Usage of EntityPersister

andreas · **Posted:** Mon Oct 06, 2003 12:25 pm

Hi Hibernate Team,

is it recommended to use the EntityPersister to get the database table of a class like this:

Code:

Map info = hibernateSessionFactory.getAllClassMetadata();
ClassMetadata metadata = (ClassMetadata) info.get(clazz);
EntityPersister persister = (EntityPersister) metadata;
String tablename = persister.getTableName();

Or is this something internal, that's better not used?

gavin · **Posted:** Mon Oct 06, 2003 2:43 pm

Don't do this.

You can use Configuration.getClassMapping()

andreas · **Posted:** Tue Oct 07, 2003 5:46 am

Is there another way, to get the tablename? Cause I only have the sessionFactory to get information from.

christian · **Posted:** Tue Oct 07, 2003 5:48 am

Looks like we have another +1 on the feature list for SessionFactory.getConfiguration() :)

andreas · **Posted:** Tue Oct 07, 2003 6:11 am

Yes, this would be the feature I need. Thanks! :)

gavin · **Posted:** Tue Oct 07, 2003 3:29 pm

No way, there will be no SessionFactory.getConfiguration(). It makes no sense, since Configuration is mutable and SessionFactory is immutable. The SessionFactory represents a "frozen" Configuration.

max · **Posted:** Tue Oct 07, 2003 3:50 pm

A valid point - so, if users want this (and they want ;) - they should just keep a map from SessionFactory to a Configuration ....easy to do !

andreas · **Posted:** Wed Oct 08, 2003 7:19 am

max wrote:

A valid point - so, if users want this (and they want ;) - they should just keep a map from SessionFactory to a Configuration ....easy to do !

Hm, I don't see, why keeping the Configuration in a Map should be better than sessionFactory.getConfiguration(). If I get the Configuration from the Map, I can't be sure, that the Configuration hasn't changed since the sessionFactory was created.

If I get the "frozen" Configuration from the sessionFactory it would be better in my opinion.

vijpan · **Joined:** Sat Nov 22, 2003 3:54 pm **Posts:** 42

Since Configuration object is not available in this case, we need to have some kind of metadata classes from SessionFactory to know the information of the columns like ColumnMetaData from SessionFactory.

We really need some kind of facility where we can have acces to whole mapping file from SessionFactory.

This can be really helpful when we are automating the request(web tier) mapping into hibernate objects.

Thanks