I've seen several posts on this topic with any repsonses...maybe I'm not doing my search properly.

Here is the situation. I have a class that has a bunch of collections. I've defined my mapping so that lazy=false, select-before-update=true.

I load my instance (works great!). I add a new row to one of the collections. Then using a new session I call SaveOrUpdate. It actually does save everyhting...but I was looking at the sql, and realized that it is deleting all the rows in the collection from the db and then reinserting them.

Also it was updating all the exiting associations, I hadn't changed anything...

1. Is this normal behavior?
2. I have an intercepter that updates the audit fields (lastUser, lastModifiedDt) on: OnFlushDirty, OnSave? Could that be confusing nHibernate?

If this is not the normal behavior, how should I proceed?

Thank you!

Depends if your collections are mapped as bags or sets.
How are your collections mapped? Should we guess your hibernate-mappingfiles or are you willing to shed some more light?

1. It is normal behavior if your collection is a bag
2. I don't believe it has anything to do with the interceptor; nor does it have anything to do with select-before-update.

I answer a similar post yesterday, see:
http://forum.hibernate.org/viewtopic.ph ... t=#2356166

Hope this helps.