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Diffstat (limited to 'storage/connect/tabutil.h')
| -rw-r--r-- | storage/connect/tabutil.h | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/storage/connect/tabutil.h b/storage/connect/tabutil.h new file mode 100644 index 00000000..6cf2b116 --- /dev/null +++ b/storage/connect/tabutil.h @@ -0,0 +1,155 @@ +// TABUTIL.H Olivier Bertrand 2013 +// Defines the TAB catalog tables + +#ifndef TABUTIL +#define TABUTIL 1 + +//#include "tabtbl.h" + +typedef class PRXDEF *PPRXDEF; +typedef class TDBPRX *PTDBPRX; +typedef class XXLCOL *PXXLCOL; +typedef class PRXCOL *PPRXCOL; +typedef class TBCDEF *PTBCDEF; +typedef class TDBTBC *PTDBTBC; + +TABLE_SHARE *GetTableShare(PGLOBAL g, THD *thd, const char *db, + const char *name, bool& mysql); +PQRYRES TabColumns(PGLOBAL g, THD *thd, const char *db, + const char *name, bool& info); + +TABLE_SHARE *Remove_tshp(PCATLG cat); +void Restore_tshp(PCATLG cat, TABLE_SHARE *s); + +/* -------------------------- PROXY classes -------------------------- */ + +/***********************************************************************/ +/* PROXY: table based on another table. Can be used to have a */ +/* different view on an existing table. */ +/* However, its real use is to be the base of TBL and PRX tables. */ +/***********************************************************************/ + +/***********************************************************************/ +/* PRX table. */ +/***********************************************************************/ +class DllExport PRXDEF : public TABDEF { /* Logical table description */ + friend class TDBPRX; + friend class TDBTBC; + public: + // Constructor + PRXDEF(void); + + // Implementation + virtual const char *GetType(void) {return "PRX";} + + // Methods + virtual bool DefineAM(PGLOBAL g, LPCSTR am, int poff); + virtual PTDB GetTable(PGLOBAL g, MODE mode); + + protected: + // Members + PTABLE Tablep; /* The object table */ + }; // end of PRXDEF + +/***********************************************************************/ +/* This is the class declaration for the XCSV table. */ +/***********************************************************************/ +class DllExport TDBPRX : public TDBASE { + friend class PRXDEF; + friend class PRXCOL; + public: + // Constructors + TDBPRX(PPRXDEF tdp); + TDBPRX(PTDBPRX tdbp); + + // Implementation + virtual AMT GetAmType(void) {return TYPE_AM_PRX;} + virtual PTDB Duplicate(PGLOBAL g) + {return (PTDB)new(g) TDBPRX(this);} + + // Methods + virtual PTDB Clone(PTABS t); + virtual int GetRecpos(void) {return Tdbp->GetRecpos();} + virtual void ResetDB(void) {Tdbp->ResetDB();} + virtual int RowNumber(PGLOBAL g, bool b = FALSE); + virtual PCSZ GetServer(void) {return (Tdbp) ? Tdbp->GetServer() : (PSZ)"?";} + + // Database routines + virtual PCOL MakeCol(PGLOBAL g, PCOLDEF cdp, PCOL cprec, int n); + virtual bool InitTable(PGLOBAL g); + virtual int Cardinality(PGLOBAL g); + virtual int GetMaxSize(PGLOBAL g); + virtual bool OpenDB(PGLOBAL g); + virtual int ReadDB(PGLOBAL g); + virtual int WriteDB(PGLOBAL g); + virtual int DeleteDB(PGLOBAL g, int irc); + virtual void CloseDB(PGLOBAL g) {if (Tdbp) Tdbp->CloseDB(g);} + PTDB GetSubTable(PGLOBAL g, PTABLE tabp, bool b = false); + void RemoveNext(PTABLE tp); + + protected: + // Members + PTDB Tdbp; // The object table + }; // end of class TDBPRX + +/***********************************************************************/ +/* Class PRXCOL: PRX access method column descriptor. */ +/* This A.M. is used for PRX tables. */ +/***********************************************************************/ +class DllExport PRXCOL : public COLBLK { + friend class TDBPRX; + friend class TDBTBL; + friend class TDBOCCUR; + public: + // Constructors + PRXCOL(PCOLDEF cdp, PTDB tdbp, PCOL cprec, int i, PCSZ am = "PRX"); + PRXCOL(PRXCOL *colp, PTDB tdbp); // Constructor used in copy process + + // Implementation + virtual int GetAmType(void) {return TYPE_AM_PRX;} + + // Methods + using COLBLK::Init; + virtual void Reset(void); + virtual bool IsSpecial(void) {return Pseudo;} + virtual bool SetBuffer(PGLOBAL g, PVAL value, bool ok, bool check) + {return false;} + virtual void ReadColumn(PGLOBAL g); + virtual void WriteColumn(PGLOBAL g); + virtual bool Init(PGLOBAL g, PTDB tp); + + protected: + char *Decode(PGLOBAL g, const char *cnm); + + // Default constructor not to be used + PRXCOL(void) = default; + + // Members + PCOL Colp; // Points to matching table column + PVAL To_Val; // To the matching column value + bool Pseudo; // TRUE for special columns + int Colnum; // Used when retrieving columns by number + }; // end of class PRXCOL + +/***********************************************************************/ +/* This is the class declaration for the TBC column catalog table. */ +/***********************************************************************/ +class TDBTBC : public TDBCAT { + public: + // Constructors + TDBTBC(PPRXDEF tdp); + + protected: + // Specific routines + virtual PQRYRES GetResult(PGLOBAL g); + + // Members + PSZ Db; // Database of the table + PSZ Tab; // Table name + }; // end of class TDBMCL + +class XCOLBLK : public COLBLK { + friend class PRXCOL; +}; // end of class XCOLBLK + +#endif // TABUTIL |