Scala responsibility chain pattern

// Scala in , The case where a class inherits more than one trait is called superposition trait 
object  Responsibility chain pattern  {
    

  trait Handler {
    
    def handle(data: String): Unit = {
    
      println(" Process specific data ... 4")
      println(data + " 5")
    }
  }

  trait DataValidHandler extends Handler {
    
    override def handle(data: String): Unit = {
    
      println(" Check the data  3")
      super.handle(data)
    }
  }

  trait SignatureValidHandler extends Handler {
    
    override def handle(data: String): Unit = {
    
      println(" Inspection signature  2")
      super.handle(data)
    }
  }

  class Payment extends DataValidHandler with SignatureValidHandler {
    

    def pay(data: String): Unit = {
    
      println(" User initiated payment request  1")
      super.handle(data)
    }

  }

  def main(args: Array[String]): Unit = {
    
    val p = new Payment
    p.pay(" Zhang San transfers it to Sister Feng 1000 element ")
  }

}