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

The code snippet indicated in Bozho answer is deprecated in Hibernate 4.

According to Hibernate JavaDoc, you can use org.hibernate.Cache.evictAllRegions() :

Evict data from all query regions.

Using the API :

Session session = sessionFactory.getCurrentSession();

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

Cache cache = sessionFactory.getCache();

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

Alternatively, you can clear all data from a specific scope :

org.hibernate.Cache.evictCollectionRegions()
org.hibernate.Cache.evictDefaultQueryRegion()
org.hibernate.Cache.evictEntityRegions()
org.hibernate.Cache.evictQueryRegions()
org.hibernate.Cache.evictNaturalIdRegions()

You might want to check the JavaDoc for hibernate Cache interface (Hibernate 4.3).

And also, second-level cache eviction from hibernate dev guide (4.3).