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cCursor.h

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/******************************************************************************/
/*                                                                            */
/* POLiTe - Persistent Object Library Test                                    */
/*                                        Ph.D. Thesis by Mgr. Michal Kopecky */
/*                                                                            */
/* Charles University Prague                                                  */
/*                                                                            */
/******************************************************************************/
/*                                                                            */
/* File name: ...                                                             */
/* Module: ......                                                             */
/*                                                                            */
/******************************************************************************/

#ifndef __C_CURSOR_H__
#define __C_CURSOR_H__

// Common POLiTe Header(s)
#include <lTypes.h>
#include <lExceptions.h>

class DLL_External Cursor
{
#ifdef POLITE_TEST_FRIEND
        friend POLITE_TEST_FRIEND;
#endif // POLITE_TEST_FRIEND

friend class Connection;
friend class ResultBase;
friend class ProtoBase;

protected:
        class Connection *_DatabaseConnection;
        bool _Opened;
        Cursor(
                class Connection *DbC
                );

public:
        virtual ~Cursor();

protected:
        virtual bool _Open();
        virtual bool _Prepare(const char * const SqlCommand) = 0;
        virtual bool _PreExecBind(
                const char *const VarName,
                const void *VarAddr,
                const int VarLen,
                const char VarType,
                const short *VarInd = NULL
                ) = 0;
        virtual bool _Execute() = 0;
        virtual bool _PreFetchBind(
                const int Position,
                const void *VarAddr,
                const int VarLen,
                const char VarType,
                const short *VarInd = NULL
                ) = 0;
        virtual bool _FetchNext() = 0;
        virtual bool _FetchPrev() = 0;
        virtual long _Position() = 0;
        virtual bool _Close();
        char *_GetUserName();
        char *_GetPassword();
  };

#endif //__C_CURSOR_H__

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