Hello,
I have several situations in my application where I need to be able to model
a 1 - many relationship; ie. I want to retrieve an Order object and its
related details objects. I would like recommendations on how to do this in
ejb, preferably using CMP if feasible. I have looked an example in on the
EJB books but the description seems very expensive from a performance
standpoint. My read of one such example is:
When selecting the order object, you also retreive a vector of primary keys
for the detail. You then do a findByPrimaryKey(..) on each element of the
vector.
According to this you would have a database hit for each row in the result
set when you really should only have 2 - one for the order and one for the
line items.
Thanks in advance.
Suneet
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