A developer implemented the Chain of Responsibility pattern but notices that requests are not handled properly. What is a likely cause?

medium📝 Analysis Q14 of Q15

LLD - Behavioral Design Patterns — Part 2

AHandlers are tightly coupled and call each other directly.

BAll handlers process the request simultaneously causing conflicts.

CThe chain is broken because a handler does not pass the request forward.

DThe pattern requires all handlers to be singletons.

Step-by-Step Solution

Solution:

Step 1: Review Chain of Responsibility behavior
Requests pass along a chain until a handler processes it or passes it on.
Step 2: Identify common error
If a handler fails to forward unhandled requests, the chain breaks and requests stop prematurely.
Final Answer:
The chain is broken because a handler does not pass the request forward. -> Option C
Quick Check:
Broken chain = missing forwarding [OK]

Quick Trick: Ensure each handler forwards unhandled requests [OK]

Common Mistakes:

MISTAKES

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