com.ibm.util
Class BuddhistCalendar

java.lang.Object
  |
  +--com.ibm.util.Calendar
        |
        +--com.ibm.util.GregorianCalendar
              |
              +--com.ibm.util.BuddhistCalendar
All Implemented Interfaces:
java.lang.Cloneable, java.io.Serializable

public class BuddhistCalendar
extends GregorianCalendar

BuddhistCalendar is a subclass of GregorianCalendar that numbers years since the birth of the Buddha. This is the civil calendar in some predominantly Buddhist countries such as Thailand, and it is used for religious purposes elsewhere.

The Buddhist calendar is identical to the Gregorian calendar in all respects except for the year and era. Years are numbered since the birth of the Buddha in 543 BC (Gregorian), so that 1 AD (Gregorian) is equivalent to 544 BE (Buddhist Era) and 1998 AD is 2541 BE.

The Buddhist Calendar has only one allowable era: BE. If the calendar is not in lenient mode (see setLenient), dates before 1/1/1 BE are rejected with an IllegalArgumentException.

Author:
Laura Werner, Alan Liu
See Also:
GregorianCalendar, Serialized Form

Field Summary
static int BE
          Constant for the Buddhist Era.
 
Fields inherited from class com.ibm.util.GregorianCalendar
AD, BC, invertGregorian, isGregorian
 
Fields inherited from class com.ibm.util.Calendar
AM, AM_PM, APRIL, AUGUST, BASE_FIELD_COUNT, DATE, DAY_OF_MONTH, DAY_OF_WEEK, DAY_OF_WEEK_IN_MONTH, DAY_OF_YEAR, DECEMBER, DOW_LOCAL, DST_OFFSET, EPOCH_JULIAN_DAY, ERA, EXTENDED_YEAR, FEBRUARY, FRIDAY, GREATEST_MINIMUM, HOUR, HOUR_OF_DAY, INTERNALLY_SET, JAN_1_1_JULIAN_DAY, JANUARY, JULIAN_DAY, JULY, JUNE, LEAST_MAXIMUM, MARCH, MAX_DATE, MAX_FIELD_COUNT, MAX_JULIAN, MAX_MILLIS, MAXIMUM, MAY, MILLISECOND, MILLISECONDS_IN_DAY, MIN_DATE, MIN_JULIAN, MIN_MILLIS, MINIMUM, MINIMUM_USER_STAMP, MINUTE, MONDAY, MONTH, NOVEMBER, OCTOBER, ONE_DAY, ONE_HOUR, ONE_MINUTE, ONE_SECOND, ONE_WEEK, PM, RESOLVE_REMAP, SATURDAY, SECOND, SEPTEMBER, SUNDAY, THURSDAY, TUESDAY, UNDECIMBER, UNSET, WEDNESDAY, WEEK_OF_MONTH, WEEK_OF_YEAR, WEEKDAY, WEEKEND, WEEKEND_CEASE, WEEKEND_ONSET, YEAR, YEAR_WOY, ZONE_OFFSET
 
Constructor Summary
BuddhistCalendar()
          Constructs a BuddhistCalendar using the current time in the default time zone with the default locale.
BuddhistCalendar(java.util.Date date)
          Constructs a BuddhistCalendar with the given date set in the default time zone with the default locale.
BuddhistCalendar(int year, int month, int date)
          Constructs a BuddhistCalendar with the given date set in the default time zone with the default locale.
BuddhistCalendar(int year, int month, int date, int hour, int minute, int second)
          Constructs a BuddhistCalendar with the given date and time set for the default time zone with the default locale.
BuddhistCalendar(java.util.Locale aLocale)
          Constructs a BuddhistCalendar based on the current time in the default time zone with the given locale.
BuddhistCalendar(TimeZone zone)
          Constructs a BuddhistCalendar based on the current time in the given time zone with the default locale.
BuddhistCalendar(TimeZone zone, java.util.Locale aLocale)
          Constructs a BuddhistCalendar based on the current time in the given time zone with the given locale.
 
Method Summary
protected  void handleComputeFields(int julianDay)
          Override Calendar to compute several fields specific to the hybrid Gregorian-Julian calendar system.
protected  int handleComputeMonthStart(int eyear, int month, boolean useMonth)
          Return the Julian day number of day before the first day of the given month in the given extended year.
protected  int handleGetExtendedYear()
          Return the extended year defined by the current fields.
protected  int handleGetLimit(int field, int limitType)
          Override GregorianCalendar.
 
