Mediator Pattern

Definitions

1. A behavioral design pattern in which a central mediator object encapsulates how a set of objects interact, preventing them from referring to each other directly. Components send messages to the mediator, which routes and coordinates responses, reducing the dependency graph from a mesh to a star.

   In plain English: A central coordinator that handles communication between components so they don't need to know about each other directly.

   Example: "The chat room is a mediator — users don't hold references to each other, they just post to the room and it broadcasts."

Related Terms

• Late Binding
• Liskov Substitution Principle
• Null Object Pattern
• Object Graph
• Open-Closed Principle
• Prototype Pattern
• Proxy Pattern
• Render Props
• Service Locator
• Software Design
• Specification Pattern
• State Pattern
• Structural Pattern
• Template Method Pattern
• Unit of Work
• Utility Class
• Value Object
• Visitor Pattern