Demonstrating cake pattern

Cake.scala

trait IHaveLakeName {
  def lakeName: String
}

trait IHaveStreamName {
  def streamName: String
}

trait IHaveLakeAndStreamName extends IHaveLakeName with IHaveStreamName


trait CheckpointNameFromLakeAndStream extends HasCheckpointName { self: IHaveLakeName with IHaveStreamName =>
  override def checkpointName: String = s"${lakeName}_${streamName}"
}

class MyPuddle extends IHaveLakeName with IHaveStreamName with CheckpointNameFromLakeAndStream {
  override def lakeName: String = "awesome"
  override def streamName: String = "data"
}