jpa 2.1 has been released , new feature seems on conditions.
i found mentioned in some blogs , eclipselink documentation.
how can make use of this?
i have 2 entities linked each other @onetomany , @joincolumn. have filter out of second entities.
the blog sample shows:
select s.name, count(p) suppliers s left join s.products p on p.status = 'instock' group s.name how can make use of mappings?
the on clause queries, not mappings.
if want add additional criteria mapping, not jpa supports in spec.
with eclipselink can using descriptorcustomizer , setting mapping's selectioncriteria.
see, http://wiki.eclipse.org/eclipselink/examples/jpa/mappingselectioncriteria
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