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// ByteFX.Data data access components for .Net
// Copyright (C) 2002-2003 ByteFX, Inc.
//
// This library 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 2.1 of the License, or (at your option) any later version.
//
// This library 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 library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
using System;
using System.Data;
namespace ByteFX.Data.MySqlClient
{
public class MySqlTransaction : IDbTransaction
{
private IsolationLevel _level;
private MySqlConnection _conn;
private bool _open;
internal MySqlTransaction()
{
_open = true;
}
public IsolationLevel IsolationLevel
{
get { return _level; }
set { _level = value; }
}
public IDbConnection Connection
{
get { return _conn; }
set { _conn = (MySqlConnection)value; }
}
public void Dispose()
{
}
public void Commit()
{
if (_conn == null || _conn.State != ConnectionState.Open)
throw new InvalidOperationException("Connection must be valid and open to commit transaction");
if (!_open)
throw new InvalidOperationException("Transaction has already been committed or is not pending");
Driver d = _conn.InternalConnection.Driver;
try
{
d.SendCommand(DBCmd.QUERY, "COMMIT");
_open = false;
}
catch (MySqlException ex)
{
throw ex;
}
}
public void Rollback()
{
if (_conn == null || _conn.State != ConnectionState.Open)
throw new InvalidOperationException("Connection must be valid and open to commit transaction");
if (!_open)
throw new InvalidOperationException("Transaction has already been rolled back or is not pending");
Driver d = _conn.InternalConnection.Driver;
try
{
d.SendCommand(DBCmd.QUERY, "ROLLBACK");
_open = false;
}
catch (MySqlException ex)
{
throw ex;
}
}
}
}
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