Does @CacheEvict annotation work on private methods?

Question

I am trying to use @Cachable and @CacheEvict for managing redis cache via spring framework. Can one add @CacheEvict on private methods of the class?

Answer 1

@Cacheable is only evaluated when called between beans, even for public methods. Ie for this:

public class MyBean {

@Cacheable
public String getString(int i) {
    return Integer.toString(i);
}
public void myOtherMethod() {
    String myString = getString(2);
}
}

the caching will not be triggered.

Therefore, it does not make sense to declare a private method with @Cacheable.

Note that the same is true for Aspects (as suggested in the other solution); those are not triggered when calling intra-class methods either.