Background task in Scala
There are many ways to do that, but I would do something simple like the following.
import scala.concurrent.ops._spawn { while (true) { Thread.sleep(1000); // clear the cache's old entries }}Hope this helps.
You could use Akka Scheduler, which allows you to send a reccuring message to an (akka) actor doing the job. From the doc, just use:
import akka.actor.Scheduler//Sends messageToBeSent to receiverActor after initialDelayBeforeSending and then after each delayBetweenMessagesScheduler.schedule(receiverActor, messageToBeSent, initialDelayBeforeSending, delayBetweenMessages, timeUnit)
Futures is a simple way to do it without explicitly starting a new thread
import scala.actors.Futures._// main thread code herefuture { // second thread code here}// main thread code here