data « Session « JPA Q&A





1. Why hibernate session.close() does not flushes the data automatically?    stackoverflow.com

When hibernate closes a session, the purpose of close is basically to close the underlying connection and the clean up the first level cache. Why the flush also does not happens ...

2. How to force hibernate not to save and data updates on session closing?    stackoverflow.com

For example I have entity extracted from hibernate session User user = session.getById(12); user.setName('new_name') reject request After this code block I do not want to store updates to user and use ...

3. When Session Closed Data Will be Lost in Hibernate    coderanch.com

try { session = dbc.DBConnector(); HQL = "from abc as d where d.employeeNumber='" + employeeNumber + "' and d.submitDate='" + submitDate + "' "; if (session != null) { query = session.createQuery(HQL); it = query.iterate(); while (it.hasNext()) { works = (WorkSheet) it.next(); worksh.addElement(works); } } } catch (Exception e) { e.printStackTrace(); } session.close();[b]//i closed the session in here[/b] return worksh; } ...

4. Problem in pushing data through hibernate even after creating the hibernate session...    coderanch.com

iam getting the following error : - *** Reading Hibernate Session *** Aug 31, 2009 4:57:17 PM org.hibernate.cfg.Environment INFO: Hibernate 3.0.5 Aug 31, 2009 4:57:17 PM org.hibernate.cfg.Environment INFO: hibernate.properties not found Aug 31, 2009 4:57:17 PM org.hibernate.cfg.Environment INFO: using CGLIB reflection optimizer Aug 31, 2009 4:57:17 PM org.hibernate.cfg.Environment INFO: using JDK 1.4 java.sql.Timestamp handling ************ in the ...

5. How To know data saved or updated in hibernate session    coderanch.com

Check the id to see if the data has previously been persisted to the database - if it has not then you know it needs to be saved. Attempt to re-fetch the data based upon it's id; if it doesn't exist then your application (or another) has deleted it - otherwise it's an update if the fetched data and current data ...

7. Still Obtaining "old" data from a session after &q    forum.hibernate.org

I have several threads, each open a session and gain access to the same data set. One thread t1 changes the data and commits the change. (the change has been persisted and visual from the DB) Another thread t2 loads the same data record the print it out. However, I find that the data retrieved contains "old" data. I suppose it ...

8. Behavior of Session.save() and duplicate data    forum.hibernate.org

Is the intended behavior of session.save() to always insert a new row into the database, regardless of whether an instance has already been persisted (i.e. the instance already has a generated PK id)? If I attempt to pass an already persisted instance to session.save() it inserts a new row with identical data, but with a new generated PK id. I am ...

9. Sessions and data integrity    forum.hibernate.org





10. how to prevent getting stale data from session    forum.hibernate.org

When I load in an enity called group from a session as shown in the code below (which also apperently loads in the GroupUsers associated with that group as can be seen from the SQL below, also see the hibernate mapping), then perform some updates and then call this code again for the second time to see my changes, I am ...

12. Accessing data from a session closed somewhere else    forum.hibernate.org

Hi, I'm new here. I googled quite a lot to find an answer to my problem, but haven't found one yet. I'm not sure it hasn't been asked (and answered) in one way or another, though. I'm using an EJB to find customers in my data base according to certain criteria. The EJB method looks roughly like this: Code: ...

13. Data Replication into two Databases with one session.    forum.hibernate.org

I am wondering whether it's possible to have Hibernate perform data replication while performing saves. I have two separate databases with the same schema, and duplicated data. I know I can access two databases with two separate config files. But since the data on the two DBs are the same, I want to be able to update both database updates within ...

14. Discuss : To get entire table data through session    forum.hibernate.org

Hey everybody, I am new to hibernate. I have a discussion that, to get entire table data through hibernate I am using the following code....... DBSessionFactoryLocal dbSessionFactory = (DBSessionFactoryLocal) SpringUtil.getBean(DBSessionFactoryLocal.ID); DBSession dbSession = dbSessionFactory.currentSession(); Session session = dbSession.getSession(); try { Query query = session.getNamedQuery(Constants.GET_COUNTRY_DATA_QUERY); List results = query.list(); if (CollectionsUtil.isEmptyCollection(results)) { throw new NoDataFoundException("No States found"); } return (States[]) results.toArray(new States[0]); ...

15. session.save() - data not reflected in the DB.    forum.hibernate.org

Newbie Joined: Wed Dec 19, 2007 3:08 am Posts: 8 Hi, i am a newbie to Hibernate and face a problem which i am sure must be quite trivial to others out here but please do help me out. when i do a insert using session.save(), my app returns a success message with an id generated. However, the DB doesnt reflect ...

16. Stale data across sessions    forum.hibernate.org

Is there any way that an entity can be evicted from all peristence context caches (first level cache) across all sessions? In my web application if user A has a list of Bookings and user B updates some of them; for example changing a status to "accepted", then the list that user A is working from is no longer accurate - ...





17. Data Scope of a Session    forum.hibernate.org

hi! Consider following code: Code: Session s1=HibernateFactory.openSession(); Session s2=HibernateFactory.openSession(); System.out.println(s1.hashCode()); System.out.println(s2.hashCode()); Transaction t1=s1.beginTransaction(); ...

18. Hibernate session shows stale data if DB updated otherwise..    forum.hibernate.org

I am updating my DB using back-end queries, and if i try to access the same using a Hibernate Session of a already logged-in user, i see stale data. If i logout and login again, i see fresh data back again. My HIbernate session is no way attached or cached in http session. Any clues ?