Flush « Session « JPA Q&A





1. What's the use of session.flush() in Hibernate    stackoverflow.com

When we are updating a record, we can use session.flush() with Hibernate. What's the need for flush()?

2. Question about Hibernate session.flush()    stackoverflow.com

I want to inquire about what actually the flush method does in the following case:

for (int i = 0; i < myList.size(); i++) {
    Car c = new ...

3. Hibernate session.flush() --> How to update just dirty objects instead of everything?    stackoverflow.com

I have got an application which uses Hibernate. The performance is very bad. If I change just one simple field, many many many objects are updated after the session.flush() is called. ...

4. Calling Session.flush in Hibernate session bulk update    stackoverflow.com

I have a list of object, for each object I am executing Session.update(), when should I call Session.flush()? After the list complete its iteration or after each update? The code segment ...

5. Problem with Hibernate database Session with flush() ?    coderanch.com

Hi, I am facing problem while calling method 1) DB.flush(); 2) public static void flush() { LOG.debug(".... Flush ...."); HibernateUtil.getSession().flush(); } 3) public static Session getSession() throws InfrastructureException { Session s = threadSession.get(); try { if (s == null) { LOG.debug("Opening new Session for this thread."); if (getInterceptor() != null) { LOG.info("Using interceptor: " + getInterceptor().getClass()); s = getSessionFactory().openSession(getInterceptor()); } else ...

6. Flushing and closing a session    forum.hibernate.org

Hi! I'm looking into an old application that uses methods like the following when saving objects to the database. Code: public void saveMyObject(MyObject myObject) { Session session = sessionFactory.openSession(); try{ ...

7. When flushing session?    forum.hibernate.org

You don't have to do an explicit flush before a commit. You could do a flush when some of your fields are filled by a trigger or something and you need these values before the end of the transaction. Flush and clear is useful if you have to process a large number of entities and run into memory problems.

8. Flush session and get latest values from DB    forum.hibernate.org

I am currently using Spring, Hibernate and JUnit and EhCache. I am trying to do the following: 1) Hibernate Session 1: select X from test where id = 1 //X = 100 2) JDBC Session: update test set x=25 where id =1 3) Hibernate Session 1: select X from test where id = 1 //X IS STILL 100? How can i ...

9. General question about IOC and Session.flush()    forum.hibernate.org





10. Detecting when to call session.flush()    forum.hibernate.org

Hello, I am improving the performance of an existing system. Session.flush() is showing up as one of the hotspots. The code has many (at least 100) methods that follow this pattern: Code: public void foo() { try { Session session = getSession(); //do some work with the session ...

11. Problem with a nonthreadsafe acces to session when flushing    forum.hibernate.org

Hi, So as to use a cache and not the cache of the session, we've implemented a delegated session class, which is called in place of the normal session, and do an evict on every object loaded from data base. The problem is that an error occurs each time we want to flush the session, and for example when asking for ...

12. session.flush hangs    forum.hibernate.org

Hi, There is no exception thrown, which is what's frustrating. the code is simple: Code: log.debug("saveOrUpdate" + te.getId()); session.saveOrUpdate(te); ...

13. Session.flush() and Session.close()    forum.hibernate.org

14. AssertionFailure on session flush    forum.hibernate.org

Hi, I am regularly experiencing the following bug: Code: [net.sf.hibernate.AssertionFailure] an assertion failure occured (this may indicate a bug in Hibernate, but is more likely due to unsafe use of the session) net.sf.hibernate.AssertionFailure: null id in entry (don't flush the Session after an exception occurs) at net.sf.hibernate.impl.SessionImpl.checkId(SessionImpl.java:2630) ...

15. session save/flush and guaranteed success    forum.hibernate.org

16. EjbInterceptor & 9.7.1 Flushing the Session    forum.hibernate.org

On my first attempts to use the HARDeployer, everything seemed to work except that no data actually got stored by my EJB. Went back to the doco (haven't used Hibernate before), ahhh, I have to pull the chain... But hang on. Isn't it possible for org.jboss.hibernate.session.EjbInterceptor to check whether rollback has been set on the transaction, and if not set, invoke ...





17. Automatic flush && session close 3.0RC Vs 3.0    forum.hibernate.org

Newbie Joined: Mon Feb 23, 2004 11:19 am Posts: 2 Location: Latvia Hi, guys ! I currently trying to move from Hibernate 3.0RC to 3.0. Strange problem occur. During hibernate startup, I see, that hibernate.properties is loaded and contains auto flush and session close. But SettingsFactory says that they are disabled. In 3.0RC everything worked flawlessly. My hibernate.properties: Code: hibernate.transaction.auto_close_session=true hibernate.transaction.flush_before_completion=true ...

18. When does session auto flushing happen?    forum.hibernate.org

19. regarding Session flush()    forum.hibernate.org

20. Selective session flushing ?    forum.hibernate.org

Hi, Looking at the Session API, one notices that it is possible to selectively load, save and delete specific objects. However, the flush() method indiscriminately synchronizes the cache with the underlying database. This poses problem for the application I'm working on since we would like to be able to flush changes that happened on specific objects only, not all dirty objects ...

21. Need help with session.flush();    forum.hibernate.org

22. session.flush() help !!!    forum.hibernate.org

23. How to completely flush session?    forum.hibernate.org

Is there no way around this? My application includes a replication process to a remote server. This is outside of hibernate and I don't really what has been updated. My application is a swing app and it has lots of screens that can be switched without reloading. So when my replication process runs I have to somehow mark all data objects ...

24. Understanding Session flushing    forum.hibernate.org

Regarding the topic: #1 Hibernate in Action book says: "FlushMode.AUTO is recommended in rare cases other modes may be required when you are working with triggers, mixing hibernate with direct JDBC or working with a buggy JDBC driver" #2 Hibernate 3.1 reference doc says: "From time to time the Session synchronizes its persistent state with the database. Performance will be affected ...

25. session flushing control    forum.hibernate.org

Is there a way to config session "transparent write behind" behavior? If I want to only sync up session in memory objects that I called session.saveOrUpdate, not the in memory objects that I modified, how do I do that? the reason I want to do this is because I want to generate event on every save call. I do not want ...

26. AssertionFailure - don't flush the Session    forum.hibernate.org

Hi, I got the exception below after a simple select only after I had gotten another exception (ConstraintViolationException). I dont understand what "dont flush the session after an exception occurs" mean here. What can be the reasons for this exception ? Any help is really welcomed. Thank you. Mete I am using contextual session management provided by Hibernate. Hibernate 3.1.3 with ...

27. Error at session.flush()    forum.hibernate.org

28. Having to manually flush the session?    forum.hibernate.org

Beginner Joined: Fri Jul 28, 2006 12:01 pm Posts: 21 I am working with JBOSS 4.0.4GA and Hibernate 3.1.3 I am attempting to manipulate a record in Oracle. For some reason, I am having to manually flush the session to get the changes to show up in the database. From the documentation I have read, I should not have to flush ...

29. Flushing and closing a Hibernate session    forums.oracle.com