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by alserio
1899 days ago
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People normally do that when they do not have to do that. Dog rex = em.find(Dog.class,"rex"); // 1
rex.setAge(2); // 2
// other query // 3
At 3 the update is flushed on the underlying db.
This is pure JPA. Calling merge is forcing an useless query before the update. Also, merge returns the managed entity. |
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