1 /*************** TabVct H Declares Source Code File (.H) ***************/
2 /*  Name: TABVCT.H    Version 3.4                                      */
3 /*                                                                     */
4 /*  (C) Copyright to the author Olivier BERTRAND          1999-2011    */
5 /*                                                                     */
6 /*  This file contains the TDBVCT class  declares.                     */
7 /***********************************************************************/
8 #ifndef __TABVCT__
9 #define __TABVCT__
10 
11 #include "tabfix.h"
12 #if defined(UNIX)
13 //#include <string.h.SUNWCCh>
14 #endif
15 
16 typedef class TDBVCT *PTDBVCT;
17 typedef class VCTCOL *PVCTCOL;
18 
19 /***********************************************************************/
20 /*  VCT table.                                                         */
21 /***********************************************************************/
22 class DllExport VCTDEF : public DOSDEF {  /* Logical table description */
23   friend class TDBVCT;
24   friend class VCTFAM;
25   friend class VECFAM;
26   friend class VMPFAM;
27  public:
28   // Constructor
VCTDEF(void)29   VCTDEF(void) {Split = false; Estimate = Header = 0;}
30 
31   // Implementation
GetType(void)32   virtual const char *GetType(void) {return "VCT";}
GetEstimate(void)33   int  GetEstimate(void) {return Estimate;}
34 
35   // Methods
36   virtual bool DefineAM(PGLOBAL g, LPCSTR am, int poff);
37   virtual PTDB GetTable(PGLOBAL g, MODE mode);
38 
39  protected:
40           int  MakeFnPattern(char *fpat);
41 
42   // Members
43   bool    Split;              /* Columns in separate files             */
44   int     Estimate;           /* Estimated maximum size of table       */
45   int     Header;             /* 0: no, 1: separate, 2: in data file   */
46   }; // end of VCTDEF
47 
48 /***********************************************************************/
49 /*  This is the DOS/UNIX Access Method class declaration for files     */
50 /*  in blocked vector format. In each block containing "Elements"      */
51 /*  records, values of each columns are consecutively stored (vector). */
52 /***********************************************************************/
53 class DllExport TDBVCT : public TDBFIX {
54   friend class VCTCOL;
55   friend class VCTFAM;
56   friend class VCMFAM;
57   friend class VECFAM;
58   friend class VMPFAM;
59  public:
60   // Constructors
61   TDBVCT(PVCTDEF tdp, PTXF txfp);
62   TDBVCT(PGLOBAL g, PTDBVCT tdbp);
63 
64   // Implementation
GetAmType(void)65   virtual AMT  GetAmType(void) {return TYPE_AM_VCT;}
Duplicate(PGLOBAL g)66   virtual PTDB Duplicate(PGLOBAL g)
67                 {return (PTDB)new(g) TDBVCT(g, this);}
IsSplit(void)68           bool IsSplit(void) {return ((VCTDEF*)To_Def)->Split;}
69 
70   // Methods
71   virtual PTDB Clone(PTABS t);
72   virtual bool IsUsingTemp(PGLOBAL g);
73 
74   // Database routines
75   virtual PCOL MakeCol(PGLOBAL g, PCOLDEF cdp, PCOL cprec, int n);
76   virtual bool OpenDB(PGLOBAL g);
77   virtual int  ReadDB(PGLOBAL g);
78   virtual void CloseDB(PGLOBAL g);
79 
80  protected:
81   // Members
82   }; // end of class TDBVCT
83 
84 /***********************************************************************/
85 /*  Class VCTCOL: VCT access method column descriptor.                 */
86 /*  This A.M. is used for file having column wise organization.        */
87 /***********************************************************************/
88 class DllExport VCTCOL : public DOSCOL {
89   friend class TDBVCT;
90   friend class VCTFAM;
91   friend class VCMFAM;
92   friend class VECFAM;
93   friend class VMPFAM;
94   friend class BGVFAM;
95  public:
96   // Constructors
97   VCTCOL(PGLOBAL g, PCOLDEF cdp, PTDB tdbp, PCOL cprec, int i);
98   VCTCOL(VCTCOL *colp, PTDB tdbp); // Constructor used in copy process
99 
100   // Implementation
GetAmType(void)101   virtual int  GetAmType(void) {return TYPE_AM_VCT;}
102 
103   // Methods
104   virtual void ReadColumn(PGLOBAL g);
105   virtual void WriteColumn(PGLOBAL g);
106   virtual bool SetBuffer(PGLOBAL g, PVAL value, bool ok, bool check);
107   virtual void SetOk(void);
108 
109  protected:
110   virtual void ReadBlock(PGLOBAL g);
111   virtual void WriteBlock(PGLOBAL g);
112 
VCTCOL(void)113   VCTCOL(void) {}        // Default constructor not to be used
114 
115   // Members
116   PVBLK Blk;             // Block buffer
117   int   Clen;            // Internal length in table
118   int   ColBlk;          // Block pointed by column
119   int   ColPos;          // Last position read
120   int   Modif;           // Number of modified lines in block
121   }; // end of class VCTCOL
122 
123 #endif // __TABVCT__
124 
125