Ok, another JDO newbie question...
I don't understand the JDO persistence model. I have a method called
save(MyClass obj), and I want it check to see if a record with obj.key
(it's identity) exists in the database. If it does, I want it to update
that record by replacing it with the new record, otherwise I want it to
create a new record.
First, when doing an OQL query to discover whether the object is already in
the database, it seems I have to load the entire record again (which could
be quite large). Is there any way around that? (I'm currently using "select
p from blah.MyClass p where key = $1".)
Second, why can't I update(obj)? Or remove(obj)? It has the proper identity
set, but I can apparently only update and remove objects that have actually
been loaded from the database. So, right now, I'm writing:
remove(results.next()); create(obj); ... which seems like a hackish way of
doing things. What am I missing?
thanks, (and thanks again for all the other help so far)
jeff
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