create new object mapping

coplas · **Posted:** Tue Jul 06, 2004 5:37 am

hi all
I have one problem.
I have hibernate aplication and I have to create new object mapipng.
I used this code:

Code:

HibernateProvider.refresh();
SchemaExport se = new SchemaExpor(HibernateProvider.getConfiguration());
se.drop(true, true);
se.create(true, true);
HibernateProvider.getSession().connection().commit();

but until now I have to keep data in tables, so dropping is impossible...

and SchemaUpdate doesn't work correctly...

Code:

Session session = HibernateProvider.getSession();
SchemaUpdate su = new SchemaUpdate( HibernateProvider.getConfiguration());
su.execute( true, false);
session.flush();
session.connection().commit();

any help please?

thanx

christian · **Posted:** Tue Jul 06, 2004 5:45 am

SchemaUpdate is not really useful, and if it will be one day, should be only used in development. Use manual schema evolution, this means, modify the database schema by hand.

coplas · **Posted:** Tue Jul 06, 2004 7:46 am

thanks,
but there is problem, when i want to use some not-object variables (int, char), I have to use Object wrappers (Integer, Character), when I create it with SQL DDL... (The fields are not marked as not-null...).
Am I doing something wrong?

+really is not possible to tell Hibernate to create one object... (drop table manually and create it by hibernate)?

thanks
CoPLaS