when using session.merge i would like to get the properties changed by the database merged back to the original input object of the merge method.
for example the generated id, the optlocking version or the changed-by information of my interceptor.

(the original input object should be used as the result for the GUI)

I failed to do this with any interceptor until now.

Is there a possible nice solution to do this with hibernate itself.

thanks!

I hope I've understood your question clearly.
The return value of the session.merge() is a persistent object, which is the merged entity. You can use this.
If you want to keep the same object passed as a param to the merge() then you may have to copy the attribute values from this persistent object to the passed object.
Hope this helps.

Hi, mazhar is correct, but you shouldn't try to keep the old ref, until you make sure that you close the session or have evicted the returned object from the session.

Cause the return object by merge is a perfect copy, you should you use this until you really need JVM identity. (foo == bar)

Also keep in mind that merge doesn't keeps the contract at the moment on already deleted objects.

merge of a deleted object results in a insert

Greetings michael

hi urmech, mazhar.

as i sayed i <B>have to keep</B> the original input object as a master for the gui.

i know all the behaviours of merge... please stick to the question, and do not descirbe other things, because the thread gets unclear then...

now there are 3 ways to copy the information back to the original input object as far as i know:
1. do it manually
2. an interceptor (failed) ?
3. an event listener (still under research).

by the way. the reason i have to use the orignal object is that it is bound to a bad GUI framework which does currently not support successfull replacement of the reference to the merge result object.