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 the complexity of communication between multiple objects. Best practices include: 1. Keep the Mediator focused on communication, not business logic. 2. Ensure that the Mediator is not overloaded with too many responsibilities. 3. Use clear interfaces for communication between components.

Can you give an example of how to implement it?

Sure! For instance, in a chat application, the Mediator could be a ChatRoom class that handles messages between User objects. Each User sends messages to the ChatRoom, which then distributes them to other Users.

What are the benefits of using the Mediator pattern?

The benefits include reduced coupling between components, easier maintenance, and improved scalability. It centralizes communication, making it easier to manage.

Are there any drawbacks to using this pattern?

Yes, potential drawbacks include the risk of creating a 'God Object' if the Mediator becomes too complex, and it may also introduce a single point of failure in the system.