Hi,
I have two clarification
1.whether i should use all associated properties in my model. and What the UpdateModel() doing
behind the scene.
2. I got an below exception. What its says
"object references an unsaved transient instance - save the transient instance before flushing."

Thanks&Regards
Nizam

Hi,
I dont understand what do you mean with the first point, but regarding the second point:
From my experience that error is because you are trying to save an Entity that references another entity that is not saved yet in your DB.
So you have to either save that other Entity, or change your mappings so it updates in cascade.

Take a look at this site https://forum.hibernate.org/posting.php?mode=reply&f=25&t=999698
Gives an example from what i mentioned.

Hope i was of any help, regards.-