What does Configuration.AddAssembly("") in NHibernate do?

Question

What does the below code actually do in NHibernate:

<mapping assembly="Sample" /> //in the config file

OR

Configuration config = new Configuration();
config.AddAssembly("Sample");   //in the code file

Also does this "Sample" correspond to the the main namespace of the Project in .NET or can it be the name of any Business Object in our application?

Answer 1

you can have .hbm.xml files spread out to many assemblies. So either way, instructs NHibernate from where to load those files.