NHibernate - get List<long> representing primary keys?

Posted by Nathan on Stack Overflow See other posts from Stack Overflow or by Nathan
Published on 2010-05-03T23:19:00Z Indexed on 2010/05/03 23:28 UTC
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I have a situation where I definitely don't want to get the whole domain object. Basically, the entity has a primary key of long (.NET)/bigint(sql server 2005). I simply need to pass the primary key to an external system which will access the database directly - and since the list of ids could be large, I don't want to rehydrate the entire domain object just to get the Id.

In linq2sql, I could accomplish this with a projection, but I am restricted to NHibernate 1.2.1.4000, which doesn't support Linq.

Is there a way to accomplish this using NHibernate 1.2.1.4000?

(I am open to using a named-query if that will work)

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