OptionalExample.scala

case class Person(id: Int,firstName: String, lastName: String)

object  PersonRepository {

  private val people = Map(
    1 -> Person(1,"Shah","Dave"),
    2 -> Person(2,"Barington","Foo")
  )

  def findByIds(ids: List[Int]) : List[Option[Person]] = {
    ids.map(id => people.get(id))
  }
}


val peeps = PersonRepository.findByIds(List(1,2,3))


peeps.foreach(peep => println(peep))