org.drools.core.time.impl
Class JDKTimerService

java.lang.Object
  org.drools.core.time.impl.JDKTimerService

All Implemented Interfaces:

AcceptsTimerJobFactoryManager, InternalSchedulerService, SchedulerService, TimerService, org.kie.api.time.SessionClock

public class JDKTimerService
extends Object
implements TimerService, org.kie.api.time.SessionClock, InternalSchedulerService, AcceptsTimerJobFactoryManager

A default Scheduler implementation that uses the JDK built-in ScheduledThreadPoolExecutor as the scheduler and the system clock as the clock.

Nested Class Summary

static class

JDKTimerService.JDKJobHandle

Field Summary

protected TimerJobFactoryManager	jobFactoryManager
protected ScheduledThreadPoolExecutor	scheduler

Constructor Summary

JDKTimerService()

JDKTimerService(int size)

Method Summary

long	getCurrentTime() Returns the current time from the scheduler clock
TimerJobFactoryManager	getTimerJobFactoryManager()
Collection<TimerJobInstance>	getTimerJobInstances(int id) This method may return null for some TimerService implementations that do not want the overhead of maintain this.
long	getTimeToNextJob() Returns the number of time units (usually ms) to the next scheduled job
void	internalSchedule(TimerJobInstance timerJobInstance)
boolean	removeJob(JobHandle jobHandle) Remove the job identified by the given job handle from the scheduled queue
JobHandle	scheduleJob(Job job, JobContext ctx, Trigger trigger) Schedule a job for later execution
void	setCounter(long counter)
void	setTimerJobFactoryManager(TimerJobFactoryManager timerJobFactoryManager)
void	shutdown() Shuts the service down

Methods inherited from class java.lang.Object

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

Field Detail

scheduler

protected ScheduledThreadPoolExecutor scheduler

jobFactoryManager

protected TimerJobFactoryManager jobFactoryManager

Constructor Detail

JDKTimerService

public JDKTimerService()

JDKTimerService

public JDKTimerService(int size)

Method Detail

setTimerJobFactoryManager

public void setTimerJobFactoryManager(TimerJobFactoryManager timerJobFactoryManager)

Specified by:

setTimerJobFactoryManager in interface AcceptsTimerJobFactoryManager

setCounter

public void setCounter(long counter)

getTimerJobFactoryManager

public TimerJobFactoryManager getTimerJobFactoryManager()

Specified by:

getTimerJobFactoryManager in interface AcceptsTimerJobFactoryManager

getCurrentTime

public long getCurrentTime()

Description copied from interface: TimerService

Returns the current time from the scheduler clock

Specified by:

getCurrentTime in interface TimerService

Specified by:

getCurrentTime in interface org.kie.api.time.SessionClock

Returns:

the current timestamp

shutdown

public void shutdown()

Description copied from interface: TimerService

Shuts the service down

Specified by:

shutdown in interface TimerService

scheduleJob

public JobHandle scheduleJob(Job job,
                             JobContext ctx,
                             Trigger trigger)

Description copied from interface: SchedulerService

Schedule a job for later execution

Specified by:

scheduleJob in interface SchedulerService

Returns:

internalSchedule

public void internalSchedule(TimerJobInstance timerJobInstance)

Specified by:

internalSchedule in interface InternalSchedulerService

removeJob

public boolean removeJob(JobHandle jobHandle)

Description copied from interface: SchedulerService

Remove the job identified by the given job handle from the scheduled queue

Specified by:

removeJob in interface SchedulerService

Parameters:

jobHandle - the job identity handle

Returns:

getTimeToNextJob

public long getTimeToNextJob()

Description copied from interface: TimerService

Returns the number of time units (usually ms) to the next scheduled job

Specified by:

getTimeToNextJob in interface TimerService

Returns:

the number of time units until the next scheduled job or -1 if there is no job scheduled

getTimerJobInstances

public Collection<TimerJobInstance> getTimerJobInstances(int id)

Description copied from interface: TimerService

This method may return null for some TimerService implementations that do not want the overhead of maintain this.

Specified by:

getTimerJobInstances in interface TimerService

Returns: