10d32fceb9
* previous `schedule` method is trying to maintain a fixed average frequency over time, but that can result in undesired bursts of scheduled tasks after a long GC or if the JVM process has been suspended, same with all other periodic scheduled message sending via various Timer APIs * most of the time "fixed delay" is more desirable * we can't just change because it's too big behavioral change and some might depend on previous behavior * deprecate the old `schedule` and introduce new `scheduleWithFixedDelay` and `scheduleAtFixedRate`, when fixing the deprecation warning users should make a concious decision of which behavior to use (scheduleWithFixedDelay in most cases) * Streams * SchedulerSpec * test both fixed delay and fixed rate * TimerSpec * FSM and PersistentFSM * mima * runnable as second parameter list, also in typed.Scheduler * IllegalStateException vs SchedulerException * deprecated annotations * api and reference docs, all places * migration guide
33 lines
691 B
Scala
33 lines
691 B
Scala
/*
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* Copyright (C) 2017-2019 Lightbend Inc. <https://www.lightbend.com>
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*/
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package docs.actor
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object TimerDocSpec {
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//#timers
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import scala.concurrent.duration._
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import akka.actor.Actor
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import akka.actor.Timers
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object MyActor {
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private case object TickKey
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private case object FirstTick
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private case object Tick
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}
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class MyActor extends Actor with Timers {
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import MyActor._
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timers.startSingleTimer(TickKey, FirstTick, 500.millis)
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def receive = {
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case FirstTick =>
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// do something useful here
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timers.startTimerWithFixedDelay(TickKey, Tick, 1.second)
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case Tick =>
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// do something useful here
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}
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}
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//#timers
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}
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