Hi All,

This is related to persistence of parent and child objects, where the child object shares the primary key with its parent's primary key. When I am trying to save the parent along with children, it throws exception saying, the child should populate the primary key id, but I cannot populate since it parent is still not created and get created along with child.

If I save parent and then save child separtly, it goes fine otherwise no.

Also, I heard this attribute named "constrained" and "generator=forign" but not sure whether they gonna help me.

You suggestions are highly appreciated.

Thanks,
Arshad





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The child should have its own PK, and reference the parent with a FK.

thanks for your response, what I mean by sharing the primary key is, the child got a composite primary key and primary key of the parent is one of the attribute of the child primary key.

Please, see the below topic for the complete details about this problem:

http://forum.hibernate.org/viewtopic.php?t=939169

Thanks,
Arshad