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).

Answer 2

To clear the session cache use session.clear()

To clear the 2nd level cache use this code snippet