What are the best practices for implementing the Mediator pattern?

What are the best practices for implementing the Mediator pattern?

The Mediator pattern is used to reduce dependencies between objects. Best practices include keeping the mediator focused on communication, avoiding complex logic within it, and ensuring it doesn't become a god object.

Can you give an example of how to use the Mediator pattern in a real application?

Sure! In a chat application, the Mediator can manage the communication between different users, ensuring that messages are sent and received without users needing to know about each other directly.

What are the common pitfalls to avoid when using the Mediator pattern?

Common pitfalls include making the mediator too complex, which can lead to maintenance issues, and not properly encapsulating the communication logic, which can result in tight coupling.

How does the Mediator pattern compare to other design patterns?

The Mediator pattern is unique in that it centralizes communication between components, unlike patterns like Observer, which promote direct communication. It's particularly useful in reducing dependencies.