So I'm using Hibernate with ehcache as a 2nd level cache provider.

In some cases I manually create a Hibernate entity (that is, I'm not loading it from the DB) and then wish to put this entity in the appropriate ehcache cache instance.

And I know ehcache caches based on the org.hibernate.cache.CacheKey of a Hibernate entity.

My question is how do I get the CacheKey of a given object I instantiated myself to use for the cache put?

I see the constructor API doc but am looking for a code example since I'm not sure exactly what I need to pass or if that's even the right way to go about getting a CacheKey.

Hi,

also I am using EHcache as 2nd level cache provider,
but I see absolutely no reason why someone should manually put instances into 2Lcache!
Hibernate does it automatically for you if you define your persistent classes properly.

To be clear, I'm just JPA w/ Hibernate impl.

When I do entityManager.find(Foo.class, 1) the entity IS cached and REPLICATED.

But the issue I'm seeing is that entityManager.persist does not cache the newly created object.

I could do persist then find I guess but I'd prefer to just do the cache put myself.

But perhaps I'm missing something and persist should in fact cache the new entity?

I guess the answer is NOT to use persist... entities passed to persist are NOT cached or replicated :-)

If you call merge in all cases, it will replicate the change. Good enough for me I guess!