Package com.scalagent.scheduler

Class CronEvent

java.lang.Object

com.scalagent.scheduler.ScheduleEvent

com.scalagent.scheduler.CronEvent

All Implemented Interfaces:

Serializable

public class CronEvent
extends ScheduleEvent

Event requesting a recurrent scheduling to a Scheduler. The recurring occurrence time is described in a cron like syntax, that is : <minutes> <hours> <days of month> <months> <days of week> <minutes> = [ 0-59 | * ] <hours> = [ 0-23 | * ] <days of month> = [ 1-31 | * ] <months> = [ 0-11 | * ] <days of week> = [ 0-6 | * ]

See Also:

Scheduler, ScheduleEvent, Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private static int	CRON_DOM	days of month
private static int	CRON_DOW	days of week
private static int	CRON_H	hours of day
private static int	CRON_MAX	max value (+1) for CRON_* constants
private static int	CRON_MN	minutes of hour
private static int	CRON_MOY	months of year
private static int[]	max	maximum for values designed by CRON_* constants
private static int[]	min	minimum for values designed by CRON_* constants
private BitSet[]	ranges	cron dates for this event
private static long	serialVersionUID	define serialVersionUID for interoperability
private static String[]	values	string image for CRON_* constants, by index in the table

Fields inherited from class com.scalagent.scheduler.ScheduleEvent

date, name, outdatedRestart

Constructor Summary

Constructors

Constructor	Description
CronEvent(String name, String date)	Creates an item.

Method Summary

Modifier and Type	Method	Description
protected Date	nextDate(Date now)	Returns the next scheduling date after current date given as parameter.
StringBuffer	toString(StringBuffer output)	Provides a string image for this object.

Methods inherited from class com.scalagent.scheduler.ScheduleEvent

toString

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

private static final long serialVersionUID

define serialVersionUID for interoperability

See Also:

Constant Field Values

CRON_MN

private static final int CRON_MN

minutes of hour

See Also:

Constant Field Values

CRON_H

private static final int CRON_H

hours of day

See Also:

Constant Field Values

CRON_DOM

private static final int CRON_DOM

days of month

See Also:

Constant Field Values

CRON_MOY

private static final int CRON_MOY

months of year

See Also:

Constant Field Values

CRON_DOW

private static final int CRON_DOW

days of week

See Also:

Constant Field Values

CRON_MAX

private static final int CRON_MAX

max value (+1) for CRON_* constants

See Also:

Constant Field Values

values

private static final String[] values

string image for CRON_* constants, by index in the table

min

private static final int[] min

minimum for values designed by CRON_* constants

max

private static final int[] max

maximum for values designed by CRON_* constants

ranges

private BitSet[] ranges

cron dates for this event

Constructor Detail

CronEvent

public CronEvent(String name,
                 String date)
          throws IllegalArgumentException

Creates an item.

Parameters:

name - event name

date - event scheduling date as a cron like string

Throws:

IllegalArgumentException - when date is misformed

Method Detail

toString

public StringBuffer toString(StringBuffer output)

Provides a string image for this object.

Overrides:

toString in class ScheduleEvent

Returns:

a string image for this object

nextDate

protected Date nextDate(Date now)

Returns the next scheduling date after current date given as parameter. The new date must be strictly greater than the current date. A null date leads to the scheduler deleting the event.

Overrides:

nextDate in class ScheduleEvent

Parameters:

now - current date

Returns:

next scheduling date after now