org.springframework.integration.scheduling
Class CronTrigger

java.lang.Object
  org.springframework.integration.scheduling.CronTrigger

All Implemented Interfaces:

Trigger

public class CronTrigger
extends java.lang.Object
implements Trigger

A trigger that uses a cron expression. See CronSequenceGenerator for a detailed description of the expression pattern syntax.

Author:

Mark Fisher

Constructor Summary

CronTrigger(java.lang.String expression)
Create a trigger for the given cron expression.

Method Summary

boolean	equals(java.lang.Object other)
java.util.Date	getNextRunTime(java.util.Date lastScheduledRunTime, java.util.Date lastCompleteTime) Return the next time a task should run.
int	hashCode()

Methods inherited from class java.lang.Object

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

Constructor Detail

CronTrigger

public CronTrigger(java.lang.String expression)
            throws java.lang.IllegalArgumentException

Create a trigger for the given cron expression. See CronSequenceGenerator.

Throws:

java.lang.IllegalArgumentException

Method Detail

getNextRunTime

public java.util.Date getNextRunTime(java.util.Date lastScheduledRunTime,
                                     java.util.Date lastCompleteTime)

Return the next time a task should run. Determined by consulting this trigger's cron expression compared with the lastCompleteTime. If the lastCompleteTime is null, the current time is used.

Specified by:

getNextRunTime in interface Trigger

Parameters:

lastScheduledRunTime - last time the relevant task was scheduled to run, or null if it has never been scheduled

lastCompleteTime - last time the relevant task finished or null if it did not run to completion

Returns:

next time that a task should run

equals

public boolean equals(java.lang.Object other)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object