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TdsTransaction.cs
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TdsTransaction.cs
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//
// Mono.Data.TdsClient.TdsTransaction.cs
//
// Author:
// Tim Coleman (tim@timcoleman.com)
//
// Copyright (C) Tim Coleman, 2002
//
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Data;
using System.Data.Common;
namespace Mono.Data.TdsClient {
public sealed class TdsTransaction : MarshalByRefObject, IDbTransaction, IDisposable
{
#region Fields
bool disposed = false;
TdsConnection connection;
IsolationLevel isolationLevel;
bool isOpen;
#endregion
#region Constructors
internal TdsTransaction (TdsConnection connection, IsolationLevel isolevel)
{
this.connection = connection;
this.isolationLevel = isolevel;
isOpen = true;
}
#endregion // Constructors
#region Properties
public TdsConnection Connection {
get { return connection; }
}
internal bool IsOpen {
get { return isOpen; }
}
public IsolationLevel IsolationLevel {
get { return isolationLevel; }
}
IDbConnection IDbTransaction.Connection {
get { return Connection; }
}
#endregion // Properties
#region Methods
public void Commit ()
{
if (!isOpen)
throw new InvalidOperationException ("The Transaction was not open.");
connection.Tds.Execute ("COMMIT TRANSACTION");
connection.Transaction = null;
isOpen = false;
}
private void Dispose (bool disposing)
{
if (!disposed) {
if (disposing)
Rollback ();
disposed = true;
}
}
public void Dispose ()
{
Dispose (true);
GC.SuppressFinalize (this);
}
public void Rollback ()
{
Rollback (String.Empty);
}
public void Rollback (string transactionName)
{
if (!isOpen)
throw new InvalidOperationException ("The Transaction was not open.");
connection.Tds.Execute (String.Format ("ROLLBACK TRANSACTION {0}", transactionName));
isOpen = false;
}
public void Save (string savePointName)
{
if (!isOpen)
throw new InvalidOperationException ("The Transaction was not open.");
connection.Tds.Execute (String.Format ("SAVE TRANSACTION {0}", savePointName));
}
#endregion // Methods
}
}