Package org.apache.pekko.actor

Class AbstractScheduler

java.lang.Object

org.apache.pekko.actor.AbstractSchedulerBase

org.apache.pekko.actor.AbstractScheduler

All Implemented Interfaces:

Scheduler

public abstract class AbstractScheduler
extends AbstractSchedulerBase

An Apache Pekko scheduler service. This one needs one special behavior: if Closeable, it MUST execute all outstanding tasks upon .close() in order to properly shutdown all dispatchers.

Furthermore, this timer service MUST throw IllegalStateException if it cannot schedule a task. Once scheduled, the task MUST be executed. If executed upon close(), the task may execute before its timeout.

Scheduler implementation are loaded reflectively at ActorSystem start-up with the following constructor arguments: 1) the system’s com.typesafe.config.Config (from system.settings.config) 2) a org.apache.pekko.event.LoggingAdapter 3) a java.util.concurrent.ThreadFactory

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.pekko.actor.Scheduler

Scheduler.AtomicCancellable, Scheduler.TaskRunOnClose

Constructor Summary

Constructors

Constructor	Description
AbstractScheduler()

Method Summary

Modifier and Type	Method	Description
abstract double	maxFrequency()	The maximum supported task frequency of this scheduler, i.e.
Cancellable	scheduleOnce(Duration delay, Runnable runnable, scala.concurrent.ExecutionContext executor)	Schedules a Runnable to be run once with a delay, i.e.
abstract Cancellable	scheduleOnce(scala.concurrent.duration.FiniteDuration delay, Runnable runnable, scala.concurrent.ExecutionContext executor)	Schedules a Runnable to be run once with a delay, i.e.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.pekko.actor.Scheduler

schedule, scheduleAtFixedRate, scheduleAtFixedRate, scheduleAtFixedRate, scheduleAtFixedRate, scheduleAtFixedRate$default$6, scheduleOnce, scheduleOnce, scheduleOnce, scheduleOnce$default$5, scheduleWithFixedDelay, scheduleWithFixedDelay, scheduleWithFixedDelay, scheduleWithFixedDelay, scheduleWithFixedDelay$default$6

Constructor Details

AbstractScheduler

public AbstractScheduler()

Method Details

scheduleOnce

public abstract Cancellable scheduleOnce(scala.concurrent.duration.FiniteDuration delay,
 Runnable runnable,
 scala.concurrent.ExecutionContext executor)

Schedules a Runnable to be run once with a delay, i.e. a time period that has to pass before the runnable is executed.

scheduleOnce

public Cancellable scheduleOnce(Duration delay,
 Runnable runnable,
 scala.concurrent.ExecutionContext executor)

Schedules a Runnable to be run once with a delay, i.e. a time period that has to pass before the runnable is executed.

maxFrequency

public abstract double maxFrequency()

The maximum supported task frequency of this scheduler, i.e. the inverse of the minimum time interval between executions of a recurring task, in Hz.