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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #include "app/sql/transaction.h"
6 
7 #include "app/sql/connection.h"
8 #include "base/logging.h"
9 
10 namespace sql {
11 
Transaction(Connection * connection)12 Transaction::Transaction(Connection* connection)
13     : connection_(connection),
14       is_open_(false) {
15 }
16 
~Transaction()17 Transaction::~Transaction() {
18   if (is_open_)
19     connection_->RollbackTransaction();
20 }
21 
Begin()22 bool Transaction::Begin() {
23   if (is_open_) {
24     NOTREACHED() << "Beginning a transaction twice!";
25     return false;
26   }
27   is_open_ = connection_->BeginTransaction();
28   return is_open_;
29 }
30 
Rollback()31 void Transaction::Rollback() {
32   if (!is_open_) {
33     NOTREACHED() << "Attempting to roll back a nonexistent transaction. "
34                  << "Did you remember to call Begin() and check its return?";
35     return;
36   }
37   is_open_ = false;
38   connection_->RollbackTransaction();
39 }
40 
Commit()41 bool Transaction::Commit() {
42   if (!is_open_) {
43     NOTREACHED() << "Attempting to commit a nonexistent transaction. "
44                  << "Did you remember to call Begin() and check its return?";
45     return false;
46   }
47   is_open_ = false;
48   return connection_->CommitTransaction();
49 }
50 
51 }  // namespace sql
52