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From "Durchholz, Joachim" <Joachim.Durchh...@hennig-fahrzeugteile.de>
Subject RE: SelectQuery + Orderings
Date Wed, 01 Feb 2012 09:30:26 GMT
> Well, if your code is well designed your artist fetch logic is
> probably in the Artist class

Many queries aren't really "artist fetch logic" but ad-hoc statistics stuff. The kind of query
with aggregate functions.
A query DSL should be built for ad-hoc queries anyway. Fetching the data model from the database
is already covered at the entity bean layer, tailoring the DSL for the ad-hoc queries is going
to gain Cayenne more new power than tailoring it for predesigned fetch logic.

Besides, the argument loses some weight as soon as subqueries and joins come into play.
You could move those parts of the query to the other class, but you'd have to wrap each snippet
that you move in a function, give it a name, and call it from the main class. Might give you
a better design, or might be hopelessly overengineered.

> so the class name isn't needed.

> If you are doing something inside the class you can use a
> static import to move all the artist stuff into the
> namespace and then use it without qualification.

'Artist.' would be the lesser evil when it comes to quick coding, as it can leverage code
completion (static imports can't because the list of potential matches would be huge).

Regards,
Jo

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