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
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
|
/* Copyright (c) 2003-2007 MySQL AB
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; version 2 of the License.
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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */
#ifndef NdbIndexOperation_H
#define NdbIndexOperation_H
#include "NdbOperation.hpp"
class Index;
class NdbResultSet;
/**
* @class NdbIndexOperation
* @brief Class of index operations for use in transactions
*/
class NdbIndexOperation : public NdbOperation
{
#ifndef DOXYGEN_SHOULD_SKIP_INTERNAL
friend class Ndb;
friend class NdbTransaction;
#endif
public:
/**
* @name Define Standard Operation
* @{
*/
/** insert is not allowed */
int insertTuple();
/**
* Define the NdbIndexOperation to be a standard operation of type readTuple.
* When calling NdbTransaction::execute, this operation
* reads a tuple.
*
* @return 0 if successful otherwise -1.
*/
int readTuple(LockMode);
#ifndef DOXYGEN_SHOULD_SKIP_DEPRECATED
/**
* Define the NdbIndexOperation to be a standard operation of type readTuple.
* When calling NdbTransaction::execute, this operation
* reads a tuple.
*
* @return 0 if successful otherwise -1.
*/
int readTuple();
/**
* Define the NdbIndexOperation to be a standard operation of type
* readTupleExclusive.
* When calling NdbTransaction::execute, this operation
* read a tuple using an exclusive lock.
*
* @return 0 if successful otherwise -1.
*/
int readTupleExclusive();
/**
* Define the NdbIndexOperation to be a standard operation of type simpleRead.
* When calling NdbTransaction::execute, this operation
* reads an existing tuple (using shared read lock),
* but releases lock immediately after read.
*
* @note Using this operation twice in the same transaction
* may produce different results (e.g. if there is another
* transaction which updates the value between the
* simple reads).
*
* Note that simpleRead can read the value from any database node while
* standard read always read the value on the database node which is
* primary for the record.
*
* @return 0 if successful otherwise -1.
*/
int simpleRead();
/**
* Define the NdbOperation to be a standard operation of type committedRead.
* When calling NdbTransaction::execute, this operation
* read latest committed value of the record.
*
* This means that if another transaction is updating the
* record, then the current transaction will not wait.
* It will instead use the latest committed value of the
* record.
*
* @return 0 if successful otherwise -1.
*/
int dirtyRead();
int committedRead();
#endif
/**
* Define the NdbIndexOperation to be a standard operation of type
* updateTuple.
*
* When calling NdbTransaction::execute, this operation
* updates a tuple in the table.
*
* @return 0 if successful otherwise -1.
*/
int updateTuple();
/**
* Define the NdbIndexOperation to be a standard operation of type
* deleteTuple.
*
* When calling NdbTransaction::execute, this operation
* deletes a tuple.
*
* @return 0 if successful otherwise -1.
*/
int deleteTuple();
/**
* Get index object for this operation
*/
const NdbDictionary::Index * getIndex() const;
#ifndef DOXYGEN_SHOULD_SKIP_DEPRECATED
/**
* Define the NdbIndexOperation to be a standard operation of type
* dirtyUpdate.
*
* When calling NdbTransaction::execute, this operation
* updates without two-phase commit.
*
* @return 0 if successful otherwise -1.
*/
int dirtyUpdate();
#endif
#ifndef DOXYGEN_SHOULD_SKIP_INTERNAL
/** @} *********************************************************************/
/**
* @name Define Interpreted Program Operation
* @{
*/
/**
* Update a tuple using an interpreted program.
*
* @return 0 if successful otherwise -1.
*/
int interpretedUpdateTuple();
/**
* Delete a tuple using an interpreted program.
*
* @return 0 if successful otherwise -1.
*/
int interpretedDeleteTuple();
#endif
/** @} *********************************************************************/
private:
NdbIndexOperation(Ndb* aNdb);
~NdbIndexOperation();
int receiveTCINDXREF(NdbApiSignal* aSignal);
// Overloaded methods from NdbCursorOperation
int indxInit(const class NdbIndexImpl* anIndex,
const class NdbTableImpl* aTable,
NdbTransaction*);
// Private attributes
const NdbIndexImpl* m_theIndex;
friend struct Ndb_free_list_t<NdbIndexOperation>;
};
#endif
|
