我在一个Actor中有以下代码
def receive = {
case All() => {
val collection: BSONCollection = db("ping")
val future:Future[List[Ping]] = collection.find(BSONDocument()).cursor[Ping].toList()
val zender = sender
future onComplete {
case Success(list) => zender ! list
case Failure(throwable) => zender ! List()
}
}
}
我不喜欢使用 onComplete 函数将结果发送回发件人 actor。我想知道是否有可能将其转换为以下形式:
def receive = {
case All() => {
val collection: BSONCollection = db("ping")
val future:Future[List[Ping]] = collection.find(BSONDocument()).cursor[Ping].toList()
"sender ! future" // one option
"future.map( list => sender ! list)" //Another option. I know it's not map, but maybe another function
}
}
我觉得使用future chaining更加流畅。