Hi all.
Something that still bothers me when using OJB is the way I have to
manage my non-decomposed m:n relationships.
Because the indirection tabel is not directly accessible as domain objects,
I have to fill a vector with references to the related objects,
and then do a store on the main object.
OJB will then delete all the n:m relation entries for that object in the
indirection tabel, and then recreate them from the collection.
(As far as i can see using the P6spy and the sources)
I would think it would be easier and more efficient if there would
be a method "link" that would insert a relation, and a method "unlink" that
would remove a relationship. Without such methods I will always have
unneccessary store actions on the main object.
[Note that I am only using the Perstince Broker, not the higher level API's]
An alternative would be to use a collection that would implement this
under its covers, so it would do "link" and "unlink" via its interface methods
add(Object), addAll(Collection), remove(Object) removeAll(Collection).
Is there anyone out there using n:m collections that found a way to
avoid these redundant stores and deleta activities ?
Regards,
Theo
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