The Chain of Responsibility Design Pattern in Java is a powerful behavioral pattern that helps you decouple the sender of a request from its receiver. Instead of hardcoding a single handler, you can pass the request through a chain of handlers until one processes it.
🎯 In this video, you’ll learn:
✅ What is the Chain of Responsibility Pattern in Java
✅ Real-world use cases:
1) Interview process approvals
2) Code/documentation reviews
3) Logging systems
✅ Types of chains:
1) Chain Breaker (first one to handle it)
2) Exactly One Handler
3) All Handlers (broadcast-style)
✅ When to use it:
1) You need a chain of processing steps, each responsible for a small part
2) You want to decouple the client from the exact handler implementation
✅ UML diagram to visualize the pattern
✅ Java code example with clean, modular structure
📚 Based on: https://nailyourinterview.org/interview-resources/low-level-design/behavioral-design-patterns/chain-of-responsibility
Timestamps
0:00 Intro
0:30 Example 1
4:00 Example 2
5:45 Example 3
6:30 COR vs Decorator
8:40 When to use?
11:30 UML Diagram
14:20 Code
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