YearDayConverter.scala

implicit object YearDayConverter extends ByteConverter[YearDay] {
  val SPLITTER = "_".r
  override def toBytes(t:YearDay) = Bytes.toBytes(t.year.toString + "_" + t.day.toString)
  override def fromBytes(bytes:Array[Byte]) = {
    val strRep = Bytes.toString(bytes)
    val strRepSpl = SPLITTER.split(strRep)
    val year = strRepSpl(0).toInt
    val day = strRepSpl(1).toInt
    YearDay(year,day)
  }
}