I have a message routing to implement, which has routes that vary according to the message content. Some strands of the route are dependent on other.
If for example I have Data_A which has Task_A and Task_B to be performed on it. Whereas Data_B has only Task_B to be performed on it.
Here each Task has a queue served by consumers.
If Task_A should be performed only after Task_B if Task_B is requested on the data, how do I set-up such dependencies?