Hi Arturo,
Not quite sure what problem you are trying to solve, but I can
comment on RelationshipQuery. RelationshipQuery is used by Cayenne
internally to resolve relationships. Applications rarely create it
directly, but there is no problem if you do:
http://cwiki.apache.org/CAYDOC/relationshipquery.html
Ignore the EntityResolver methods, as those are just callbacks that
are invoked by Cayenne when the query is executed. Just for the
reference, EntityResolver is a logical analog of EOF EOModelGroup -
it provides a single combined namespace for mapping metadata and is
accessible via ObjectContext|DataContext.getEntityResolver().
Andrus
On Oct 12, 2006, at 11:58 PM, Arturo Pérez wrote:
> Hi all,
>
> I was trying to populate some Click CayenneForm things. Coming
> from an
> EOF world, I prefer to traverse relationships rather than run queries.
> But many (all?) of the Click Cayenne integrations require
> SelectQuery to
> function. In looking around for a way to bridge this divide, I
> stumbled
> across the RelationshipQuery thing in Cayenne 1.2. But I couldn't
> figure out how to use it. What's an EntityResolver? How do I get
> one?
> How do I convert a RelationshipQuery into a SelectQuery? Is this
> even a
> sensible way to approach the problem?
>
> An example use of the RelationshipQuery or a better suggestion
> would be
> much appreciated,
>
> tia,
> arturo
>
>
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