reactor.bus.timer

Class EventTimer

java.lang.Object

reactor.bus.timer.EventTimer

All Implemented Interfaces:

reactor.fn.timer.Timer

public class EventTimer
extends java.lang.Object
implements reactor.fn.timer.Timer

A hashed wheel timer implementation that uses a Registry and custom Selectors to determine when tasks should be executed. This is specifically useful when RingBuffer HashWheelTimer is not supported (Android).

A SimpleHashWheelTimer has two variations for scheduling tasks: schedule(reactor.fn.Consumer, long, java.util.concurrent.TimeUnit) and schedule(reactor.fn.Consumer, long, java.util.concurrent.TimeUnit, long) which are for scheduling repeating tasks, and submit(reactor.fn.Consumer, long, java.util.concurrent.TimeUnit) which is for scheduling single-run delayed tasks.

To schedule a repeating task, specify the period of time which should elapse before invoking the given Consumer. To schedule a task that repeats every 5 seconds, for example, one would do something like:

   SimpleHashWheelTimer timer = new SimpleHashWheelTimer();

   timer.schedule(new Consumer<Long>() {
     public void accept(Long now) {
       // run a task
     }
   }, 5, TimeUnit.SECONDS);
 

NOTE: Without delaying a task, it will be run immediately, in addition to being run after the elapsed time has expired. To run a task only once every N time units and not immediately, use the schedule(reactor.fn.Consumer, long, java.util.concurrent.TimeUnit, long) method, which allows you to specify an additional delay that must expire before the task will be executed.

Method Summary

Modifier and Type	Method and Description
void	cancel()
long	getResolution()
Registration<? extends reactor.fn.Consumer<java.lang.Long>>	schedule(reactor.fn.Consumer<java.lang.Long> consumer, long period, java.util.concurrent.TimeUnit timeUnit)
Registration<? extends reactor.fn.Consumer<java.lang.Long>>	schedule(reactor.fn.Consumer<java.lang.Long> consumer, long period, java.util.concurrent.TimeUnit timeUnit, long delayInMilliseconds)
Registration<? extends reactor.fn.Consumer<java.lang.Long>>	submit(reactor.fn.Consumer<java.lang.Long> consumer)
Registration<? extends reactor.fn.Consumer<java.lang.Long>>	submit(reactor.fn.Consumer<java.lang.Long> consumer, long delay, java.util.concurrent.TimeUnit timeUnit)

Methods inherited from class java.lang.Object

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

Method Detail

getResolution

public long getResolution()

Specified by:

getResolution in interface reactor.fn.timer.Timer

schedule

public Registration<? extends reactor.fn.Consumer<java.lang.Long>> schedule(reactor.fn.Consumer<java.lang.Long> consumer,
                                                                            long period,
                                                                            java.util.concurrent.TimeUnit timeUnit,
                                                                            long delayInMilliseconds)

Specified by:

schedule in interface reactor.fn.timer.Timer

schedule

public Registration<? extends reactor.fn.Consumer<java.lang.Long>> schedule(reactor.fn.Consumer<java.lang.Long> consumer,
                                                                            long period,
                                                                            java.util.concurrent.TimeUnit timeUnit)

Specified by:

schedule in interface reactor.fn.timer.Timer

submit

public Registration<? extends reactor.fn.Consumer<java.lang.Long>> submit(reactor.fn.Consumer<java.lang.Long> consumer,
                                                                          long delay,
                                                                          java.util.concurrent.TimeUnit timeUnit)

Specified by:

submit in interface reactor.fn.timer.Timer

submit

public Registration<? extends reactor.fn.Consumer<java.lang.Long>> submit(reactor.fn.Consumer<java.lang.Long> consumer)

Specified by:

submit in interface reactor.fn.timer.Timer

cancel

public void cancel()

Specified by:

cancel in interface reactor.fn.timer.Timer