Where does NHibernate store mapping information at runtime and how to access it? I need to get association properties (complex properties) for a given mapped class at runtime. And i can't rely on reading hbm files because, mapping can be done in fluent nhibernate.
Yes. You can use ISessionFactory.GetClassMetadata
to get a metadata object for each persistant type.
http://www.nudoq.org/#!/Packages/NHibernate/NHibernate/ISessionFactory/M/GetClassMetadata