[Solved] Given this method annotated with @CachePut: @CachePut(value = "sessions", key = "#session.... } What happens if refreshSession is called multiple times with the same session object? | Spring Boot

Spring Boot - Caching

Given this method annotated with @CachePut:

@CachePut(value = "sessions", key = "#session.id")
public Session refreshSession(Session session) {
    session.setActive(true);
    return session;
}

What happens if refreshSession is called multiple times with the same session object?

AThe cache entry for that session ID is updated each time with the latest session object.

BThe cache is updated only the first time; subsequent calls do not affect the cache.

CThe cache entry is removed after the first call.

DAn exception is thrown because the cache key is reused.

Step-by-Step Solution

Solution:

Step 1: Understand @CachePut behavior
@CachePut updates the cache entry every time the method is called, regardless of existing cache content.
Step 2: Analyze repeated calls
Calling with the same key updates the cache with the new return value each time.
Final Answer:
The cache entry for that session ID is updated each time with the latest session object. -> Option A
Quick Check:
@CachePut always refreshes cache entry [OK]

Quick Trick: Cache updates on every method call [OK]

Common Mistakes:

Assuming cache updates only once
Thinking cache entry is removed
Believing key reuse causes errors

Master "Caching" in Spring Boot

9 interactive learning modes - each teaches the same concept differently

Learn Why Deep Visual Try Challenge Project Recall Perf

More Spring Boot Quizzes

Given this method annotated with @CachePut:

Step 1: Understand @CachePut behavior

Step 2: Analyze repeated calls

Final Answer:

Quick Check:

Want More Practice?