What is the Mediator Design Pattern?

A mediator design pattern is one of the important and widely used behavioral design patterns. Mediator enables the decoupling of objects by introducing a layer in between so that the interaction between objects happens via the layer. Real Life

• If the objects interact with each other directly, the system components are tightly coupled with each other making higher maintainability cost and not hard to extend.
• The mediator pattern focuses on providing a mediator between objects for communication and helps in implementing loose coupling between objects.

It defines how a mediator object facilitates the interaction between other objects, guiding their behavior and communication without them being directly aware of each other. This pattern emphasizes the behavior and communication patterns among objects.

The Mediator design pattern is a behavioral pattern that defines an object, the mediator, to centralize communication between various components or objects in a system. This promotes loose coupling by preventing direct interactions between components, instead of having them communicate through the mediator, facilitating better maintainability and flexibility in the system architecture.