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424 B
424 B
Mediator
Purpose
This pattern provides an easy to decouple many components working together. It is a good alternative over Observer IF you have a "central intelligence", like a controller (but not in the sense of the MVC).
All components (called Colleague) are only coupled to the MediatorInterface and it is a good thing because in OOP, one good friend is better than many. This is the key-feature of this pattern.