public String getName() { return first.getName() + "(" + second.getName() + ")"; }
@SuppressWarnings("unchecked") @Override public Relation<D> doApply(Relation<D> input) { return second.apply(first.apply(input)); }
public String getName() { return first.getName() + "(" + second.getName() + ")"; }
@SuppressWarnings("unchecked") @Override public Relation<D> doApply(Relation<D> input) { return second.apply(first.apply(input)); }