61 lines
1.3 KiB
C++
61 lines
1.3 KiB
C++
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/**
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* @file Transaction.cpp
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* @ingroup SQLiteCpp
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* @brief A Transaction is way to group multiple SQL statements into an atomic secured operation.
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*
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* Copyright (c) 2012-2013 Sebastien Rombauts (sebastien.rombauts@gmail.com)
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*
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* Distributed under the MIT License (MIT) (See accompanying file LICENSE.txt
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* or copy at http://opensource.org/licenses/MIT)
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*/
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#include <SQLiteCpp/Transaction.h>
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#include <SQLiteCpp/Database.h>
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#include <SQLiteCpp/Assertion.h>
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namespace SQLite
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{
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// Begins the SQLite transaction
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Transaction::Transaction(Database& aDatabase) :
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mDatabase(aDatabase),
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mbCommited(false)
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{
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mDatabase.exec("BEGIN");
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}
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// Safely rollback the transaction if it has not been committed.
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Transaction::~Transaction()
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{
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if (false == mbCommited)
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{
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try
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{
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mDatabase.exec("ROLLBACK");
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}
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catch (SQLite::Exception&)
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{
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// Never throw an exception in a destructor: error if already rollbacked, but no harm is caused by this.
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}
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}
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}
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// Commit the transaction.
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void Transaction::commit()
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{
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if (false == mbCommited)
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{
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mDatabase.exec("COMMIT");
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mbCommited = true;
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}
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else
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{
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throw SQLite::Exception("Transaction already commited.");
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}
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}
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} // namespace SQLite
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