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Future[Option]から値を取得

Scala

Posted at 2015-03-31

import scala.concurrent.Future
import scala.concurrent.ExecutionContext.Implicits.global
 
object FutureExample {
  def getObject[T](value: Future[Option[T]]): Future[T] = {
    value.map(_.getOrElse(throw new Exception(s"Option is empty")))
  }
}

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