolver*  const pGrammarResolver
      , XMLStringPool*    const pStringPool
      , XMLValidator*     const pValidator
      , unsigned int*     const pContentSpecOrgURI
      , const XMLCh*            pComplexTypeName = 0
    ) =0;

    virtual ContentLeafNameTypeVector* getContentLeafNameTypeVector()
	  const = 0;

    virtual unsigned int getNextState(const unsigned int currentState,
                                      const unsigned int elementIndex) const = 0;

protected :
    // -----------------------------------------------------------------------
    //  Hidden Constructors
    // -----------------------------------------------------------------------
    XMLContentModel()
    {
    }


private :
    // -----------------------------------------------------------------------
    //  Unimplemented constructors and operators
    // -----------------------------------------------------------------------
    XMLContentModel(const XMLContentModel&);
    XMLContentModel& operator=(const XMLContentModel&);
};

XERCES_CPP_NAMESPACE_END

#endif