1 /*
2 Copyright (c) 2011, Oracle and/or its affiliates. All rights
3 reserved.
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License, version 2.0,
7 as published by the Free Software Foundation.
8
9 This program is also distributed with certain software (including
10 but not limited to OpenSSL) that is licensed under separate terms,
11 as designated in a particular file or component or in included license
12 documentation. The authors of MySQL hereby grant you an additional
13 permission to link the program and your derivative works with the
14 separately licensed software that they have included with MySQL.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License, version 2.0, for more details.
20
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
24 02110-1301 USA
25 */
26 #ifndef NDBMEMCACHE_TABLESPEC_H
27 #define NDBMEMCACHE_TABLESPEC_H
28
29 #ifndef __cplusplus
30 #error "This file is for C++ only"
31 #endif
32
33 #include "ndbmemcache_config.h"
34
35 /** @class TableSpec
36 * @brief In-memory representation of a containers record from the configuration.
37 */
38 class TableSpec {
39
40 public:
41 /* Public Constructors */
42 TableSpec(int nkeys, int nvals);
43 TableSpec(const char *db, const char *tab, int nkeys, int nvals);
44 TableSpec(const char *sqltabname, const char *keycols, const char *valcols);
45 TableSpec(const TableSpec &);
46
47 /* Other Public Methods */
48 ~TableSpec();
49 void setTable(const char *db, const char *table);
50 void setKeyColumns(const char *col1, ...);
51 void setValueColumns(const char *col1, ...);
52 bool isValid() const;
53
54 /* Public instance variables */
55 int nkeycols;
56 int nvaluecols;
57 const char *schema_name;
58 const char *table_name;
59 const char *math_column;
60 const char *flags_column;
61 const char *cas_column;
62 const char *exp_column;
63 Uint32 static_flags;
64 const char ** const key_columns;
65 const char ** const value_columns;
66 TableSpec * external_table;
67
68 private:
69 /* private instance variables */
70 struct {
71 unsigned none : 1;
72 unsigned schema_name : 1;
73 unsigned table_name : 1;
74 unsigned first_key : 1;
75 unsigned all_key_cols : 1;
76 unsigned first_val : 1;
77 unsigned all_val_cols : 1;
78 unsigned special_cols : 1;
79 } must_free;
80
81 /* private instance methods */
82 void initialize_flags(void);
83
84 /* private class methods */
85 static int build_column_list(const char ** const &array, const char *list);
86 };
87
88
89 /* Inline functions */
90
TableSpec(int nkeys,int nvals)91 inline TableSpec::TableSpec(int nkeys, int nvals) :
92 nkeycols(nkeys),
93 nvaluecols(nvals),
94 schema_name(0), table_name(0),
95 math_column(0), flags_column(0),
96 cas_column(0), exp_column(0), static_flags(0),
97 key_columns(new const char *[nkeys]),
98 value_columns(new const char *[nvals]),
99 external_table(0) {
100 must_free.none = 1;
101 }
102
TableSpec(const char * db,const char * tab,int nkeys,int nvals)103 inline TableSpec::TableSpec(const char *db, const char *tab,
104 int nkeys, int nvals) :
105 nkeycols(nkeys), nvaluecols(nvals),
106 schema_name(db), table_name(tab),
107 math_column(0), flags_column(0),
108 cas_column(0), exp_column(0), static_flags(0),
109 key_columns(new const char *[nkeys]),
110 value_columns(new const char *[nvals]),
111 external_table(0) {
112 must_free.none = 1;
113 }
114
setTable(const char * db,const char * table)115 inline void TableSpec::setTable(const char *db, const char *table) {
116 schema_name = db;
117 table_name = table;
118 must_free.schema_name = 1;
119 must_free.table_name = 1;
120 }
121
isValid()122 inline bool TableSpec::isValid() const {
123 return (schema_name && table_name && nkeycols);
124 }
125
126 #endif
127
128
129