com.espertech.esper.timer
Interface TimerService

All Known Implementing Classes:

TimerServiceImpl

public interface TimerService

Service interface for repeated callbacks at regular intervals.

Method Summary

void	disableStats() Disable statistics.
void	enableStats() Enable statistics.
long	getInvocationCount() Return invocation count.
long	getLastDrift() Return last drift.
long	getMaxDrift() Return maximum drift.
long	getTotalDrift() Return total drift.
void	setCallback(TimerCallback timerCallback) Set the callback method to invoke for clock ticks.
void	startInternalClock() Start clock expecting callbacks at regular intervals and a fixed rate.
void	stopInternalClock(boolean warnIfNotStarted) Stop internal clock.

Method Detail

setCallback

void setCallback(TimerCallback timerCallback)

Set the callback method to invoke for clock ticks.

Parameters:

timerCallback - is the callback

startInternalClock

void startInternalClock()

Start clock expecting callbacks at regular intervals and a fixed rate. Catch-up callbacks are possible should the callback fall behind.

stopInternalClock

void stopInternalClock(boolean warnIfNotStarted)

Stop internal clock.

Parameters:

warnIfNotStarted - use true to indicate whether to warn if the clock is not started, use false to not warn and expect the clock to be not started.

enableStats

void enableStats()

Enable statistics.

disableStats

void disableStats()

Disable statistics.

getMaxDrift

long getMaxDrift()

Return maximum drift.

Returns:

drift

getLastDrift

long getLastDrift()

Return last drift.

Returns:

drift

getTotalDrift

long getTotalDrift()

Return total drift.

Returns:

drift

getInvocationCount

long getInvocationCount()

Return invocation count.

Returns:

count