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109 lines
4.7 KiB
C++
109 lines
4.7 KiB
C++
/*************** TabCol H Declares Source Code File (.H) ***************/
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/* Name: TABCOL.H Version 2.8 */
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/* */
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/* (C) Copyright to the author Olivier BERTRAND 1998-2013 */
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/* */
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/* This file contains the XTAB, COLUMN and XORDER class definitions. */
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/***********************************************************************/
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/***********************************************************************/
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/* Include required application header files */
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/* block.h is header containing Block global declarations. */
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/***********************************************************************/
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#include "xobject.h"
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/***********************************************************************/
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/* Definition of class XTAB with all its method functions. */
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/***********************************************************************/
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class DllExport XTAB: public BLOCK { // Table Name-Schema-Srcdef block.
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friend class TDBPRX;
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friend class TDBTBM;
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public:
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// Constructors
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XTAB(LPCSTR name, LPCSTR srcdef = NULL);
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XTAB(PTABLE tp);
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// Implementation
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PTABLE GetNext(void) {return Next;}
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PTDB GetTo_Tdb(void) {return To_Tdb;}
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LPCSTR GetName(void) {return Name;}
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LPCSTR GetSrc(void) {return Srcdef;}
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LPCSTR GetSchema(void) {return Schema;}
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LPCSTR GetQualifier(void) {return Qualifier;}
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void SetTo_Tdb(PTDB tdbp) {To_Tdb = tdbp;}
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void SetName(LPCSTR name) {Name = name;}
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void SetSrc(LPCSTR srcdef) {Srcdef = srcdef;}
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void SetSchema(LPCSTR schname) {Schema = schname;}
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void SetQualifier(LPCSTR qname) {Qualifier = qname;}
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// Methods
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PTABLE Link(PTABLE);
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void Printf(PGLOBAL g, FILE *f, uint n);
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void Prints(PGLOBAL g, char *ps, uint z);
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protected:
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// Members
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PTABLE Next; // Points to next table in chain
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PTDB To_Tdb; // Points to Table description Block
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LPCSTR Name; // Table name
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LPCSTR Srcdef; // Table Source definition
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LPCSTR Schema; // Schema name
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LPCSTR Qualifier; // Qualifier name
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}; // end of class XTAB
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/***********************************************************************/
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/* Definition of class COLUMN with all its method functions. */
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/* Note: because of LNA routines, the constantness of Name was */
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/* removed and constructing a COLUMN with null name was allowed. */
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/* Perhaps this should be replaced by the use of a specific class. */
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/***********************************************************************/
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class DllExport COLUMN: public XOBJECT { // Column Name/Qualifier block.
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public:
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// Constructor
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COLUMN(LPCSTR name);
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// Implementation
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virtual int GetType(void) {return TYPE_COLUMN;}
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virtual int GetResultType(void) {assert(false); return TYPE_VOID;}
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virtual int GetLength(void) {assert(false); return 0;}
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virtual int GetLengthEx(void) {assert(false); return 0;}
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virtual int GetScale() {assert(false); return 0;};
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LPCSTR GetName(void) {return Name;}
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LPCSTR GetQualifier(void) {return Qualifier;}
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PTABLE GetTo_Table(void) {return To_Table;}
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PCOL GetTo_Col(void) {return To_Col;}
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void SetQualifier(LPCSTR qualif) {Qualifier = qualif;}
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void SetTo_Table(PTABLE tablep) {To_Table = tablep;}
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void SetTo_Col(PCOL colp) {To_Col = colp;}
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// Methods
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virtual void Printf(PGLOBAL g, FILE *f, uint n);
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virtual void Prints(PGLOBAL g, char *ps, uint z);
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// All methods below should never be used for COLUMN's
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virtual void Reset(void) {assert(false);}
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virtual bool Compare(PXOB) {assert(false); return false;}
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virtual bool SetFormat(PGLOBAL, FORMAT&);
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virtual bool Eval(PGLOBAL) {assert(false); return true;}
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private:
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// Members
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PTABLE To_Table; // Point to Table Name Block
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PCOL To_Col; // Points to Column Description Block
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LPCSTR const Name; // Column name
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LPCSTR Qualifier; // Qualifier name
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}; // end of class COLUMN
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/***********************************************************************/
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/* Definition of class SPCCOL with all its method functions. */
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/* Note: Currently the special columns are ROWID, ROWNUM, FILEID, */
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/* SERVID, TABID, PARTID, and CONID. */
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/***********************************************************************/
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class SPCCOL: public COLUMN { // Special Column Name/Qualifier block.
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public:
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// Constructor
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SPCCOL(LPCSTR name) : COLUMN(name) {}
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private:
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// Members
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}; // end of class SPCCOL
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