scala - 无法解析符号Map

时间:2016-06-17 11:49:08

标签: scala flink-streaming flink-cep

我正在编写一个简单的代码来测试Scala中的CEP library,maven依赖版 1.1-SNAPSHOT 。我的代码:

val res = igd.filter(_._2 == 13)
val pattern: Pattern[(Long,String,String,Long), _] = Pattern.begin[(Long,String,String,Long)]("start").where(_._3 == true).next("end").where(_._3 == false)
val patternStream: PatternStream[(Long,String,String,Long)] = CEP.pattern(res, pattern)

def selectFn(pattern : mutable.Map[String,(Long,String,String,Long)]): String = {
  val startEvent = pattern.get("start").get
  "Alerta:"+startEvent._1+": Pattern"
   }

val patternStreamSelected = patternStream.select(selectFn(_)).print

selecFn中,地图显示为红色,并显示消息cannot resolve symbol Map 问题出在哪儿??先感谢您。

1 个答案:

答案 0 :(得分:0)

哦,我的...,我正在导入scala.collection.parallel.mutable而不是scala.collection.mutable。无论如何,我认为scala lib仍然不起作用,我的小测试没有做到,你可以阅读Simple Scala API for CEP example don't show any output