Hi,

I am trying to use my own type for IDs instead of long or String. My mapping looks like:

<id name="traceSummaryId" column="trace_summary_id" type="com.PersistentObjectId">

Of course, Hibernate complains that it cannot interpret this type.

Please tell me how I can create my own type for IDs. I tried implementing UserType to do it, but I am not sure how to implement nullSafeGet and nullSafeSet -- PersistentObjectId is really just a wrapper class for a long -- our architects want to see some fancy class names:):)

Thanks a lot
Alex

I think you want to use composite id:
http://www.hibernate.org/hib_docs/refer ... ping-s1-4b

Actully, I do not want use a composite id -- my id is very simple it is just a long. But, I want to wrap a long in my own object -- PersistentObjectId so that it looks as if it is abstracted from the primitive data types.

Please advise
Thanks
Alex

Something similar was brought up a couple of weeks ago:

http://forum.hibernate.org/viewtopic.php?t=926374

Have a look at http://www.hibernate.org/Documentation/NonDefaultTimeZone, http://www.hibernate.org/hib_docs/reference/html_single/#or-mapping-s2-4
and net.sf.hibernate.test.DoubleStringType