title: How to set entire mapping to read only in NHibernate 3.2 mapping-by-code?
body: <p>I'm just getting up to speed with NHibernate 3.2 and its "mapping by code" feature, and migrating our Fluent mapping over to it.
  Is there an equivalent of the fluent "ReadOnly();" function, to make the entire mapping read only?
  Thanks in advance.</p>