org.quartz.impl.calendar

Class BaseCalendar

java.lang.Object

org.quartz.impl.calendar.BaseCalendar

All Implemented Interfaces:

Serializable, Cloneable, Calendar

Direct Known Subclasses:

AnnualCalendar, CronCalendar, DailyCalendar, HolidayCalendar, MonthlyCalendar, WeeklyCalendar

public class BaseCalendar
extends Object
implements Calendar, Serializable, Cloneable

This implementation of the Calendar may be used (you don't have to) as a base class for more sophisticated one's. It merely implements the base functionality required by each Calendar.

Regarded as base functionality is the treatment of base calendars. Base calendar allow you to chain (stack) as much calendars as you may need. For example to exclude weekends you may use WeeklyCalendar. In order to exclude holidays as well you may define a WeeklyCalendar instance to be the base calendar for HolidayCalendar instance.

Author:

Juergen Donnerstag, James House

See Also:

Calendar, Serialized Form

Field Summary

Fields inherited from interface org.quartz.Calendar

MONTH

Constructor Summary

Constructors

Constructor and Description
BaseCalendar()
BaseCalendar(Calendar baseCalendar)
BaseCalendar(Calendar baseCalendar, TimeZone timeZone)
BaseCalendar(TimeZone timeZone)

Method Summary

Modifier and Type	Method and Description
Object	clone()
protected Calendar	createJavaCalendar() Build a Calendar with the current time.
protected Calendar	createJavaCalendar(long timeStamp) Build a Calendar for the given timeStamp.
Calendar	getBaseCalendar() Get the base calendar.
String	getDescription() Return the description given to the Calendar instance by its creator (if any).
protected Calendar	getEndOfDayJavaCalendar(long timeInMillis) Returns the end of the given day Calendar.
long	getNextIncludedTime(long timeStamp) Determine the next time (in milliseconds) that is 'included' by the Calendar after the given time.
protected Calendar	getStartOfDayJavaCalendar(long timeInMillis) Returns the start of the given day as a Calendar.
TimeZone	getTimeZone() Returns the time zone for which this Calendar will be resolved.
boolean	isTimeIncluded(long timeStamp) Check if date/time represented by timeStamp is included.
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.
void	setTimeZone(TimeZone timeZone) Sets the time zone for which this Calendar will be resolved.

Methods inherited from class java.lang.Object

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

Constructor Detail

BaseCalendar

public BaseCalendar()

BaseCalendar

public BaseCalendar(Calendar baseCalendar)

BaseCalendar

public BaseCalendar(TimeZone timeZone)

Parameters:

timeZone - The time zone to use for this Calendar, null if TimeZone.getDefault() should be used

BaseCalendar

public BaseCalendar(Calendar baseCalendar,
                    TimeZone timeZone)

Parameters:

timeZone - The time zone to use for this Calendar, null if TimeZone.getDefault() should be used

Method Detail

clone

public Object clone()

Specified by:

clone in interface Calendar

Overrides:

clone in class Object

setBaseCalendar

public void setBaseCalendar(Calendar baseCalendar)

Set a new base calendar or remove the existing one

Specified by:

setBaseCalendar in interface Calendar

getBaseCalendar

public Calendar getBaseCalendar()

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

Specified by:

getBaseCalendar in interface Calendar

getDescription

public String getDescription()

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

Specified by:

getDescription in interface Calendar

Returns:

null if no description was set.

setDescription

public 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.

Specified by:

setDescription in interface Calendar

getTimeZone

public TimeZone getTimeZone()

Returns the time zone for which this Calendar will be resolved.

Returns:

This Calendar's timezone, null if Calendar should use the TimeZone.getDefault()

setTimeZone

public void setTimeZone(TimeZone timeZone)

Sets the time zone for which this Calendar will be resolved.

Parameters:

timeZone - The time zone to use for this Calendar, null if TimeZone.getDefault() should be used

isTimeIncluded

public boolean isTimeIncluded(long timeStamp)

Check if date/time represented by timeStamp is included. If included return true. The implementation of BaseCalendar simply calls the base calendars isTimeIncluded() method if base calendar is set.

Specified by:

isTimeIncluded in interface Calendar

See Also:

Calendar.isTimeIncluded(long)

getNextIncludedTime

public long getNextIncludedTime(long timeStamp)

Determine the next time (in milliseconds) that is 'included' by the Calendar after the given time. Return the original value if timeStamp is included. Return 0 if all days are excluded.

Specified by:

getNextIncludedTime in interface Calendar

See Also:

Calendar.getNextIncludedTime(long)

createJavaCalendar

protected Calendar createJavaCalendar(long timeStamp)

Build a Calendar for the given timeStamp. The new Calendar will use the BaseCalendar time zone if it is not null.

createJavaCalendar

protected Calendar createJavaCalendar()

Build a Calendar with the current time. The new Calendar will use the BaseCalendar time zone if it is not null.

getStartOfDayJavaCalendar

protected Calendar getStartOfDayJavaCalendar(long timeInMillis)

Returns the start of the given day as a Calendar. This calculation will take the BaseCalendar time zone into account if it is not null.

Parameters:

timeInMillis - A time containing the desired date for the start-of-day time

Returns:

A Calendar set to the start of the given day.

getEndOfDayJavaCalendar

protected Calendar getEndOfDayJavaCalendar(long timeInMillis)

Returns the end of the given day Calendar. This calculation will take the BaseCalendar time zone into account if it is not null.

Parameters:

timeInMillis - a time containing the desired date for the end-of-day time.

Returns:

A Calendar set to the end of the given day.