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

Question

What the code below does in NHibernate:

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

OR

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

Also, does this “pattern” correspond to the main project namespace in .NET or can it be the name of any business object in our application?

Answer 1

you may have .hbm.xml files distributed over many assemblies. One way or another, NHibernate instructs where to download these files from.

Answer 2

It adds all embedded resources with names ending in .hbm.xmlfrom the specified assembly in the form of mappings.

Namespaces have nothing to do with this.