Akonadi

transaction.cpp
1 /*
2  Copyright (c) 2006 Volker Krause <[email protected]>
3 
4  This library is free software; you can redistribute it and/or modify it
5  under the terms of the GNU Library General Public License as published by
6  the Free Software Foundation; either version 2 of the License, or (at your
7  option) any later version.
8 
9  This library is distributed in the hope that it will be useful, but WITHOUT
10  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
12  License for more details.
13 
14  You should have received a copy of the GNU Library General Public License
15  along with this library; see the file COPYING.LIB. If not, write to the
16  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
17  02110-1301, USA.
18 */
19 
20 #include "transaction.h"
21 #include "storage/datastore.h"
22 
23 using namespace Akonadi::Server;
24 
25 Transaction::Transaction(DataStore *db, const QString &name, bool beginTransaction)
26  : mDb(db)
27  , mName(name)
28  , mCommitted(false)
29 {
30  if (beginTransaction) {
31  mDb->beginTransaction(mName);
32  }
33 }
34 
36 {
37  if (!mCommitted) {
38  mDb->rollbackTransaction();
39  }
40 }
41 
43 {
44  mCommitted = true;
45  return mDb->commitTransaction();
46 }
47 
48 void Transaction::begin()
49 {
50  mDb->beginTransaction(mName);
51 }
~Transaction()
Rolls back the transaction if it hasn&#39;t been committed explicitly.
Definition: transaction.cpp:35
virtual bool beginTransaction(const QString &name)
Begins a transaction.
Definition: datastore.cpp:1389
bool commit()
Commits the transaction.
Definition: transaction.cpp:42
virtual bool commitTransaction()
Commits all changes within the current transaction and emits all collected notfication signals...
Definition: datastore.cpp:1458
virtual bool rollbackTransaction()
Reverts all changes within the current transaction.
Definition: datastore.cpp:1436
This class handles all the database access.
Definition: datastore.h:108
Transaction(DataStore *db, const QString &name, bool beginTransaction=true)
Starts a new transaction.
Definition: transaction.cpp:25
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