Just extend Val
.
object items extends Enumeration {
val pen = Item("writing")
val brush = Item("painting")
final case class Item(key: String) extends Val {
def kind: String = toString
}
}
object Test {
import items._
def main(args: Array[String]) {
println(pen.kind +" is for "+ pen.key)
println(brush.key)
println(items.values)
}
}
or
object days extends Enumeration {
case class Day(i: Int, name: String) extends Val(i, name) {
def isWeekDay = i < 5
}
private def newDay() = new Day(nextId, null)
val Mon, Tue, Wed, Thu, Fri, Sat, Sun = newDay()
val daysOfTheWeek = values.toList.asInstanceOf[List[Day]]
}
object Test extends App {
import days._
println(Thu)
println(days.values.toList mkString ",")
for (d <- days.daysOfTheWeek) Console println s"$d is weekday? ${d.isWeekDay}"
}