Which of the following is the correct way to publish a custom event using ApplicationEventPublisher?

easy📝 Conceptual Q2 of 15

Spring Boot - Advanced Patterns

Which of the following is the correct way to publish a custom event using ApplicationEventPublisher?

AapplicationEventPublisher.publishEvent(new CustomEvent(this));

BapplicationEventPublisher.sendEvent(new CustomEvent());

CapplicationEventPublisher.fireEvent(new CustomEvent(this));

DapplicationEventPublisher.triggerEvent(new CustomEvent());

Step-by-Step Solution

Solution:

Step 1: Recall the method to publish events
The correct method is publishEvent() which takes an event object as argument.
Step 2: Check method signatures
Only applicationEventPublisher.publishEvent(new CustomEvent(this)); uses publishEvent() with a proper event instance including the source.
Final Answer:
applicationEventPublisher.publishEvent(new CustomEvent(this)); -> Option A
Quick Check:
Publish event method = publishEvent() [OK]

Quick Trick: Use publishEvent() method to send events [OK]

Common Mistakes:

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