Hi, I have an one-to-many parent/child associations, and I want to update those classes changing some values of parents and some values of childs, also I'd like to add two new childrens, my questions is: How can I do that ?? I'm using assigned ID generations and I'm not using unsaved-value parameter in the mapping file...
Does anyone can tell me where can I find a source code example of that ???

I hope I was clear and somebody can help me !!

Thanks in advance...
Alejandro.-

If using assigned id strategy, then you must seperately save() those two children yourself. Then add them to the parent collection.

The other option is to implement Interceptor.isUnsaved() and come up with some way to determine whether those new children are new.

Or set unsaved-value on <version> or <timestamp> mappings.

Thank you for all, but sorry Christian I'm new using hibernate (That's the reason I'm looking a source code example) and I don't understand you very much when you say I can use unsave-value <version> .
I've seem some example that use unsave-value = "0" in the mapping file, but I've never seem how to use it in the app...

Thanks for your time
Regards,
Alejandro.-

Thanks Christian.... !!!

Alejandro.-

Hi, and sorry again, now I have a doubt if I have a composite identifiers, for example:

<composite-id name="idDetUserGroupPK" class="com.security.impl.DetUserGroupPKImpl">
<key-property
name="idUser"
column="idUser"
type="int"
length="10"
/>
<key-property
name="idGroup"
column="idGroup"
type="int"
length="10"
/>
</composite-id>

and I want to add the unsaved-value="null" param to specify the identifier value of a newly instantiated instance, do I have to put it in every key-property that I have ?? I mean, Do I have to do this :

<composite-id name="idDetUserGroupPK" class="com.security.impl.DetUserGroupPKImpl">
<key-property
name="idUser"
column="idUser"
type="int"
length="10"
unsaved-value="null"
/>
<key-property
name="idGroup"
column="idGroup"
type="int"
length="10"
unsaved-value="null"
/>
</composite-id>

or where Do I have to put the unsaved-value param ???

Thank in advance,
Alejandro.-