protected SessionImpl(final ConnectionImpl connection, final AcknowledgeMode acknowledgeMode)
{
_connection = connection;
_acknowledgeMode = acknowledgeMode;
Connection clientConn = _connection.getClientConnection();
_session = clientConn.createSession();
if(_acknowledgeMode == AcknowledgeMode.SESSION_TRANSACTED)
{
_txn = _session.createSessionLocalTransaction();
}