DbiRowStream.h

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#ifndef DBIROWSTREAM_H
#define DBIROWSTREAM_H

#include <string>

#include "DatabaseInterface/DbiFieldType.h"

class DbiTableMetaData;

class DbiRowStream
{

public:

// Constructors and destructors.
           DbiRowStream(const DbiTableMetaData* metaData);
  virtual ~DbiRowStream();

// State testing member functions
virtual
 const DbiFieldType& ColFieldType(UInt_t col) const;
virtual       string ColName(UInt_t col) const;
virtual
 const DbiFieldType& CurColFieldType() const;
virtual       string CurColName() const;
virtual       UInt_t CurColNum() const { return fCurCol;}
       Bool_t HasRowCounter() const { return fHasRowCounter; }
virtual       UInt_t NumCols() const;
virtual       string TableName() const;
virtual       string TableNameTc() const;
virtual const DbiTableMetaData*
              MetaData() const { return fMetaData; }
// State changing member functions

virtual    void DecrementCurCol() { 
                            fCurCol = (fCurCol <= 1) ? 1 : fCurCol -1; }
// Allow IncrementCurCol to step off end (to catch attempt to read
// too much data)
virtual    void IncrementCurCol() { ++fCurCol; }

protected:

virtual    void ClearCurCol() { fCurCol = 1; }

private:  


// Data members

  UShort_t fCurCol;     

  Bool_t fHasRowCounter;

 const DbiTableMetaData* fMetaData;

 ClassDef(DbiRowStream,0)     // I/O of a table row.

};


#endif  // DBIROWSTREAM_H

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