How to clear all Hibernate cache (ehcache) using Spring?

Question

I am using 2nd level cache and query cache. May I know how to programmatically clear all caches ?

Answer 1

@Dino 's answer almost worked for me but I got an error from sessionFactory.getCurrentSession() (No currentSessionContext configured!). I found this worked for me:

    // Use @Autowired EntityManager em
    em.getEntityManagerFactory().getCache().evictAll();

    // All of the following require org.hibernate imports
    Session session = em.unwrap(Session.class);

    if (session != null) {
        session.clear(); // internal cache clear
    }

    SessionFactory sessionFactory = em.getEntityManagerFactory().unwrap(SessionFactory.class);

    Cache cache = sessionFactory.getCache();

    if (cache != null) {
        cache.evictAllRegions(); // Evict data from all query regions.
    }