Hello Everyone
I searched through the mailing list and was surprised not to find
suitable informations about queries on dependent classes (so if there is
already a thread with a solution for this... please send me the link).
Certainly I read in the documentation that I cannot make a direct query
on a dependent class. So I tried a query like this one:
Scenario:
public Club { Vector m_Groups = new Vector(); (...) }
public Group { Club m_Club = null; (...) }
There are some Clubs and a Club can have some Groups (but a Group can
only have one Club) - therefore the Group.class depends on Club.class.
Query:
SELECT g FROM c in Club, g in c.m_Groups (...)
This would follow the official ODMG standard for OQL. But I also read
that Castor doesn't support anything else than 'real' classes in the
FROM-clause.
So my question is: How can I make a query, where I only receive a
collection of the depending class? If I'm not interested in the clubs,
but only want to have an overview over the groups (under certain
criteria), I don't want to receive a collection with the clubs and then
look for the wished groups myself...
Another solution would be, to make the groups independent of the clubs.
But then I suffer from NoSuchElementException (maybe my mapping has some
mistakes...) while going through the QueryResult. I will try to follow
this solution as long as I don't get any helpful advices.
Stefan Frank
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