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
