Architecture & LLD

Mediator Pattern

Architecture & LLD Preview

Mediator Pattern

Define an object that encapsulates how a set of objects interact to promote loose coupling.

Mediator pattern routes all colleague aircraft notifications through a central control tower coordinator.

Core Design Challenge

"How do we coordinate landing runway allocations among multiple planes without creating peer-to-peer spaghetti references?"

What You'll Learn:

  • Reducing peer-to-peer spaghetti references between objects
  • Routing colleague notifications through a central coordinator
  • Decreasing coupling from O(N²) links to O(N) connections
  • Consolidating interaction protocols into a single mediator class
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