Java Design Patterns: A Hands-On Experience with Real-World Examples

© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2022

V. SarcarJava Design Patternshttps://doi.org/10.1007/978-1-4842-7971-7_23

23. Mediator Pattern

Vaskaran Sarcar¹  

(1)

Garia, Kolkata, India

 

This chapter covers the Mediator pattern.

GoF Definition

It defines an object that encapsulates how a set of objects interact. The Mediator pattern promotes loose coupling by keeping objects from referring to each other explicitly, and it lets you vary their interaction independently.

Concept

A mediator is an intermediary through whom different objects talk to each other. It takes responsibility for controlling and coordinating the interactions of a specific group of objects that cannot refer to each other explicitly. As a ...