Basic question

anthony · **Posted:** Tue Mar 09, 2004 9:15 am

what do you mean?

biondo79 · **Posted:** Tue Mar 09, 2004 9:19 am

Hibernate maps both ways? (from objects to ER and from ER to Objects)

christian · **Posted:** Tue Mar 09, 2004 9:25 am

There is no such thing as a "mapping" from a data modelling approach to an object-oriented idiom. You can't map from Apples to Cucumbers, please refine your question and check your terminology.

anthony · **Posted:** Tue Mar 09, 2004 9:30 am

from ER to object --> the objects are loaded from a db
from object to object --> if the objects is created or updated, then the db is updated to.

?????

biondo79 · **Posted:** Tue Mar 09, 2004 9:34 am

What I meant is if Hibernate can get a DB structure (just the skeleton) and generate the java classes (Java classes that gives the persistence service). And what about the other way? Can it take a set o Business classes (entity classes) and generate the DB skeleton?
Thanks

michael · **Posted:** Tue Mar 09, 2004 9:35 am

Yes, use SchemaExport. http://www.hibernate.org/102.html

biondo79 · **Posted:** Tue Mar 09, 2004 10:02 am

thanks Michael! that was exactly that I was looking for...

anthony · **Posted:** Tue Mar 09, 2004 11:44 am

ah ok,
follow these steps, it works great
http://www.hibernate.org/hib_docs/refer ... etguide-s1