hibernate disabling cache

Question

I want to disable hibernate caching.

session.setCacheMode(CacheMode.IGNORE) doesn't work.
query.setCacheable(false) also doesn't work.

In addition, can I configure in some way that caching won't be done for Objects X,Y but will be done for Object Z?

Thanks.

Can you be more specific about which hibernate cache you are referring to? There is the session/first-level cache, second-level cache, query cache, and collection cache. — matt b
– matt b, Commented Jul 26, 2011 at 13:44

bipen · Accepted Answer · 2012-12-04 09:29:20Z

7

You can call session.clear() just before obtaining reusable session object from the manager.

I.e. in our project we had to synchronize updates between many hibernate sessions (one per http session). 2nd level cache works fine but 1st level (per session) had to be disabled or cleared. Thus we created SessionManager that stores all sessions and delivers on demand. Just before delivering call session.clear() and this solves the problem.

Until you're doing your unit of work - 1st level cache is fine.

edited Dec 4, 2012 at 9:29

bipen

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answered Dec 4, 2012 at 9:03

Valdas Rapševičius

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Comments

Claude Houle · Accepted Answer · 2011-07-26 13:26:53Z

3

try something like that when configuring your hibernate session factory:

configuration.setProperty( Environment.USE_QUERY_CACHE, Boolean.FALSE.toString() );
configuration.setProperty( Environment.USE_SECOND_LEVEL_CACHE, Boolean.FALSE.toString() );
configuration.setProperty(Environment.CACHE_REGION_FACTORY,org.hibernate.cache.impl.NoCachingRegionFactory.class.getName());
configuration.setProperty(Environment.CACHE_PROVIDER,org.hibernate.cache.NoCacheProvider.class.getName());

However note that you cannot disable the Session Cache which is provided by Hibernate (If not all JPA implementations). If you really something not to be cached by Hibernate, you can either evict it OR not use hibernate (whichever is simpler to you)

As for caching specific entities, I recommend you take a look at javax.persistence.Cacheable and see how that works for you.

answered Jul 26, 2011 at 13:26

Claude Houle

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2 Comments

AAaa Over a year ago

are you sure there is no way to disable session cache? seems strange.. what if i want to comapre DB object before and after change? is the only wasy is it use evict?

Claude Houle Over a year ago

I'm pretty sure... When you are dealing with Hibernate Entities, you are dealing with <attached> objects to a session. Invoking Session.get() on said entities should return you the same object handle (or a proxy of said entities)

AAaa · Accepted Answer · 2011-07-28 08:23:59Z

1

I've searched the web and the conclusion is that indeed a session cache can't be disabled. This is very odd. My solution for myself is to use session.clear() when i want the cache to be cleared.

answered Jul 28, 2011 at 8:23

AAaa

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2 Comments

coding_idiot Over a year ago

doesn't work, I already tried session.clear(); still direct db updates doesn't show up in hibernate. please let me know if you had figured out something else.

Anton Bessonov Over a year ago

Work for me. You can try also to close and open new session.

Lukas Hinsch · Accepted Answer · 2023-08-01 14:44:31Z

0

In case anyone stumbles on this searching for a solution, this is what worked for me:

instead of session.setCacheMode(CacheMode.IGNORE) I used session.setProperty(AvailableSettings.JPA_SHARED_CACHE_RETRIEVE_MODE, CacheRetrieveMode.BYPASS) which did the trick for me to let hibernate bypass the second level cache on the next entity load call.

answered Aug 1, 2023 at 14:44

Lukas Hinsch

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