Apache.NMS.ActiveMQ.State.TransactionState.addCommand C# (CSharp) Метод

        public void addCommand(Command operation)
        {
            checkShutdown();
            commands.Add(operation);
        }

 public override Response processMessage(Message send)
 {
     if (send != null)
     {
         if (TrackTransactions && send.TransactionId != null)
         {
             ConnectionId connectionId = send.ProducerId.ParentId.ParentId;
             if (connectionId != null)
             {
                 ConnectionState cs = connectionStates[connectionId];
                 if (cs != null)
                 {
                     TransactionState transactionState = cs[send.TransactionId];
                     if (transactionState != null)
                     {
                         transactionState.addCommand(send);
                     }
                 }
             }
             return(TRACKED_RESPONSE_MARKER);
         }
         else if (TrackMessages)
         {
             messageCache.Add(send.MessageId, (Message)send.Clone());
             RemoveEldestInCache();
         }
     }
     return(null);
 }