LongBinaryFunction
class LongBinaryFunction<A, OA : ObservableValue<A>, B, OB : ObservableValue<B>>(argA: OA, argB: OB, lambda: (A, B) -> Long) : BinaryFunction<Long, A, OA, B, OB> , ObservableLong
Boilerplate which avoids having to use generics. An ObservableLong which is calculated from 2 (binary) other ObservableValues.
See BinaryFunction (PropertyFunctions).