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import com.datastax.driver.core._ | |
import akka.stream.stage._ | |
import akka.stream._ | |
import akka.actor.ActorSystem | |
import akka.stream.ActorMaterializer | |
import akka.stream.scaladsl._ | |
object AkkaStreamTest2 extends App { | |
val system = ActorSystem.create("StreamsExamples") | |
import system.dispatcher |
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sealed case class Color(value: String) | |
object Color { | |
object red extends Color("red") | |
object green extends Color("green") | |
object blue extends Color("blue") | |
} | |
// pattren matching | |
val x = Color.red | |
val y = Color.green |