src/validators/DTD/DTDAttDefList.hpp

/*
 * The Apache Software License, Version 1.1
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 * Copyright (c) 1999 The Apache Software Foundation.  All rights 
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 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
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 * 4. The names "Xerces" and "Apache Software Foundation" must
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 * This software consists of voluntary contributions made by many
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/**
 * $Log$
 * Revision 1.1  1999/11/09 01:03:28  twl
 * Initial revision
 *
 * Revision 1.2  1999/11/08 20:45:39  rahul
 * Swat for adding in Product name and CVS comment log variable.
 *
 */


#if !defined(DTDATTDEFLIST_HPP)
#define DTDATTDEFLIST_HPP

#include <util/RefHashTableOf.hpp>
#include <validators/DTD/DTDElementDecl.hpp>


//
//  This is a derivative of the framework abstract class which defines the
//  interface to a list of attribute defs that belong to a particular
//  element. The scanner needs to be able to get a list of the attributes
//  that an element supports, for use during the validation process and for
//  fixed/default attribute processing.
//
//  Since each validator can store attributes differently, this abstract
//  interface allows each validator to provide an implementation of this
//  data strucure that works best for it.
//
//  For us, we just wrap the RefHashTableOf collection that the DTDElementDecl
//  class uses to store the attributes that belong to it.
//
//  This clss does not adopt the hash table, it just references it. The
//  hash table is owned by the element decl it is a member of.
//
class DTDAttDefList : public XMLAttDefList
{
public :
    // -----------------------------------------------------------------------
    //  Constructors and Destructor
    // -----------------------------------------------------------------------
    DTDAttDefList
    (
        RefHashTableOf<DTDAttDef>* const    listToUse
    );

    ~DTDAttDefList();


    // -----------------------------------------------------------------------
    //  Implementation of the virtual interface
    // -----------------------------------------------------------------------
    virtual bool hasMoreElements() const;
    virtual bool isEmpty() const;
    virtual XMLAttDef* findAttDef
    (
        const   unsigned long       uriID
        , const XMLCh* const        attName
    );
    virtual const XMLAttDef* findAttDef
    (
        const   unsigned long       uriID
        , const XMLCh* const        attName
    )   const;
    virtual XMLAttDef* findAttDef
    (
        const   XMLCh* const        attURI
        , const XMLCh* const        attName
    );
    virtual const XMLAttDef* findAttDef
    (
        const   XMLCh* const        attURI
        , const XMLCh* const        attName
    )   const;
    virtual XMLAttDef& nextElement();
    virtual void Reset();


private :
    // -----------------------------------------------------------------------
    //  Private data members
    //
    //  fEnum
    //      This is an enerator for the list that we use to do the enumerator
    //      type methods of this class.
    //
    //  fList
    //      The list of DTDAttDef objects that represent the attributes that
    //      a particular element supports.
    // -----------------------------------------------------------------------
    RefHashTableOfEnumerator<DTDAttDef>*    fEnum;
    RefHashTableOf<DTDAttDef>*              fList;
};

#endif