manager_ = mm.entity(Manager.class);
movie_ = mm.entity(Movie.class);
order_ = mm.entity(Order.class);
person_ = mm.entity(Person.class);
phone_ = mm.entity(Phone.class);
photo_ = mm.entity(Photo.class);
product_ = mm.entity(Product.class);
semester_ = mm.entity(Semester.class);
student_ = mm.entity(Student.class);
transactionHistory_ = mm.entity(TransactionHistory.class);
videoStore_ = mm.entity(VideoStore.class);