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The moose likes Object Relational Mapping and the fly likes Hibernate: unique leads to exception Big Moose Saloon
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JavaRanch » Java Forums » Databases » Object Relational Mapping
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Hibernate: unique leads to exception

Kata Franciscan

Joined: Jul 24, 2008
Posts: 3
I have a DB table containing names which should be unique. My name class looks (partly) like this:

However, if I now try to insert a new name into the db:

I see an exception if the name is already in the database:

Can anyone here tell me what is wrong? I am a newbie containing Annotations, Hibernate, PostgreSQL and Spring, so the problem might be anywhere ...
Emmanuel Bernard
Ranch Hand

Joined: Oct 22, 2008
Posts: 62
You are not doing anything wrong. That's how it's suppose to work.
I agree. Here's the link:
subject: Hibernate: unique leads to exception
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