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/***************** FilAmDbf H Declares Source Code File (.H) ****************/
/* Name: filamdbf.h Version 1.4 */
/* */
/* (C) Copyright to the author Olivier BERTRAND 2005-2014 */
/* */
/* This file contains the DBF file access method classes declares. */
/****************************************************************************/
#ifndef __FILAMDBF_H
#define __FILAMDBF_H
#include "filamfix.h"
#include "filamap.h"
typedef class DBFBASE *PDBF;
typedef class DBFFAM *PDBFFAM;
typedef class DBMFAM *PDBMFAM;
/****************************************************************************/
/* Functions used externally. */
/****************************************************************************/
PQRYRES DBFColumns(PGLOBAL g, PCSZ dp, PCSZ fn, PTOS tiop, bool info);
/****************************************************************************/
/* This is the base class for dBASE file access methods. */
/****************************************************************************/
class DllExport DBFBASE {
public:
// Constructors
DBFBASE(PDOSDEF tdp);
DBFBASE(PDBF txfp);
// Implementation
int ScanHeader(PGLOBAL g, PCSZ fname, int lrecl, int *rlen, PCSZ defpath);
protected:
// Default constructor, not to be used
DBFBASE(void) = default;
// Members
int Records; /* records in the file */
bool Accept; /* true if bad lines are accepted */
int Nerr; /* Number of bad records */
int Maxerr; /* Maximum number of bad records */
int ReadMode; /* 1: ALL 2: DEL 0: NOT DEL */
}; // end of class DBFBASE
/****************************************************************************/
/* This is the DOS/UNIX Access Method class declaration for DBase files. */
/****************************************************************************/
class DllExport DBFFAM : public FIXFAM, public DBFBASE {
public:
// Constructors
DBFFAM(PDOSDEF tdp) : FIXFAM(tdp), DBFBASE(tdp) {}
DBFFAM(PDBFFAM txfp) : FIXFAM(txfp), DBFBASE((PDBF)txfp) {}
// Implementation
virtual AMT GetAmType(void) {return TYPE_AM_DBF;}
virtual PTXF Duplicate(PGLOBAL g)
{return (PTXF)new(g) DBFFAM(this);}
// Methods
virtual int GetNerr(void) {return Nerr;}
virtual int Cardinality(PGLOBAL g);
virtual bool OpenTableFile(PGLOBAL g);
virtual bool AllocateBuffer(PGLOBAL g);
virtual void ResetBuffer(PGLOBAL g);
virtual int ReadBuffer(PGLOBAL g);
virtual int DeleteRecords(PGLOBAL g, int irc);
virtual void CloseTableFile(PGLOBAL g, bool abort);
virtual void Rewind(void);
protected:
virtual bool CopyHeader(PGLOBAL g);
//virtual int InitDelete(PGLOBAL g, int fpos, int spos);
// Members
}; // end of class DBFFAM
/****************************************************************************/
/* This is the DOS/UNIX Access Method class declaration for DBase files */
/* using file mapping to access the file. */
/****************************************************************************/
class DllExport DBMFAM : public MPXFAM, public DBFBASE {
public:
// Constructors
DBMFAM(PDOSDEF tdp) : MPXFAM(tdp), DBFBASE(tdp) {}
DBMFAM(PDBMFAM txfp) : MPXFAM(txfp), DBFBASE((PDBF)txfp) {}
// Implementation
virtual AMT GetAmType(void) {return TYPE_AM_DBF;}
virtual PTXF Duplicate(PGLOBAL g)
{return (PTXF)new(g) DBMFAM(this);}
virtual int GetDelRows(void);
// Methods
virtual int GetNerr(void) {return Nerr;}
virtual int Cardinality(PGLOBAL g);
virtual bool AllocateBuffer(PGLOBAL g);
virtual int ReadBuffer(PGLOBAL g);
virtual int DeleteRecords(PGLOBAL g, int irc);
virtual void Rewind(void);
protected:
// Members
}; // end of class DBFFAM
#endif // __FILAMDBF_H
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