Annotation of parser3/src/include/pa_table.h, revision 1.20
1.14 paf 1: /** @file
1.15 paf 2: Parser: table class decl.
3:
1.9 paf 4: Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
1.15 paf 5:
1.10 paf 6: Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
1.9 paf 7:
1.20 ! paf 8: $Id: pa_table.h,v 1.19 2001/03/24 19:12:18 paf Exp $
1.1 paf 9: */
10:
11: #ifndef PA_TABLE_H
12: #define PA_TABLE_H
13:
14: #include "pa_types.h"
15: #include "pa_array.h"
16: #include "pa_hash.h"
1.2 paf 17: #include "pa_string.h"
18: #include "pa_request.h"
1.1 paf 19:
1.16 paf 20: /**
1.19 paf 21: VTable backend.
1.16 paf 22:
23: holds:
1.14 paf 24: - column names[if any]
25: - data rows
26: - current row pointer
27:
28: uses String for column names and data items
29:
30: hence most of tables are "named", no need to uptimize nameless onces
31: */
1.1 paf 32: class Table : public Array {
33: public:
34:
1.11 paf 35: Table(Pool& apool,
1.2 paf 36: Array *acolumns,
37: int initial_rows=CR_INITIAL_ROWS_DEFAULT);
38:
1.14 paf 39: /// column names
1.5 paf 40: const Array *columns() { return fcolumns; }
41:
1.18 paf 42: /// moves @a current pointer
1.5 paf 43: void set_current(int acurrent) { fcurrent=acurrent; }
1.17 paf 44: /// @return current pointer
1.5 paf 45: int get_current() { return fcurrent; }
46:
1.18 paf 47: /// @return item from @a column_name
1.11 paf 48: const String *item(const String& column_name);
1.2 paf 49:
1.12 paf 50: private:
1.5 paf 51:
1.1 paf 52: // column name->number lookup table
53: Hash name2number;
54:
1.5 paf 55: // current row
56: int fcurrent;
57:
58: // columns
59: Array *fcolumns;
60:
1.12 paf 61: bool valid(int index) { return index>=0 && index<size(); }
62:
1.7 paf 63: const Array& at(int index);
1.2 paf 64:
1.11 paf 65: const String *item(int column_index) {
1.12 paf 66: return valid(fcurrent)?at(fcurrent).get_string(column_index):0;
1.11 paf 67: }
1.1 paf 68: };
69:
70: #endif
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