Methods inherited from class com.ibm.util.GregorianCalendar
add, computeZoneOffset, equals, getActualMaximum, getActualMinimum, getGregorianChange, handleComputeJulianDay, handleGetMonthLength, handleGetYearLength, hashCode, isLeapYear, roll, setGregorianChange
 
Methods inherited from class com.ibm.util.Calendar
after, before, clear, clear, clone, complete, computeFields, computeGregorianFields, computeGregorianMonthStart, computeJulianDay, computeMillisInDay, computeTime, fieldDifference, fieldName, floorDivide, floorDivide, floorDivide, floorDivide, get, getAvailableLocales, getDateTimeFormat, getDayOfWeekType, getDisplayName, getFieldCount, getFieldResolutionTable, getFirstDayOfWeek, getGreatestMinimum, getGregorianDayOfMonth, getGregorianDayOfYear, getGregorianMonth, getGregorianYear, getInstance, getInstance, getInstance, getInstance, getLeastMaximum, getLimit, getMaximum, getMinimalDaysInFirstWeek, getMinimum, getStamp, getTime, getTimeInMillis, getTimeZone, getWeekendTransition, gregorianMonthLength, gregorianPreviousMonthLength, handleCreateFields, handleGetDateFormat, internalGet, internalGet, internalGetTimeInMillis, internalSet, isGregorianLeapYear, isLenient, isSet, isWeekend, isWeekend, julianDayToDayOfWeek, julianDayToMillis, millisToJulianDay, newerField, newestStamp, pinField, prepareGetActual, resolveFields, roll, set, set, set, set, setFirstDayOfWeek, setLenient, setMinimalDaysInFirstWeek, setTime, setTimeInMillis, setTimeZone, toString, validateField, validateField, validateFields, weekNumber, weekNumber
 
Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait
 

Field Detail

BE

public static final int BE
Constant for the Buddhist Era. This is the only allowable ERA value for the Buddhist calendar.
See Also:
Calendar.ERA
Constructor Detail

BuddhistCalendar

public BuddhistCalendar()
Constructs a BuddhistCalendar using the current time in the default time zone with the default locale.

BuddhistCalendar

public BuddhistCalendar(TimeZone zone)
Constructs a BuddhistCalendar based on the current time in the given time zone with the default locale.
Parameters:
zone - the given time zone.

BuddhistCalendar

public BuddhistCalendar(java.util.Locale aLocale)
Constructs a BuddhistCalendar based on the current time in the default time zone with the given locale.
Parameters:
aLocale - the given locale.

BuddhistCalendar

public BuddhistCalendar(TimeZone zone,
                        java.util.Locale aLocale)
Constructs a BuddhistCalendar based on the current time in the given time zone with the given locale.
Parameters:
zone - the given time zone.
aLocale - the given locale.

BuddhistCalendar

public BuddhistCalendar(java.util.Date date)
Constructs a BuddhistCalendar with the given date set in the default time zone with the default locale.
Parameters:
date - The date to which the new calendar is set.

BuddhistCalendar

public BuddhistCalendar(int year,
                        int month,
                        int date)
Constructs a BuddhistCalendar with the given date set in the default time zone with the default locale.
Parameters:
year - The value used to set the calendar's YEAR time field.
month - The value used to set the calendar's MONTH time field. The value is 0-based. e.g., 0 for January.
date - The value used to set the calendar's DATE time field.

BuddhistCalendar

public BuddhistCalendar(int year,
                        int month,
                        int date,
                        int hour,
                        int minute,
                        int second)
Constructs a BuddhistCalendar with the given date and time set for the default time zone with the default locale.
Parameters:
year - The value used to set the calendar's YEAR time field.
month - The value used to set the calendar's MONTH time field. The value is 0-based. e.g., 0 for January.
date - The value used to set the calendar's DATE time field.
hour - The value used to set the calendar's HOUR_OF_DAY time field.
minute - The value used to set the calendar's MINUTE time field.
second - The value used to set the calendar's SECOND time field.
Method Detail

handleGetExtendedYear

protected int handleGetExtendedYear()
Description copied from class: Calendar
Return the extended year defined by the current fields. This will use the EXTENDED_YEAR field or the YEAR and supra-year fields (such as ERA) specific to the calendar system, depending on which set of fields is newer.
Overrides:
handleGetExtendedYear in class GregorianCalendar
Following copied from class: com.ibm.util.Calendar
Returns:
the extended year

handleComputeMonthStart

protected int handleComputeMonthStart(int eyear,
                                      int month,
                                      boolean useMonth)
Description copied from class: Calendar
Return the Julian day number of day before the first day of the given month in the given extended year. Subclasses should override this method to implement their calendar system.
Overrides:
handleComputeMonthStart in class GregorianCalendar
Following copied from class: com.ibm.util.Calendar
Parameters:
eyear - the extended year
month - the zero-based month, or 0 if useMonth is false
useMonth - if false, compute the day before the first day of the given year, otherwise, compute the day before the first day of the given month
return - the Julian day number of the day before the first day of the given month and year

handleComputeFields

protected void handleComputeFields(int julianDay)
Description copied from class: GregorianCalendar
Override Calendar to compute several fields specific to the hybrid Gregorian-Julian calendar system. These are:
Overrides:
handleComputeFields in class GregorianCalendar

handleGetLimit

protected int handleGetLimit(int field,
                             int limitType)
Override GregorianCalendar. There is only one Buddhist ERA. We should really handle YEAR, YEAR_WOY, and EXTENDED_YEAR here too to implement the 1..5000000 range, but it's not critical.
Overrides:
handleGetLimit in class GregorianCalendar
Following copied from class: com.ibm.util.Calendar
Parameters:
field - one of the above field numbers
limitType - one of MINIMUM, GREATEST_MINIMUM, LEAST_MAXIMUM, or MAXIMUM


Copyright (c) 1998-2000 IBM Corporation and others.