LongUnaryFunction
class LongUnaryFunction<A, OA : ObservableValue<A>>(argA: OA, lambda: (A) -> Long) : UnaryFunction<Long, A, OA> , ObservableLong
Boilerplate which avoids having to use generics. An ObservableLong which is calculated from 1 (unary) other ObservableValue.
See UnaryFunction (PropertyFunctions).