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/*************** RelDef H Declares Source Code File (.H) ***************/
/* Name: RELDEF.H Version 1.3 */
/* */
/* (C) Copyright to the author Olivier BERTRAND 2004-2012 */
/* */
/* This file contains the DEF classes definitions. */
/***********************************************************************/
#ifndef __RELDEF_H
#define __RELDEF_H
#include "block.h"
#include "catalog.h"
typedef class INDEXDEF *PIXDEF;
/***********************************************************************/
/* Table or View (relation) definition block. */
/***********************************************************************/
class DllExport RELDEF : public BLOCK { // Relation definition block
friend class CATALOG;
friend class PLUGCAT;
friend class MYCAT;
public:
RELDEF(void); // Constructor
// Implementation
PRELDEF GetNext(void) {return Next;}
PSZ GetName(void) {return Name;}
PSZ GetDB(void) {return (PSZ)Database;}
PCOLDEF GetCols(void) {return To_Cols;}
void SetCols(PCOLDEF pcd) {To_Cols = pcd;}
PCATLG GetCat(void) {return Cat;}
virtual const char *GetType(void) = 0;
virtual AMT GetDefType(void) = 0;
// Methods
virtual bool DeleteTableFile(PGLOBAL g) {return true;}
virtual bool Indexable(void) {return false;}
virtual bool Define(PGLOBAL g, PCATLG cat, LPCSTR name, LPCSTR am) = 0;
virtual PTDB GetTable(PGLOBAL g, MODE mode) = 0;
protected:
PRELDEF Next; /* To next definition block */
PSZ Name; /* Name of the view */
LPCSTR Database; /* Table database */
PCOLDEF To_Cols; /* To a list of column desc */
PCATLG Cat; /* To DB catalog info */
}; // end of RELDEF
/***********************************************************************/
/* These classes correspond to the data base description contained in */
/* a .XDB file the A.M. DOS, FIX, CSV, MAP, BIN, VCT, PLG, ODBC, DOM. */
/***********************************************************************/
class DllExport TABDEF : public RELDEF { /* Logical table descriptor */
friend class CATALOG;
friend class PLUGCAT;
friend class MYCAT;
public:
// Constructor
TABDEF(void); // Constructor
// Implementation
int GetDegree(void) {return Degree;}
void SetDegree(int d) {Degree = d;}
int GetElemt(void) {return Elemt;}
void SetNext(PTABDEF tdfp) {Next = tdfp;}
int GetMultiple(void) {return Multiple;}
int GetPseudo(void) {return Pseudo;}
PSZ GetPath(void)
{return (Database) ? (PSZ)Database : Cat->GetDataPath();}
bool SepIndex(void) {return Cat->GetSepIndex();}
bool IsReadOnly(void) {return Read_Only;}
virtual AMT GetDefType(void) {return TYPE_AM_TAB;}
virtual PIXDEF GetIndx(void) {return NULL;}
virtual void SetIndx(PIXDEF xp) {}
virtual bool IsHuge(void) {return false;}
// Methods
bool DropTable(PGLOBAL g, PSZ name);
virtual bool Define(PGLOBAL g, PCATLG cat, LPCSTR name, LPCSTR am);
virtual bool DefineAM(PGLOBAL, LPCSTR, int) = 0;
protected:
// Members
PSZ Owner; /* Table owner (for ODBC) */
PSZ Desc; /* Table description */
int Card; /* (max) number of rows in table */
int Elemt; /* Number of rows in blocks or rowset */
int Sort; /* Table already sorted ??? */
int Multiple; /* 0: No 1: DIR 2: Section 3: filelist */
int Degree; /* Number of columns in the table */
int Pseudo; /* Bit: 1 ROWID Ok, 2 FILEID Ok */
bool Read_Only; /* true for read only tables */
}; // end of TABDEF
/***********************************************************************/
/* Externally defined OEM tables. */
/***********************************************************************/
class DllExport OEMDEF : public TABDEF { /* OEM table */
friend class CATALOG;
friend class PLUGCAT;
friend class MYCAT;
public:
// Constructor
OEMDEF(void) {Hdll = NULL; Pxdef = NULL; Module = Subtype = NULL;}
// Implementation
virtual const char *GetType(void) {return "OEM";}
virtual AMT GetDefType(void) {return TYPE_AM_OEM;}
// Methods
virtual bool DeleteTableFile(PGLOBAL g);
virtual bool DefineAM(PGLOBAL g, LPCSTR am, int poff);
virtual PTDB GetTable(PGLOBAL g, MODE mode);
protected:
PTABDEF GetXdef(PGLOBAL g);
// Members
#if defined(WIN32)
HANDLE Hdll; /* Handle to the external DLL */
#else // !WIN32
void *Hdll; /* Handle for the loaded shared library */
#endif // !WIN32
PTABDEF Pxdef; /* Pointer to the external TABDEF class */
char *Module; /* Path/Name of the DLL implenting it */
char *Subtype; /* The name of the OEM table sub type */
}; // end of OEMDEF
/***********************************************************************/
/* Column definition block used during creation. */
/***********************************************************************/
class DllExport COLCRT : public BLOCK { /* Column description block */
friend class TABDEF;
public:
COLCRT(PSZ name); // Constructor
COLCRT(void); // Constructor (for views)
// Implementation
PSZ GetName(void) {return Name;}
PSZ GetDecode(void) {return Decode;}
PSZ GetFmt(void) {return Fmt;}
int GetOpt(void) {return Opt;}
int GetLong(void) {return Long;}
int GetOffset(void) {return Offset;}
void SetOffset(int offset) {Offset = offset;}
protected:
PCOLCRT Next; /* To next block */
PSZ Name; /* Column name */
PSZ Desc; /* Column description */
PSZ Decode; /* Date format */
PSZ Fmt; /* Input format for formatted files */
int Offset; /* Offset of field within record */
int Long; /* Length of field in file record (!BIN) */
int Key; /* Key (greater than 1 if multiple) */
int Prec; /* Precision for float values */
int Opt; /* 0:Not 1:clustered 2:sorted-asc 3:desc */
char DataType; /* Internal data type (C, N, F, T) */
}; // end of COLCRT
/***********************************************************************/
/* Column definition block. */
/***********************************************************************/
class DllExport COLDEF : public COLCRT { /* Column description block */
friend class CATALOG;
friend class PLUGCAT;
friend class MYCAT;
friend class COLBLK;
friend class DBFFAM;
public:
COLDEF(void); // Constructor
// Implementation
PCOLDEF GetNext(void) {return (PCOLDEF)Next;}
void SetNext(PCOLDEF pcdf) {Next = pcdf;}
int GetLength(void) {return (int)F.Length;}
int GetClen(void) {return Clen;}
int GetType(void) {return Buf_Type;}
int GetPoff(void) {return Poff;}
int Define(PGLOBAL g, void *memp, PCOLINFO cfp, int poff);
void Define(PGLOBAL g, PCOL colp);
protected:
int Buf_Type; /* Internal data type */
int Clen; /* Internal data size in chars (bytes) */
int Poff; /* Calculated offset for Packed tables */
FORMAT F; /* Output format (should be in COLCRT) */
ushort Flags; /* Used by MariaDB CONNECT handler */
}; // end of COLDEF
#endif // __RELDEF_H
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