FIGURED OUT THE CASCADING ISSUE WITH HIBERNATE/JPA!!!!!
I can't believe I didn't figure this out sooner, but with the
DollarValue and Trade classes I wasn't setting the model, I guess I
(sillyly) assumed that hibernate could figure out I meant the model that
I was currently saving. But once I specified it it worked flawlessly.
Now I can go fix the previous workout for the ruleparameters and
ruleresults.