Projections.Property("e.Cualquier.Cosa.Com.Ar") type-safe not for sure, so
far... probably it will be type-safe in the future
http://code.google.com/p/nhlambdaextensions/

2009/3/11 TigerShark <[email protected]>

>
> How can I return a component type of a mapped class using the Criteria
> API. I guess I have to use a projection, but if I project on the
> component I get an exception telling me it doesn't map to a single
> property.
>
> I can do it using HQL though, but I'd rather use the Criteria API if
> possible.
>
> In HQL I do like this:
>
> var criteria = session.CreateQuery("select e.Component from Entity e
> where e.Id = :id");
> criteria.SetParameter("id", id);
> return criteria.UniqueResult<ComponentType>();
>
> What I'd like to do is something like this with the Criteria API:
>
> var criteria = session.CreateCriteria(typeof(Entity), "e");
> criteria.Add(Restrictions.IdEq(id));
> criteria.SetProjection(Projections.Property("e.Component");
> return criteria.UniqueResult<ComponentType>();
>
> Even though the second example is more verbose, I believe it's safer
> in regards of type-safety (and spelling).
> >
>


-- 
Fabio Maulo

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