scala combinedtablemetadata

gistfile1.scala

// doesn't work
class CombinedTableMetadata[A](op: (List[A], List[A]) => List[A]) {
	val listInts1 : List[Int]
	val listInts2 : List[Int]
	
	val listStrings1: List[String]
	val listStrings2: List[String]
	
	def doThis : List[Int] = op(listInts1, listInts2)
	def doThat : List[String] = op(listStrings1, listStrings2)
}

// works
class CombinedTableMetadata2 {
	def op[A](left: List[A], right: List[A]) : List[A]
	
	val listInts1 : List[Int]
	val listInts2 : List[Int]
	
	val listStrings1: List[String]
	val listStrings2: List[String]
	
	def doThis : List[Int] = op(listInts1, listInts2)
	def doThat : List[String] = op(listStrings1, listStrings2)
}