Package org.apache.tapestry5.ioc.services.cron

Class CronSchedule

org.apache.tapestry5.ioc.services.cron.CronSchedule

All Implemented Interfaces:

Schedule

public class CronSchedule
extends 
implements Schedule

Constructor Summary

Constructors

Constructor	Description
cronExpression)
cronExpression, timeZone)

Method Summary

Modifier and Type	Method	Description
long	firstExecution()	For a newly created job, what is the start time for the job.
long	nextExecution(long previousExecution)	Computes the next execution time for a job.

Methods inherited from class java.lang.

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Constructor Detail

CronSchedule

public  cronExpression)

CronSchedule

public  cronExpression,
                     timeZone)

Method Detail

firstExecution

public long firstExecution()

Description copied from interface: Schedule

For a newly created job, what is the start time for the job. Often, the current clock time is returned, to start a job as soon as possible.

Specified by:

firstExecution in interface Schedule

Returns:

start time for new job, in system clock millis

nextExecution

public long nextExecution(long previousExecution)

Description copied from interface: Schedule

Computes the next execution time for a job.

Specified by:

nextExecution in interface Schedule

Parameters:

previousExecution - time of previous execution (in system clock millis)

Returns:

time of next execution (in system clock millis) or a value <= 0 to cancel the job's execution