I'm dealing with Charges, Funding, and Payments, and have abstracted the three
into a generic Finance entity (and business object) and single table and view.

I'm using table buffering and want to hold changes until the user commits, BUT
there are times when more than one entity may be changed, or I need to requery
to get totals of another entity.

Do I go back to three business objects?
Do I subclass and have each write changes back to a master?
Do I modify the UI to filter for each entity?
Do you have any better ideas?

Chris.