Software design patterns in Java - Mediator Pattern

Mediator Pattern The essence of the Mediator Pattern is to "define an object that encapsulates how a set of objects interact". It promotes loose coupling by keeping objects from referring to each other explicitly, and it allows their interaction to be varied independently.[3][4] Client classes can use the mediator to send messages to other clients, and can receive messages from other clients via an event on the mediator class.

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