|
1475.1.1
by Padraig O'Sullivan
Added interface and various implementations to abstract out the concept of an access method. Also added a factory class for creating an instance of an access method. |
1 |
/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
|
2 |
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
|
|
3 |
*
|
|
4 |
* Copyright (C) 2010 Padraig O'Sullivan
|
|
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; either version 2 of the License, or
|
|
9 |
* (at your option) any later version.
|
|
10 |
*
|
|
11 |
* This program is distributed in the hope that it will be useful,
|
|
12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
14 |
* GNU General Public License for more details.
|
|
15 |
*
|
|
16 |
* You should have received a copy of the GNU General Public License
|
|
17 |
* along with this program; if not, write to the Free Software
|
|
18 |
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
19 |
*/
|
|
20 |
||
21 |
#ifndef DRIZZLED_OPTIMIZER_ACCESS_METHOD_FACTORY_H
|
|
22 |
#define DRIZZLED_OPTIMIZER_ACCESS_METHOD_FACTORY_H
|
|
23 |
||
24 |
#include "drizzled/definitions.h" |
|
25 |
#include "drizzled/error.h" |
|
26 |
#include "drizzled/sql_parse.h" |
|
27 |
#include "drizzled/sql_base.h" |
|
28 |
#include "drizzled/join_table.h" |
|
29 |
#include "drizzled/optimizer/access_method.h" |
|
30 |
||
|
1475.1.4
by Padraig O'Sullivan
Used shared_ptr for the pointer returned from the factory method since we can use boost now...yay |
31 |
#include <boost/shared_ptr.hpp> |
32 |
||
|
1475.1.1
by Padraig O'Sullivan
Added interface and various implementations to abstract out the concept of an access method. Also added a factory class for creating an instance of an access method. |
33 |
/* Forward declarations */
|
34 |
class Table; |
|
35 |
class JoinTable; |
|
36 |
||
37 |
namespace drizzled |
|
38 |
{
|
|
39 |
namespace optimizer |
|
40 |
{
|
|
41 |
||
42 |
/**
|
|
43 |
* @class AccessMethodFactory
|
|
44 |
* @brief Creates access method objects
|
|
45 |
*/
|
|
46 |
class AccessMethodFactory |
|
47 |
{
|
|
48 |
public: |
|
49 |
||
50 |
static AccessMethodFactory &singleton() |
|
51 |
{
|
|
52 |
static AccessMethodFactory fact; |
|
53 |
return fact; |
|
54 |
}
|
|
55 |
||
|
1475.1.4
by Padraig O'Sullivan
Used shared_ptr for the pointer returned from the factory method since we can use boost now...yay |
56 |
boost::shared_ptr<AccessMethod> createAccessMethod(enum access_method type); |
|
1475.1.1
by Padraig O'Sullivan
Added interface and various implementations to abstract out the concept of an access method. Also added a factory class for creating an instance of an access method. |
57 |
|
58 |
private: |
|
59 |
||
60 |
AccessMethodFactory() {} |
|
61 |
||
62 |
~AccessMethodFactory() {} |
|
63 |
||
64 |
AccessMethodFactory(const AccessMethodFactory&); |
|
65 |
};
|
|
66 |
||
67 |
} /* end namespace optimizer */ |
|
68 |
||
69 |
} /* end namespace drizzled */ |
|
70 |
||
71 |
#endif /* DRIZZLED_OPTIMIZER_ACCESS_METHOD_FACTORY_H */ |