我应该在scala类构造函数中声明什么类型的DateTime对象？

Question

Im trying to map rows from a cassandra table to a custom class but keep getting an IllegalArgumentException for the DateTime values. I've tried every type I can think of and they all throw the same exception. Help would be greatly appreciated. I'm a scala noob btw.

case class ClickData(Uuid: String, Tile: String, Latestclick: Long, OriginalTimestamp: Long, Rating: Int)

----------------------------

val data = sc.cassandraTable[ClickData]("test", "user_data")

data.foreach((i: ClickData) =>

  println("CASSIE ROW: "+i)


)

table row example:

uuid: 4hgfyt24854grh3fg34u3re47ff, tile: blah-blah, latest_click_timestamp: 2016-08-05 16:17:53+0100, original_timestamp: 2016-08-05 16:17:53+0100, rating: 1

Answer 1

You can find the default Java/Scala data types in Spark here . Depending on what your data base actually contains you may want to try:

• java.sql.Date for a DateType column
• java.sql.Timestamp for a TimestampType column

Answer 2

My parameter names did not match up with the column names, copying them out properly fixed my issue. They were of type Long as well.