Lose call flow in mediator example

[cash0211]

In Mediator case, just have the MessageMediator broadcast the message to all Programmers. But In GOF, mediator structure like below:

Apparently, programmers need to communicate with each other, so they also need to hold the MessageMediator.
Looking forward to your reply, thanks.

[ochococo]

Thanks for starting the discussion! Can you elaborate a little bit more @cash0211 ?