1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
// TABOCCUR.H Olivier Bertrand 2013
// Defines the OCCUR tables
#include "tabutil.h"
typedef class OCCURDEF *POCCURDEF;
typedef class TDBOCCUR *PTDBOCCUR;
typedef class OCCURCOL *POCCURCOL;
typedef class RANKCOL *PRANKCOL;
/* -------------------------- OCCUR classes -------------------------- */
/***********************************************************************/
/* OCCUR: Table that provides a view of a source table where the */
/* contain of several columns of the source table is placed in only */
/* one column, the OCCUR column, this resulting into several rows. */
/***********************************************************************/
/***********************************************************************/
/* OCCUR table. */
/***********************************************************************/
class OCCURDEF : public PRXDEF { /* Logical table description */
friend class TDBOCCUR;
public:
// Constructor
OCCURDEF(void) {Pseudo = 3; Colist = Xcol = NULL;}
// Implementation
virtual const char *GetType(void) {return "OCCUR";}
// Methods
virtual bool DefineAM(PGLOBAL g, LPCSTR am, int poff);
virtual PTDB GetTable(PGLOBAL g, MODE m);
protected:
// Members
char *Colist; /* The source column list */
char *Xcol; /* The multiple occurrence column */
char *Rcol; /* The rank column */
}; // end of OCCURDEF
/***********************************************************************/
/* This is the class declaration for the OCCUR table. */
/***********************************************************************/
class TDBOCCUR : public TDBPRX {
friend class OCCURCOL;
friend class RANKCOL;
public:
// Constructor
TDBOCCUR(POCCURDEF tdp);
// Implementation
virtual AMT GetAmType(void) {return TYPE_AM_OCCUR;}
void SetTdbp(PTDBASE tdbp) {Tdbp = tdbp;}
// Methods
virtual void ResetDB(void) {N = 0; Tdbp->ResetDB();}
virtual int RowNumber(PGLOBAL g, bool b = FALSE);
bool MakeColumnList(PGLOBAL g);
bool ViewColumnList(PGLOBAL g);
// Database routines
virtual PCOL MakeCol(PGLOBAL g, PCOLDEF cdp, PCOL cprec, int n);
virtual bool InitTable(PGLOBAL g);
virtual int GetMaxSize(PGLOBAL g);
virtual bool OpenDB(PGLOBAL g);
virtual int ReadDB(PGLOBAL g);
protected:
// Members
LPCSTR Tabname; // Name of source table
char *Colist; // Source column list
char *Xcolumn; // Occurence column name
char *Rcolumn; // Rank column name
POCCURCOL Xcolp; // To the OCCURCOL column
PCOL *Col; // To source multiple columns
int Mult; // Multiplication factor
int N; // The current table index
int M; // The occurrence rank
BYTE RowFlag; // 0: Ok, 1: Same, 2: Skip
}; // end of class TDBOCCUR
/***********************************************************************/
/* Class OCCURCOL: for the multiple occurrence column. */
/***********************************************************************/
class OCCURCOL : public COLBLK {
public:
// Constructors
OCCURCOL(PCOLDEF cdp, PTDBOCCUR tdbp, int n);
// Implementation
virtual int GetAmType(void) {return TYPE_AM_OCCUR;}
int GetI(void) {return I;}
// Methods
virtual void Reset(void) {} // Evaluated only by TDBOCCUR
virtual void ReadColumn(PGLOBAL g);
void Xreset(void) {I = 0;};
protected:
// Default constructor not to be used
OCCURCOL(void) {}
// Members
int I;
}; // end of class OCCURCOL
/***********************************************************************/
/* Class RANKCOL: for the multiple occurrence column ranking. */
/***********************************************************************/
class RANKCOL : public COLBLK {
public:
// Constructors
RANKCOL(PCOLDEF cdp, PTDBOCCUR tdbp, int n) : COLBLK(cdp, tdbp, n) {}
// Implementation
virtual int GetAmType(void) {return TYPE_AM_OCCUR;}
// Methods
virtual void ReadColumn(PGLOBAL g);
protected:
// Default constructor not to be used
RANKCOL(void) {}
// Members
}; // end of class RANKCOL
/***********************************************************************/
/* Definition of class XCOLDEF. */
/* This class purpose is just to access COLDEF protected items! */
/***********************************************************************/
class XCOLDEF: public COLDEF {
friend class TDBOCCUR;
}; // end of class XCOLDEF
bool OcrColumns(PGLOBAL g, PQRYRES qrp, const char *col,
const char *ocr, const char *rank);
bool OcrSrcCols(PGLOBAL g, PQRYRES qrp, const char *col,
const char *ocr, const char *rank);
|
