Hi,

I have searched the forum extensively but could not find an answer for my question.

I have data coming from an XML file which I want to persist. I can use assigned ID's (these come from the data in the XML), but the default behaviour I experience from Hibernate with assigned ID's is that it trys to
perform an update. The problem is, that this might not be want I need, because it could also be possible (obviously ;) that the data in XML file is new.

How can I tell Hibernate to perform an insert insteed of an update in these cases?

Sure, I could do this "by hand", but maybe there is build in solution in Hibernate.

Thanks for your help.

Best regards,

juergen

There are three possibilitys how Hibernate can distinguish automatically if it should do an update or a save:

• you use unsaved-value for your id
• you use unsaved-value for your version property
• you use an interceptor with the isUnsaved method implemented

I don't see any problem with assigned and unsaved-value however (unless you really have no way yourself to find out what is unsaved and what not)

What I was trying to do is.



Can I tell Hibernate in some way that if the update fails, automatically
perform an insert?

Thanks,

juergen

No, you have to do this manually. Or you could use saveOrUpdateCopy() which will try a SELECT before the UPDATE.

Ok, I understand.

Thanks for help.

Best regards,

juergen