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javajpaentitymanager

Difference between evictAll and refresh

What is the difference between evictAll and refresh :

em.getEntityManagerFactory().getCache().evict(AdminUtilisateur.class, user);

and 

em.refresh(em.getReference(AdminUtilisateur.class, user.getId()));

And when should i use each one?

Thank you.

Solution

  • evict : Mark an instance as no longer needed in the cache.

    refresh : Refresh the state of the instance from the database, overwriting changes made to the entity