How can I set the property 'hibernate.jdbc.batch_size'

Hi Martin,

I use Elver connected with the HSQLDB. I want to set 
hibernate.jdbc.batch_size with  0 (otherwise I can not use saveOrUpdate()).

How can I set this property? I could not find the option with the 
.setProperty(Einviroment....) .

An another question: is there a possibility to define in the 
hibernate.hbm.xml file, for which class a database table shoud be created, 
and or another class should no table be created?

Thanks for the help.

Hui