如何告诉Spring Cache在@Cacheable注释中缓存异常？

Question

I need 3 separate caches:

• Response with some data
• Null
• Exception

I've already defined the two caches

@Caching(cacheable = {
    @Cacheable(value = "SomeCache", key = "#a1", unless = "#result == null"),
    @Cacheable(value = "SomeNullCache", key = "#a1", unless = "#result != null")})

So, I have to implement the last case.

JSR-107 provides @CacheResult annotation with exceptionCacheName attribute, but how can I do this using Spring Cache? I don't want to combine JSR-107 and Spring Cache.

Answer 1

The cache abstraction does not support caching exception throw by annotated method. Your setup looks very weird to me. Why would you use two different regions for null and non-null values?

Use the standard annotation if you want such setup.

I don't want to combine JSR-107 and Spring Cache.

The id generation being different (to be spec compliant and keeping backward compatibility), I wouldn't recommend such usage. At least not on the same region.