Hibernate and Child Objects (add versus clear)

Posted by tyndall on Stack Overflow See other posts from Stack Overflow or by tyndall
Published on 2010-06-17T20:53:02Z Indexed on 2010/06/18 0:33 UTC
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java

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hibernate

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orm

Lets say I have domain model with Automobile and Wheels. Wheels is a List of Wheels Wheels has a many-to-one relationship to Automobile.

If I get an object back from Hibernate and it has 4 wheels. I take that object remove the 4 wheels and add 4. And then Save.
If I ask Hibernate for the object again and it returns an auto with 8 wheels... what are we doing wrong? I don't have access to the source for a few days but want to give our Java devs a push in the right direction. Thanks.

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