JPA for google app engine

Hi I am doing one project in JSP with Google application engine. Now I dont want to use Datanucleas JPA. Becuase the queries are quite different from Datanucleus. It really takes time me. so if I can开发者_JAVA技巧 use simple JPA other than Datanuclease will be good. Is that possible?

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No it's not. Google provides a JPA API implementation above its very specific "database" calls the DataStore.

AFAIK, there is no other JPA implementation able to target this datastore. But there are other APIs available: the low-level datastore API, JDO, Objectify, twig-persist, and maybe others I don't know about.