Paging over a lazy-loaded collection with NHibernate

Question

I read this article where Ayende states NHibernate can (compared to EF 4):

• Collection with lazy=”extra” – Lazy extra means that NHibernate ada

Answer 1

I'm pretty sure (reading the comments) that he's talking about the CreateFilter of ISession.

You can do paging like this (from the docs 13.13):

Collections are pageable by using the IQuery interface with a filter:

IQuery q = s.CreateFilter( collection, "" ); // the trivial filter
q.setMaxResults(PageSize); 
q.setFirstResult(PageSize * pageNumber); 
IList page = q.List();

Or (from the docs 17.1.4):

s.CreateFilter( lazyCollection, "").SetFirstResult(0).SetMaxResults(10).List();

That's is not as smooth as using the System.Linq methods. I guess they'll join the syntax some time too.