2. Fd class: A functional dependency is an object containing two relations (sets). One on the left hand side and one on the right hand side.

• Fd(Relation in lhs,Relation in rhs) • String toString() • boolean BCNFviolation(Relation s) check if this functional dependency is a BCNF violation with respect to the given set of attributes of relation s • Relation getLHS() • Relation getRHS()