update « Transaction « JPA Q&A





1. update using JPA    stackoverflow.com

Hi I m using glassfish v2 and persistence in a web application. I m calling persistence codes using a normal java class file inside a web Application I can select easily using this code: ...

2. Hibernate Update does Not Update Anything    stackoverflow.com

In theory, this code should set the new lock status to the users and get that written to the database:

transaction = sess.beginTransaction();
String hql = "update User set locked=:newLockStatus where principalId in ...

3. Update database in the middle of the transaction, possible?    stackoverflow.com

 
 @Transactional
 public void start() {
  ...
  ...
  int result = entityManager
                ...

4. Catching and Handling dual update in hibernate using Optimistic Locking    coderanch.com

I have implemented hibernate into my system and have included the optimistic locking. This all works fine and throws the correct error - StaleObjectStateException. What I need to know is: How do I throw this back up from the DAO to the user to display an error message on screen. I'm using struts/jsps as a front end. Thanks Paul

5. Lost Updates / Concurrency Issues    forum.hibernate.org

I'm having trouble understanding how I should avoid lost updates. I have two applications: App 1 is a tomcat stateless web service app, using the session-per-request pattern. App 2 is a Grizzly socket-server based application that users stay connected for longer sessions, using the session-per-conversation pattern. Both are using JPA/Hibernate for database access, and the shared database is MySQL community 5.1.40 ...

6. Hibernate not committing/updating to database.    forum.hibernate.org

I have search for solutions and I cant find any, I have tried just about everything I can and nothing works. I have this code... Code: @Override public void updateUser(UserModel model) { Session session = sessionFactory.getCurrentSession(); ...

7. Bidirectional relations are not updated inside transaction    forum.hibernate.org

Hello all! I'm using Hibernate with MySql DB server, which maintains tables in InnoDB mode, i.e transaction support is on. I have two object with parent-child relationship: Model and Entity. Here are fragments of Model.hbm.xml: Code: ... ...

8. Update "rollback" - why?    forum.hibernate.org

Hi! I'm a bit puzzeled here... I'm trying to update a field that has previously been updated before, but it seems that Hibernate does a "rollback" after the session is closed. I'm having a hard time figuring out why. Here's some log data: [...] DEBUG NullableType --> binding 'true' to parameter: 7 DEBUG NullableType --> binding 'false' to parameter: 8 DEBUG ...

9. Concurrency for not updated instances    forum.hibernate.org

Suppose I have Country Id CanISellProductsToThisCountry Order Id Country Before adding an order I want to check if I can sell products to the country, so I ask if (!order.getCountry().getCanISellProductsToThisCountry()) throw new Exception("You cannot order"); session.save(order); The problem is that I really need to be sure that noone changed the CanISellProductsToThisCountry field since the moment I checked it to the moment ...





10. Session, Web App update and Optimistic locking.    forum.hibernate.org

Hibernate version: 2.1.5 Mapping documents: Code between sessionFactory.openSession() and session.close(): Full stack trace of any exception that occurs: Name and version of the database you are using: The generated SQL (show_sql=true): Debug level Hibernate log excerpt: Hello All, Please apologize me if this question is very primitive (searched in net but cant find any related docs). I am trying to use ...

11. Update two databases in one transaction    forum.hibernate.org

12. more easy way to retrieve and update in a transaction    forum.hibernate.org

Hi, Following is my environment.... Win2K + Oracle 8i + Tomcat4 + Struts + Hibernate 2.0 I need to retrieve multiple records from a table and modify several columns each record, and then update them against original table in a transaction. note that, search key is not the primary key when i retrieve the multiple records. I've learned how to pick ...

13. unexpected update at tx.commit() w/ optimistic locking    forum.hibernate.org

Hibernate version: 3.0.5 Code between sessionFactory.openSession() and session.close(): Transaction tx = session.beginTransaction(); List fixes = session.createCriteria(Fix.class).list(); tx.commit(); Name and version of the database you are using: Apache Derby, 10.0.2.0 The generated SQL (show_sql=true): Hibernate: select this_.FIX_ID as FIX1_0_, ... from FIX this_ Hibernate: update FIX set VERSION=?, ... where FIX_ID=? and VERSION=? Hibernate: update FIX set VERSION=?, ... where FIX_ID=? and ...

14. Updates happen outside of a transaction    forum.hibernate.org

SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory(); Session session = sessionFactory.openSession(); Category category = (Category) session.get(Category.class,92); category.setName("CCC"); Transaction transaction = session.beginTransaction(); transaction.commit(); session.close();

15. jta transaction doesnt rollback hibernate update in case of    forum.hibernate.org

Hibernate version: 3.0 Name and version of the database you are using:MySQL I am using hibernate3, EJB3.0 in jboss-4.0.3SP1. I want jta does all transaction. But, if my ejb cause an exception my hibernate update doesnt rollback. I dont have any transaction control in my hibernate. and I get the session from session = getSessionFactory().getCurrentSession(); and I dont close session. Here ...

16. updating between transactions    forum.hibernate.org

Need help with Hibernate? Read this first: http://www.hibernate.org/ForumMailingli ... AskForHelp Hibernate version: 3.0.5 Name and version of the database you are using: oracle10g I am having trouble updating an object outside of a session. I thought that the following case makes perfect sense: session 1: save an object from to the database outside of the session: update the object, set some ...





17. Update executed after commit on list()    forum.hibernate.org

Problem: Hibernate is executing an Update statement after a commit is called on a criteria.list() Any ideas why this happens? I call a commit since the code inside the try can change to a saveOrUpdate() or delete(). Hibernate version: Hibernate 3 Code between sessionFactory.openSession() and session.close(): try ...... session = HibernateUtils.currentSession(); HibernateUtils.beginTransaction(); if (criteria_collection != null) { Criteria criteria = session.createCriteria(entityClass); ...

20. Transaction and update    forum.hibernate.org

21. Hibernate Search: index not updated on transaction rollback    forum.hibernate.org

Hi all, I have setup Hibernate Search with Spring and Hibernate and am running some tests with it using JUnit. At the end of a JUnit tests all the dummy data is removed from the database using a rollback. However, the data doesn't get removed from the Index. As a consequence, the Index keeps growing with every test. I understood that ...

22. Interesting! Mulitple updates in a transaction    forum.hibernate.org

Newbie Joined: Sat May 13, 2006 12:00 pm Posts: 19 Hopefully this is an interesting and relatively unexplored question. I'm trying to implement a "set based tree" using Hibernate. In my implementation of this structure a "delete" node requires three update statements and a delete and an "append" node requires two updates statements and an save For some updates and deletes, ...

23. Loose the "lock for update" after session.disconne    forum.hibernate.org

I loose the the "lock for update" after session.disconnect...is there a possibility to keep the lock between a session.disconnect and a session.reconnect Actually I need to keep the pessimistic lock with my JEE application (this is horrible but I have to work with an old client/server application that is doing pessimistic locking via select...for update) An idea ?