Hello everyone,

I wanted to know, what are the best practices for tying together a
relatively complex user interface in the MVP design pattern. Here's
the problem:

Most applications have a relatively complex object graph where a top
level domain object will contain a number of domain objects, which in
turn contain other domain objects. Lets take Customer for example. A
Customer has an Account object, which itself contains a Bank object
and a Package object. In the MVP world, you have a View and a
Presenter for Package and Bank. You'd also have the same
View/Presenter combination for Account, but if the View for Package
and Bank have to appear in the same interface as Account, how does one
tie them together?

We had originally done it by tying the Views together, however, we've
got to a point where we have a View but no Presenter to back it. The
solution is to tie the Presenters together, but the question is, do we
really want all these Presenters tightly coupled to each other? One
can argue that the models contain one another, so it would make sense
that the Presenters/Views would contain one another too. However, this
becomes harder to customize with all the coupling. We're also
following Ray's idea of an EventBus, so we were hoping to keep
Presenters from knowing about each other. Is this not feasible within
one object graph? Any ideas would be greatly appreciated. Thank you.

Best regards,
--
Arthur Kalmenson

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