|
584.1.15
by Monty Taylor
The mega-patch from hell. Renamed sql_class to session (since that's what it is) and removed it and field and table from common_includes. |
1 |
/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
|
2 |
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
|
|
3 |
*
|
|
4 |
* Copyright (C) 2008 Sun Microsystems
|
|
5 |
*
|
|
6 |
* This program is free software; you can redistribute it and/or modify
|
|
7 |
* it under the terms of the GNU General Public License as published by
|
|
8 |
* the Free Software Foundation; version 2 of the License.
|
|
9 |
*
|
|
10 |
* This program is distributed in the hope that it will be useful,
|
|
11 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
12 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
13 |
* GNU General Public License for more details.
|
|
14 |
*
|
|
15 |
* You should have received a copy of the GNU General Public License
|
|
16 |
* along with this program; if not, write to the Free Software
|
|
17 |
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
18 |
*/
|
|
19 |
||
20 |
||
21 |
#ifndef DRIZZLED_FOREIGN_KEY_H
|
|
22 |
#define DRIZZLED_FOREIGN_KEY_H
|
|
23 |
||
24 |
#include <drizzled/sql_alloc.h> |
|
25 |
#include <drizzled/key.h> |
|
26 |
#include <drizzled/sql_list.h> |
|
27 |
||
28 |
class Item; |
|
29 |
typedef struct st_mem_root MEM_ROOT; |
|
30 |
||
31 |
class Foreign_key: public Key { |
|
32 |
public: |
|
33 |
enum fk_match_opt { FK_MATCH_UNDEF, FK_MATCH_FULL, |
|
34 |
FK_MATCH_PARTIAL, FK_MATCH_SIMPLE}; |
|
35 |
enum fk_option { FK_OPTION_UNDEF, FK_OPTION_RESTRICT, FK_OPTION_CASCADE, |
|
36 |
FK_OPTION_SET_NULL, FK_OPTION_NO_ACTION, FK_OPTION_DEFAULT}; |
|
37 |
||
38 |
Table_ident *ref_table; |
|
39 |
List<Key_part_spec> ref_columns; |
|
40 |
uint32_t delete_opt, update_opt, match_opt; |
|
41 |
Foreign_key(const LEX_STRING &name_arg, List<Key_part_spec> &cols, |
|
42 |
Table_ident *table, List<Key_part_spec> &ref_cols, |
|
43 |
uint32_t delete_opt_arg, uint32_t update_opt_arg, |
|
44 |
uint32_t match_opt_arg) |
|
45 |
:Key(FOREIGN_KEY, name_arg, &default_key_create_info, 0, cols), |
|
46 |
ref_table(table), ref_columns(ref_cols), |
|
47 |
delete_opt(delete_opt_arg), update_opt(update_opt_arg), |
|
48 |
match_opt(match_opt_arg) |
|
49 |
{}
|
|
50 |
Foreign_key(const Foreign_key &rhs, MEM_ROOT *mem_root); |
|
51 |
/**
|
|
52 |
Used to make a clone of this object for ALTER/CREATE TABLE
|
|
53 |
@sa comment for Key_part_spec::clone
|
|
54 |
*/
|
|
55 |
virtual Key *clone(MEM_ROOT *mem_root) const |
|
56 |
{ return new (mem_root) Foreign_key(*this, mem_root); } |
|
57 |
/* Used to validate foreign key options */
|
|
58 |
bool validate(List<Create_field> &table_fields); |
|
59 |
};
|
|
60 |
||
61 |
#endif /* DRIZZLED_FOREIGN_KEY_H */ |