1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
/*
* Copyright (C) 2008-2013 TrinityCore <http://www.trinitycore.org/>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _PREPAREDSTATEMENT_H
#define _PREPAREDSTATEMENT_H
#include "SQLOperation.h"
#include <ace/Future.h>
#ifdef __APPLE__
#undef TYPE_BOOL
#endif
//- Union for data buffer (upper-level bind -> queue -> lower-level bind)
union PreparedStatementDataUnion
{
bool boolean;
uint8 ui8;
int8 i8;
uint16 ui16;
int16 i16;
uint32 ui32;
int32 i32;
uint64 ui64;
int64 i64;
float f;
double d;
};
//- This enum helps us differ data held in above union
enum PreparedStatementValueType
{
TYPE_BOOL,
TYPE_UI8,
TYPE_UI16,
TYPE_UI32,
TYPE_UI64,
TYPE_I8,
TYPE_I16,
TYPE_I32,
TYPE_I64,
TYPE_FLOAT,
TYPE_DOUBLE,
TYPE_STRING,
TYPE_NULL
};
struct PreparedStatementData
{
PreparedStatementDataUnion data;
PreparedStatementValueType type;
std::string str;
};
//- Forward declare
class MySQLPreparedStatement;
//- Upper-level class that is used in code
class PreparedStatement
{
friend class PreparedStatementTask;
friend class MySQLPreparedStatement;
friend class MySQLConnection;
public:
explicit PreparedStatement(uint32 index);
~PreparedStatement();
void setBool(const uint8 index, const bool value);
void setUInt8(const uint8 index, const uint8 value);
void setUInt16(const uint8 index, const uint16 value);
void setUInt32(const uint8 index, const uint32 value);
void setUInt64(const uint8 index, const uint64 value);
void setInt8(const uint8 index, const int8 value);
void setInt16(const uint8 index, const int16 value);
void setInt32(const uint8 index, const int32 value);
void setInt64(const uint8 index, const int64 value);
void setFloat(const uint8 index, const float value);
void setDouble(const uint8 index, const double value);
void setString(const uint8 index, const std::string& value);
void setNull(const uint8 index);
protected:
void BindParameters();
protected:
MySQLPreparedStatement* m_stmt;
uint32 m_index;
std::vector<PreparedStatementData> statement_data; //- Buffer of parameters, not tied to MySQL in any way yet
};
//- Class of which the instances are unique per MySQLConnection
//- access to these class objects is only done when a prepared statement task
//- is executed.
class MySQLPreparedStatement
{
friend class MySQLConnection;
friend class PreparedStatement;
public:
MySQLPreparedStatement(MYSQL_STMT* stmt);
~MySQLPreparedStatement();
void setBool(const uint8 index, const bool value);
void setUInt8(const uint8 index, const uint8 value);
void setUInt16(const uint8 index, const uint16 value);
void setUInt32(const uint8 index, const uint32 value);
void setUInt64(const uint8 index, const uint64 value);
void setInt8(const uint8 index, const int8 value);
void setInt16(const uint8 index, const int16 value);
void setInt32(const uint8 index, const int32 value);
void setInt64(const uint8 index, const int64 value);
void setFloat(const uint8 index, const float value);
void setDouble(const uint8 index, const double value);
void setString(const uint8 index, const char* value);
void setNull(const uint8 index);
protected:
MYSQL_STMT* GetSTMT() { return m_Mstmt; }
MYSQL_BIND* GetBind() { return m_bind; }
PreparedStatement* m_stmt;
void ClearParameters();
bool CheckValidIndex(uint8 index);
std::string getQueryString(std::string const &sqlPattern) const;
private:
void setValue(MYSQL_BIND* param, enum_field_types type, const void* value, uint32 len, bool isUnsigned);
private:
MYSQL_STMT* m_Mstmt;
uint32 m_paramCount;
std::vector<bool> m_paramsSet;
MYSQL_BIND* m_bind;
};
typedef ACE_Future<PreparedQueryResult> PreparedQueryResultFuture;
//- Lower-level class, enqueuable operation
class PreparedStatementTask : public SQLOperation
{
public:
PreparedStatementTask(PreparedStatement* stmt);
PreparedStatementTask(PreparedStatement* stmt, PreparedQueryResultFuture result);
~PreparedStatementTask();
bool Execute();
protected:
PreparedStatement* m_stmt;
bool m_has_result;
PreparedQueryResultFuture m_result;
};
#endif
|
