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How does Hibernate distinguish between transient (i.e. newly instantiated) and detached objects?

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Question Published at Thursday, 01 July 2010 in Category Hibernate. Question Visited: 754 Times.

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" Hibernate uses the version property, if there is one.
" If not uses the identifier value. No identifier value means a new object. This does work only for Hibernate managed surrogate keys. Does not work for natural keys and assigned (i.e. not managed by Hibernate) surrogate keys.
" Write your own strategy with Interceptor.isUnsaved().

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