[hibernate-issues] [Hibernate-JIRA] Resolved: (HHH-2040) problem with MySQL 5.0 in a standalone application; unable to insert records in a certain case
Christian Bauer (JIRA)
noreply at atlassian.com
Wed Aug 30 13:59:24 EDT 2006
[ http://opensource.atlassian.com/projects/hibernate/browse/HHH-2040?page=all ]
Christian Bauer resolved HHH-2040:
----------------------------------
Resolution: Rejected
http://forum.hibernate.org
This book is full of issues, just use the reference documentation tutorial.
> problem with MySQL 5.0 in a standalone application; unable to insert records in a certain case
> ----------------------------------------------------------------------------------------------
>
> Key: HHH-2040
> URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2040
> Project: Hibernate3
> Type: Bug
> Components: core
> Versions: 3.1.2
> Environment: Windows XP Home Edition; Java 1.5.0_08 (JDK); MySQL server 5.0; MySQL Connector/J 3.0 or 3.1 (doesn't matter)
> Reporter: Timothy Heider
> Attachments: Practice.hbm.xml, hibernate-configuration-3.0.dtd, hibernate-mapping-3.0.dtd
>
>
> Hello,
> I have found a workaround for this, but I wanted to report my experience.
> I am starting out with Hibernate and have spent the past few days building my "hello world" ap.
> I finally got SchemaExport working and my configuration set up. My database is all set up, etc.
> When I do this, it works:
> public static void main(String[] args) {
> Configuration cfg = new Configuration();
> SessionFactory factory = cfg.configure("primeschedule/hibernate/hibernate.cfg.xml").buildSessionFactory();
> for(int i=0;i < 5;i++) {
> Session session = factory.openSession();
> session.beginTransaction();
> Practice p = new Practice();
> p.setName("tim-" + Integer.toString(i));
> session.save(p);
> session.getTransaction().commit();
> session.close();
> }
> factory.close();
> }
> but when I do this it does not:
> public static void main(String[] args) {
> Configuration cfg = new Configuration();
> SessionFactory factory = cfg.configure("primeschedule/hibernate/hibernate.cfg.xml").buildSessionFactory();
> for(int i=0;i < 5;i++) {
> Session session = factory.openSession();
> session.beginTransaction();
> Practice p = new Practice();
> p.setName("tim-" + Integer.toString(i));
> session.save(p);
> session.flush();
> session.close();
> }
> factory.close();
> }
> If I run the second test case in JDB it would actually output junk to the screen and crash! When running test case 2 in the standard java interpreter it outputs the INSERT statement, but the records do not post to the database. Weird.
> My workaround is to not use FLUSH but instead use getTransaction().commit(). The book "Hibernate Quickly" suggests using the flush command at the end of the session.
> Thanks for your attention,
> Tim
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