@CachePut for updating cache in Spring Boot - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of the @CachePut annotation in Spring Boot?

The @CachePut annotation updates the cache with the method's result every time the method is called, without skipping the method execution.

beginner

How does @CachePut differ from @Cacheable in Spring Boot caching?

@Cacheable skips method execution if the cache has the value, while @CachePut always executes the method and updates the cache with the new result.

beginner

Which attribute of @CachePut specifies the cache name to update?

The 'value' or 'cacheNames' attribute specifies the cache name where the result will be stored or updated.

intermediate

Can @CachePut be used to update multiple caches at once?

Yes, by specifying multiple cache names in the 'value' or 'cacheNames' attribute as an array, @CachePut can update multiple caches simultaneously.

intermediate

Why is @CachePut useful when updating data in a database?

Because it ensures the cache is updated with the latest data after a database update, keeping cache and database in sync without skipping method execution.

What happens when a method annotated with @CachePut is called?

A The method executes and the cache is updated with the result.

B The method is skipped if cache has the value.

C The cache is cleared before method execution.

D The cache is never updated.

@CachePut always executes the method and updates the cache with the new result.

Which attribute do you use to specify the cache name in @CachePut?

A cacheKey

B cacheName

C value

D cacheStore

The 'value' or 'cacheNames' attribute specifies the cache name in @CachePut.

Can @CachePut be used to update the cache without executing the method?

A Yes, it skips method execution.

B Only with a special flag.

C Only if cache is empty.

D No, it always executes the method.

@CachePut always executes the method and then updates the cache.

Why might you choose @CachePut over @Cacheable when updating data?

A To update cache with fresh data after changes.

B To avoid method execution.

C To clear the cache.

D To disable caching.

@CachePut updates the cache with fresh data after method execution, useful when data changes.

How do you update multiple caches with @CachePut?

A Use multiple @CachePut annotations.

B Specify multiple cache names in the 'value' attribute as an array.

C Call the method multiple times.

D It is not possible.

You can specify multiple cache names in the 'value' or 'cacheNames' attribute as an array.

Explain how @CachePut works and when you would use it in a Spring Boot application.

Think about keeping cache and database data in sync.

Describe the difference between @CachePut and @Cacheable annotations in Spring Boot caching.

Focus on method execution and cache update differences.