BxUnion.h

// ##################################################################
// Binx
// $Id: BxUnion_8h-source.html,v 1.1.1.1 2006/04/19 14:19:02 edikt2 Exp $
//
// Class for union data type.
// ##################################################################
/*

//  edikt::BinX
//  www.edikt.org
//  support@edikt.org

// Copyright (c) 2004 The University of Edinburgh.

*/

#ifndef __BxUnion__
#define __BxUnion__

#include "BxDataObject.h"
#include "BxUnionCases.h"

class DECLSPEC BxUnion : public BxDataObject
{
public:
    BxUnion();
    BxUnion(const BxUnion& copy);
    virtual ~BxUnion();

    virtual char * className() const { return "BxUnion"; }
    virtual BxUnion* clone() const;
    virtual void readFromBuffer(const byte *);
    virtual bool readFromFile();
    virtual char* toString(bool xml);
    virtual bool toStream(FILE*);
    virtual bool toStreamBinary(FILE*);

        // Write out the binary data with the specified byte order
    virtual bool toStreamBinary(FILE*, BxByteOrder);
    virtual void setBinaryFilePtr(BxBinaryFile* fp);

    void setDiscriminant(BxDataObject *);
    void setAssignedCase(BxUnionCase *p);
    void setAssignedCase(int index);
    void setAssignedCase();

    const BxUnionCases& getUnionCases() { return cases_; }
    BxDataObject * getDiscriminant() const { return discriminant_; }
    BxUnionCase * getAssignedCase() const { return assigned_; }
    BxDataObject * getDataObject();

    void addUnionCase(BxUnionCase * uc);
    void addUnionCase(const char * sDiscriminantValue, BxDataObject * pArmObject);

protected:
    BxDataObject * getArmDataObject() const;
    void resize();

private:
    BxDataObject * discriminant_;   //<common discriminant for data object type
    BxUnionCase * assigned_;    //<point to the found case
    BxUnionCases  cases_;   //<list of cases defined in BinX

};

#endif

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