Hi,
I have a huge dictionary which I cannot allow to load to the client.
(i.e. ID, VALUE )

and I have objects which use it
(i.e. OBJ_ID, DIC_ID, ......, )

what I want to get is ( ID, VALUE, ... ) that is join the dictionary value into the object.

I don't really want to create a dictionary entity and have a many-to-one realationship to it.

Is there a way to map the dictionary value directly to, say, string field of may class?

I don't know about a way to map this but if there is than how you would persist dictionary changes.

I would use select new() HQL queries to get just the needed data. And map as master - detail.

I get that stuff from external source and cannot modify it therefore I do not need to change the values

So, if I understood you have two tables already filled (object and dictionary).
Than map each of them as entities and than query like:

session.CreateQuery(
@"select new Pair( o.Id, d.Id, d.Value )
from Object o left join o.DictionaryValues d")
.List();

this way you get a lists of Pair objects.

You have to import the Pair definition in the mappings:
<import class="myasm.Pair, myasm" rename="Pair"/>

And what type will be the returned result?

uh sorry =) just understood its a list of pair objects