A guide to NHibernate's mapping-by-code

Six weeks ago, when I started my experiments with NHibernate's 3.2 new mapping feature - mapping-by-code, I was a loyal Fluent NHibernate user and a fan of method chains in APIs. My first impression about mapping-by-code was that it seems to be a good direction, but it's still immature and - what's important - not documented at all. I decided to have a deeper look and it turned into a tvelwe-part series exploring all the possible mappings - probably the only complete guide to mapping-by-code on the web so far.