Drizzled Public API Documentation
Main Page
Related Pages
Modules
Namespaces
Classes
Files
File List
File Members
sargable_param.h
1
/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
2
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
3
*
4
* Copyright (C) 2009 Sun Microsystems, Inc.
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
#pragma once
21
22
namespace
drizzled
23
{
24
namespace
optimizer
25
{
26
40
class
SargableParam
41
{
42
public
:
43
SargableParam
()
44
:
45
field
(NULL),
46
arg_value
(NULL),
47
num_values
(0)
48
{}
49
50
SargableParam
(
Field
*in_field,
51
Item
**in_arg_value,
52
uint32_t in_num_values)
53
:
54
field
(in_field),
55
arg_value
(in_arg_value),
56
num_values
(in_num_values)
57
{}
58
59
SargableParam
(
const
SargableParam
&rhs)
60
:
61
field
(rhs.
field
),
62
arg_value
(rhs.
arg_value
),
63
num_values
(rhs.
num_values
)
64
{}
65
66
SargableParam
&operator=(
const
SargableParam
&rhs)
67
{
68
if
(
this
== &rhs)
69
{
70
return
*
this
;
71
}
72
field
= rhs.
field
;
73
arg_value
= rhs.
arg_value
;
74
num_values
= rhs.
num_values
;
75
return
*
this
;
76
}
77
78
Field
*getField()
79
{
80
return
field
;
81
}
82
83
uint32_t getNumValues()
const
84
{
85
return
num_values
;
86
}
87
88
bool
isConstItem(uint32_t index)
89
{
90
return
(
arg_value
[index]->const_item());
91
}
92
93
private
:
94
98
Field
*
field
;
99
103
Item
**
arg_value
;
104
108
uint32_t
num_values
;
109
};
110
111
}
/* end namespace optimizer */
112
113
}
/* end namespace drizzled */
114
drizzled
optimizer
sargable_param.h
Generated on Thu Aug 29 2013 10:00:28 for drizzle by
1.8.4