private void PrepareApplicationTransactionServer(bool isInsert)
{
if (!IsApplicationTransactionClient && UseApplicationTransactions && (_openState == DataSetState.Browse))
{
using (IRow row = RememberActive())
{
if (_applicationTransactionID == Guid.Empty)
{
_applicationTransactionID = BeginApplicationTransaction(isInsert);
}
_aTCursor = new DAECursor(_process);
try
{
_aTCursor.OnErrors += new CursorErrorsOccurredHandler(CursorOnErrors);
_aTCursor.Expression = InternalGetExpression();
// Copy the params, but only if they are not already pushed on the process through the FCursor
if ((_cursor == null) || !_cursor.ShouldOpen)
{
_aTCursor.Params.AddRange(_cursor.Params);
}
_aTCursor.Prepare();
try
{
SetParamValues();
_aTCursor.ShouldOpen = ShouldOpenCursor();
_aTCursor.Open();
try
{
if (!isInsert && (row != null))
{
if (!_aTCursor.FindKey(row))
{
throw new ClientException(ClientException.Codes.RecordNotFound);
}
}
}
catch
{
_aTCursor.Close();
throw;
}
}
catch
{
_aTCursor.Unprepare();
throw;
}
}
catch
{
_aTCursor.OnErrors -= new CursorErrorsOccurredHandler(CursorOnErrors);
_aTCursor.Dispose();
_aTCursor = null;
throw;
}
}
}
}
private void StartProcess()
{
ProcessInfo processInfo = new ProcessInfo(_session.SessionInfo);
processInfo.DefaultIsolationLevel = _isolationLevel;
processInfo.FetchAtOpen = ShouldFetchAtOpen();
_process = _session.ServerSession.StartProcess(processInfo);
_cursor = new DAECursor(_process);
_cursor.OnErrors += new CursorErrorsOccurredHandler(CursorOnErrors);
}
private void UnprepareApplicationTransactionServer()
{
Guid iD = _applicationTransactionID;
_applicationTransactionID = Guid.Empty;
if (_openState == DataSetState.Browse)
{
if (_aTCursor != null)
{
_aTCursor.OnErrors -= new CursorErrorsOccurredHandler(CursorOnErrors);
_aTCursor.Dispose();
_aTCursor = null;
}
}
else
{
CloseCursor();
}
}
protected void CursorOnErrors(DAECursor cursor, CompilerMessages messages)
{
ReportErrors(messages);
}
