In my application, I need to talk to multiple databases. I am handling this in NHibernate by creating one SessionFactory per database (I assume this is the correct thing to do). So I have two sets of models (one per database), and two sets of Fluent NHibernate ClassMap<>
mappings. Both are in the same project (separated by namespace) and I'd like to keep it that way.
The problem comes when creating the SessionFactory. As far as I can see, Fluent NHibernate has basically two methods for adding mappings:
.Mappings(m => m.FluentMappings.AddFromAssemblyOf<UserClassMap>())
.Mappings(m => m.FluentMappings.Add<UserClassMap>()
If I use the first overload, then my session factories get all the mappings for both databases. If I use the second, I have to specify each individual ClassMap. I'd like something like FluentMappings.AddFromNamespace()
. Is there a way to do this?
Best Answer
It's odd that FluentNHibernate supports this type of filtering for automapping, but not for
ClassMap
s. It shouldn't be too hard to add this feature yourself, though, via the magic of extension methods. Try this:... and use it like this: