What's difference between primitive and wrapper class in JPA (Hibernate) column mappings?

Posted by Michael Lu on Stack Overflow See other posts from Stack Overflow or by Michael Lu
Published on 2010-04-02T06:36:36Z Indexed on 2010/04/02 6:43 UTC
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Filed under:

hibernate

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jpa

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mapping

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primitive

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wrapper

For instance, there’s a integer column in a database table. Then in java model, it can be mapped both as primitive int and Integer. My question is what's difference between the int and Integer in this case? And performance concern? Thanks!

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