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/*
* transaction.hpp
*
* Copyright (C) 2009 Tim Marston <edam@waxworlds.org>
*
* This file is part of sqlitepp (hereafter referred to as "this program").
* See http://www.waxworlds.org/edam/software/sqlitepp for more information.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 3 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef TRANSACTION_HPP_
#define TRANSACTION_HPP_
#include <boost/utility.hpp>
namespace sqlite
{
class database;
class transaction
:
private boost::noncopyable
{
//______________________________________________________________________________
// instantiation
public:
/**
* Constructor that provides a database upon which to act
* @param database a database
*/
transaction(
database &database );
virtual ~transaction() throw( );
protected:
/**
* Constructor that provides a way for deriving classes to override the SQL
* executed in beginning and rolling-back a transaction during construction
* and destruction.
* @param database a database
* @param begin_sql the SQL statement used to begin the transaction
* @param rollback_sql the SQL statement used to rollback the transaction,
* or an empty string if the default is to be used.
*/
transaction(
database &database,
const std::string &begin_sql,
const std::string &rollback_sql = "" );
//______________________________________________________________________________
// public interface
/**
* Commit the transaction
*/
virtual void commit();
/**
* Rollback the transaction
*/
void rollback();
//______________________________________________________________________________
// implementation
protected:
/** the database */
database &_database;
/** the SQL used to rollback the transaction, or empty to use default */
std::string _rollback_sql;
};
////////////////////////////////////////////////////////////////////////////////
class exclusive_transaction
:
public transaction
{
//______________________________________________________________________________
// instantiation
public:
/**
* Constructor that provides a database upon which to act
* @param database a database
*/
exclusive_transaction(
database &database );
};
}
#endif /* TRANSACTION_HPP_ */
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