Well... What I said in the first response is that nobody said that you must
use the build-in AliasToBeanResultTransformer.
You can create your own implementation and there you can use your Ctor with
parameters.
The default AliasToBeanResultTransformer need a default parameter-less Ctor.

NH3.0, may be, we can provide another build-in ResultTransformer for
anonymous classes.

The other solution, for your problem is:
select new YourDTO(p.Name, p.Surname) from Person p

2009/3/12 TigerShark <[email protected]>

>
> I did read it, but that's not my point. I'm doing a projection of an
> existing entity to a light-weight DTO. The AliasToBean transformer
> requires me to provide a default _public_ parameterless constructor to
> work with it, the reason for that being it's using
> Activator.CreateInstance(type) instead of Activator.CreateInstance
> (type, true).
>
> I'm perfectly aware that I can implement my own transformer or
> tupelizer, however the problem is the behavior of AliasToBean.
>
> AFAIK AliasToBean is using setters on the instance, ideally making the
> constructor irrelevant (besides the one for the activator).
>
> My point is simply this: Make AliasToBean accept non-public
> constructors.
>
> If I'm completely of-course, please let me know. BTW: I'm on the
> current NH trunk.
>
> On 12 Mar., 15:22, Fabio Maulo <[email protected]> wrote:
> > 2009/3/12 TigerShark <[email protected]>
> >
> >
> >
> > > Yeah I know, but still, it's kind of strange that the default
> > > AliasToBean transformer doesn't support other that strict public
> > > constructors.
> > > Actually I thought that one of the primary goals for NH was to provide
> > > transparent persistence with close to no restrictions on the domain
> > > model. Now I _have_ to provide a parameterless public constructor,
> > > even though it's never user by anything by NH...
> >
> > Please read the blog post..
> > "If you are working with NH you know that NH likes POCOs and you must
> have a
> > default constructor without parameters. Starting from today that is the
> > past."...
> >
> > --
> > Fabio Maulo
> >
>


-- 
Fabio Maulo

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