How to pattern match large Scala case classes?

Question

Consider the following Scala case class:

case class WideLoad(a: String, b: Int, c: Float, d: ActorRef, e: Date)

Pattern matching allows me

Answer 1

I don't know if this is appropriate, but you can also build an object just to match that field, or that set of fields (untested code):

object WideLoadActorRef {
  def unapply(wl: WideLoad): Option[ActorRef] = { Some(wl.d) }
}

someVal match {
  case WideLoadActorRef(d) => d ! someMessage
}

or even

object WideLoadBnD {
  def unapplySeq(wl: WideLoad): Option[(Int,ActorRef)] = { Some((wl.b,wl.d)) }
}

someVal match {
  case WideLoadBnD(b, d) => d ! SomeMessage(b)
}