Suppose we have an entity "City" with an element collection "names" of type Map<String, String>, mapping language codes to names.
Now what's the best way to write a JPQL query for all cities without an English name? Is there an alternative to using a subquery like this: select city from City city where not exists (select c from City c join c.names where KEY(c.names) = 'en' and city = c) I would like to write something like select c from City c where 'en' NOT MEMBER OF KEY(c.names) but OpenJPA 2.1.0 produces a parser error. I think this is correct by the JPA 2.0 spec, but wouldn't that be a consistent and useful extension of the spec to regard KEY(identification_variable) as a collection_valued_path_expresssion, when identification_variable refers to a map? Best regards, Harald -- NEU: FreePhone - 0ct/min Handyspartarif mit Geld-zurück-Garantie! Jetzt informieren: http://www.gmx.net/de/go/freephone
