de.jollyday.util

Class CalendarUtil

java.lang.Object

de.jollyday.util.CalendarUtil

public class CalendarUtil
extends Object

Utility class for date operations.

Version:

$Id: $

Author:

Sven Diedrichsen

Constructor Summary

Constructors

Constructor and Description
CalendarUtil()

Method Summary

Modifier and Type	Method and Description
boolean	contains(Set<Holiday> holidays, LocalDate date) Shows if the requested dat is contained in the Set of holidays.
LocalDate	create() Creates the current date within the gregorian calendar.
LocalDate	create(Calendar c) Creates a LocalDate.
LocalDate	create(int year, de.jollyday.config.Fixed fixed) Creates the date from the month/day within the specified year.
LocalDate	create(int year, int month, int day) Creates the date within the ISO chronology.
ChronoLocalDate	create(int year, int month, int day, Chronology chronology) Creates the date within the provided chronology.
LocalDate	getEasterSunday(int year) Returns the easter sunday for a given year.
Set<LocalDate>	getEthiopianOrthodoxHolidaysInGregorianYear(int gregorianYear, int eoMonth, int eoDay) Returns a set of gregorian dates within a gregorian year which equal the ethiopian orthodox month and day.
LocalDate	getGregorianEasterSunday(int year) Returns the easter sunday within the gregorian chronology.
Set<LocalDate>	getIslamicHolidaysInGregorianYear(int gregorianYear, int islamicMonth, int islamicDay) Returns a set of gregorian dates within a gregorian year which equal the islamic month and day.
LocalDate	getJulianEasterSunday(int year) Returns the easter sunday within the julian chronology.
boolean	isWeekend(LocalDate date) Returns if this date is on a wekkend.

Methods inherited from class java.lang.Object

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

Constructor Detail

CalendarUtil

public CalendarUtil()

Method Detail

create

public LocalDate create()

Creates the current date within the gregorian calendar.

Returns:

today

create

public LocalDate create(int year,
                        int month,
                        int day)

Creates the date within the ISO chronology.

Parameters:

year - a int.

month - a int.

day - a int.

Returns:

date

create

public ChronoLocalDate create(int year,
                              int month,
                              int day,
                              Chronology chronology)

Creates the date within the provided chronology.

Parameters:

year - a int.

month - a int.

day - a int.

chronology - the chronology to use

Returns:

date the LocalDate

create

public LocalDate create(int year,
                        de.jollyday.config.Fixed fixed)

Creates the date from the month/day within the specified year.

Parameters:

year - a int.

fixed - a Fixed object.

Returns:

A local date instance.

create

public LocalDate create(Calendar c)

Creates a LocalDate. Does not use the Chronology of the Calendar.

Parameters:

c - a Calendar object.

Returns:

The local date representing the provided date.

getEasterSunday

public LocalDate getEasterSunday(int year)

Returns the easter sunday for a given year.

Parameters:

year - a int.

Returns:

Easter sunday.

getJulianEasterSunday

public LocalDate getJulianEasterSunday(int year)

Returns the easter sunday within the julian chronology.

Parameters:

year - a int.

Returns:

julian easter sunday

getGregorianEasterSunday

public LocalDate getGregorianEasterSunday(int year)

Returns the easter sunday within the gregorian chronology.

Parameters:

year - a int.

Returns:

gregorian easter sunday.

isWeekend

public boolean isWeekend(LocalDate date)

Returns if this date is on a wekkend.

Parameters:

date - a LocalDate object.

Returns:

is weekend

getIslamicHolidaysInGregorianYear

public Set<LocalDate> getIslamicHolidaysInGregorianYear(int gregorianYear,
                                                        int islamicMonth,
                                                        int islamicDay)

Returns a set of gregorian dates within a gregorian year which equal the islamic month and day. Because the islamic year is about 11 days shorter than the gregorian there may be more than one occurrence of an islamic date in an gregorian year. i.e.: In the gregorian year 2008 there were two 1/1. They occurred on 1/10 and 12/29.

Parameters:

gregorianYear - a int.

islamicMonth - a int.

islamicDay - a int.

Returns:

List of gregorian dates for the islamic month/day.

getEthiopianOrthodoxHolidaysInGregorianYear

public Set<LocalDate> getEthiopianOrthodoxHolidaysInGregorianYear(int gregorianYear,
                                                                  int eoMonth,
                                                                  int eoDay)

Returns a set of gregorian dates within a gregorian year which equal the ethiopian orthodox month and day. Because the ethiopian orthodox year different from the gregorian there may be more than one occurrence of an ethiopian orthodox date in an gregorian year.

Parameters:

gregorianYear - a int.

eoMonth - a int.

eoDay - a int.

Returns:

List of gregorian dates for the ethiopian orthodox month/day.

contains

public boolean contains(Set<Holiday> holidays,
                        LocalDate date)

Shows if the requested dat is contained in the Set of holidays.

Parameters:

holidays - a Set object.

date - a LocalDate object.

Returns:

contains this date