clear « Cache « JPA Q&A

1. Clearing L2 Cache using hibernate coderanch.com

HI All, I have configured in such a way that, i run a servlet which pulls the data from database and puts in to the L2 cache and i refer this cache hereafter. Problem is when ever updation is done on the datbase, the only way my L2 cache gets updated is by restarting my server and again running my servlet. ...

2. How to clear Hibernate cache coderanch.com

Hi Friends! My problem as follows., In my project, we had the form used to display and edit user profile information. When users edit the form the values are updated to the database then i have to display the updated info on the form. when i retrieve the updated value from DB through HQL, it retrieves only old data. But the ...

3. Hibernate Caching not clear coderanch.com

Hi Friends, I am using EHCache in hibernate and I have to implement readonly cache for all the master data tables. To implement it i made the following changes in hbm files:- ...

4. clear cache problem forum.hibernate.org

Hello! In my web application data is saved normally , but after getting changed data, it appear such before change. I suggest what the problem in the cache and tried use : session.evict(...), evictQueries , etc. but nothing works. please help me..what I do wrong? hibernate.cfg Code: ...

5. Clear hibernate 2th level cache forum.hibernate.org

I found this post: http://www.mikedesjardins.net/content/2008/10/clearing-hibernate-second-level-caches http://community.jboss.org/message/564127 Code: @PersistenceContext private EntityManager em; public void clearHibernateCache() { Session s = (Session)em.getDelegate(); SessionFactory sf = s.getSessionFactory(); Map classMetadata = sf.getAllClassMetadata(); for (EntityPersister ep : classMetadata.values()) { ...

6. How to force clear the cache ? forum.hibernate.org

7. About cache and clear method forum.hibernate.org

Hi, I have read the topics about disabling the session cache, and have understood this is not possible. I do not have specify anything in the mapping file. So if I use the method session.clear() after each operation, am I sure that the objects manipulated previously by the session won't be present in the cache. Vlad

8. Clearing the 2nd-level cache forum.hibernate.org

Is there any way to clear the 2nd-level cache (we intend to use EHCache)? Basically, we want to use 2nd-level caching, but we'd also like the production support team to be able to make certain changes to the DB at runtime. They'd be going around the middle layer of our application, so there's really no way for the cache to know ...

9. Clearing cache and NonUniqueObjectException forum.hibernate.org

Greetings. I started a similar discussion long time ago and would like to summarize everything in a new thread. My application is using a single session, which cache gets cleared every now and then to avoid performance problems. Here is a scenario that results in NonUniqueObjectException to be thrown when object A is saved: 1. Retrieve object A from the database ...

10. clear cache forum.hibernate.org

factory.close(); factory = null; System.gc(); factory = new Configuration().configure("/hibernate.cfg.xml") ...

11. clear cache forum.hibernate.org

factory.close(); factory = null; System.gc(); factory = new Configuration().configure("/hibernate.cfg.xml") ...

12. Clear Hibernate Second Level Cache forum.hibernate.org

The evictXXX() methods evict the cached state of an instance, entire class, collection instance or entire collection role. I want to clear the complete second level cache. if i have to do that i have to call these evictXXX() methods for each class and collection which is cumbersome. Is there any way to clear the complete second level cache using a ...

13. Clearing the Hibernate Cache forum.hibernate.org

14. Clearing entire Second Level cache programmatically? forum.hibernate.org

We are using Hibernate 3 with a second level cache and we have a requirement to be able to programmatically clear (i.e. evict) everything from the second level cache. Is there a way to achieve this through hibernate? I know I can use SessionFactory.evict (and similar methods) but I have to call it for each class, entity or collection: we have ...

15. Clearing L2 Cache using hibernate forum.hibernate.org

Hibernate version: 3.2 HI All, I have configured in such a way that, i run a servlet which pulls the data from database and puts in to the L2 cache and i refer this cache hereafter. Problem is when ever updation is done on the datbase, the only way my L2 cache gets updated is by restarting my server and again ...

16. session.clear() and second level cache problem? forum.hibernate.org

Hi all, I'm having problems when clearing the session for batch processing. I'm iterating over a long result set and doing something for each entity in it. If I clear the session every BATCH_SIZE entities, I get "org.hibernate.LazyInitializationException: could not initialize proxy - no Session" after the first batch. If I don't clear the session everything goes fine, except that memory ...

17. Suspect object caching even after session.clear() forum.hibernate.org

Need help with Hibernate? Read this first: http://www.hibernate.org/ForumMailingli ... AskForHelp [b]Hibernate version:2.17[/b] Hi guys: I've encountered this problem, any help as to the cause of the problem and/or solutions will be greatly appreciated. I"m using Hibernate 2.17 by the way. the actions sequence involves, 1. using hibernate hql query to select a list of objects. e.g. select * from tableA. 2. ...

18. Can you help me to clear a doubt about second level cache? forum.hibernate.org

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19. How to prevent clear l2 cache on ExecuteUpdate() forum.hibernate.org

My application needs to execute a non query sql statement, but Hibernate tries to clean my L2 cache whenever I execute a nonquery . I found the following in the source code in BasicExecutor.java. Anyone knows why Hibernate is clearing the cache? and how can I avoid that? Thanks. Code: public int execute(QueryParameters parameters, SessionImplementor session) throws HibernateException { ...