LLD - Behavioral Design Patterns — Part 2
Identify the error in this Mediator pattern snippet: The mediator directly accesses private fields of components to send messages.
Identify the error in this Mediator pattern snippet: The mediator directly accesses private fields of components to send messages.
medium📝 Analysis Q6 of 15
Step-by-Step Solution
Solution:
Step 1: Understand encapsulation principle
Private fields should not be accessed directly outside their class to maintain encapsulation.Step 2: Apply to Mediator pattern
Mediator should communicate via public methods, not private fields, to respect encapsulation.Final Answer:
Mediator should use public methods, not access private fields -> Option DQuick Check:
Respect encapsulation in Mediator = A [OK]
Quick Trick: Mediator uses public interfaces, not private fields [OK]
Common Mistakes:
MISTAKES- Allowing mediator to access private fields
- Thinking direct access improves efficiency
- Ignoring encapsulation principles
Master "Behavioral Design Patterns — Part 2" in LLD
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore LLD Quizzes