Hello All,
Just curious to see how others are handling JPA aggregate queries. Do you
create a separate summary type of object? Put it in an object array into a
list?

Example:
Query query = em.createQuery("SELECT c.id, c.description,
COUNT(i.item_number) FROM Category c, Item i WHERE c.id = i.category_id
GROUP BY c.id, c.description);
// Object Array
List<Object[]> result = (List<Object[]>) query.getResultList();

Or create a CategoryItemSummary POJO and just put the results in there?

Thanks in advance,
--
James R. Perkins
http://twitter.com/the_jamezp

As an Amazon Associate we earn from qualifying purchases.

This thread ...


Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2022 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.