org.quartz
Interface Calendar

All Superinterfaces:

Cloneable, Serializable

All Known Implementing Classes:

AnnualCalendar, BaseCalendar, CronCalendar, DailyCalendar, HolidayCalendar, MonthlyCalendar, WeeklyCalendar

public interface Calendar
extends Serializable, Cloneable

An interface to be implemented by objects that define spaces of time during which an associated Trigger may (not) fire. Calendars do not define actual fire times, but rather are used to limit a Trigger from firing on its normal schedule if necessary. Most Calendars include all times by default and allow the user to specify times to exclude.

As such, it is often useful to think of Calendars as being used to exclude a block of time - as opposed to include a block of time. (i.e. the schedule "fire every five minutes except on Sundays" could be implemented with a SimpleTrigger and a WeeklyCalendar which excludes Sundays)

Implementations MUST take care of being properly Cloneable and Serializable.

Author:

James House, Juergen Donnerstag

Field Summary

static int

MONTH

Method Summary

Object	clone()
Calendar	getBaseCalendar() Get the base calendar.
String	getDescription() Return the description given to the Calendar instance by its creator (if any).
long	getNextIncludedTime(long timeStamp) Determine the next time (in milliseconds) that is 'included' by the Calendar after the given time.
boolean	isTimeIncluded(long timeStamp) Determine whether the given time (in milliseconds) is 'included' by the Calendar.
void	setBaseCalendar(Calendar baseCalendar) Set a new base calendar or remove the existing one.
void	setDescription(String description) Set a description for the Calendar instance - may be useful for remembering/displaying the purpose of the calendar, though the description has no meaning to Quartz.

Field Detail

MONTH

static final int MONTH

See Also:

Constant Field Values

Method Detail

setBaseCalendar

void setBaseCalendar(Calendar baseCalendar)

Set a new base calendar or remove the existing one.

getBaseCalendar

Calendar getBaseCalendar()

Get the base calendar. Will be null, if not set.

isTimeIncluded

boolean isTimeIncluded(long timeStamp)

Determine whether the given time (in milliseconds) is 'included' by the Calendar.

getNextIncludedTime

long getNextIncludedTime(long timeStamp)

Determine the next time (in milliseconds) that is 'included' by the Calendar after the given time.

getDescription

String getDescription()

Return the description given to the Calendar instance by its creator (if any).

Returns:

null if no description was set.

setDescription

void setDescription(String description)

Set a description for the Calendar instance - may be useful for remembering/displaying the purpose of the calendar, though the description has no meaning to Quartz.

clone

Object clone()