just wonder why people want ORM to mix database entity relationships into application codes. it's just wrong idea.
if you have a look at the code: who on earth could understand what's going on in the code, with so many annotations for database relationships...and even inheritance between entities.
Who created this entity inheritance idea? Is this called over-engineering?!
i reckon one should not overuse JPA otherwise it's gonna be nightmare to maintain and extend.
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