Class MinguoChronology
- java.lang.Object
-
- java.time.chrono.AbstractChronology
-
- java.time.chrono.MinguoChronology
- All Implemented Interfaces:
-
Serializable
,Comparable<Chronology>
,Chronology
public final class MinguoChronology extends AbstractChronology implements Serializable
The Minguo calendar system.
This chronology defines the rules of the Minguo calendar system. This calendar system is primarily used in the Republic of China, often known as Taiwan. Dates are aligned such that 0001-01-01 (Minguo)
is 1912-01-01 (ISO)
.
The fields are defined as follows:
- era - There are two eras, the current 'Republic' (ERA_ROC) and the previous era (ERA_BEFORE_ROC).
- year-of-era - The year-of-era for the current era increases uniformly from the epoch at year one. For the previous era the year increases from one as time goes backwards. The value for the current era is equal to the ISO proleptic-year minus 1911.
- proleptic-year - The proleptic year is the same as the year-of-era for the current era. For the previous era, years have zero, then negative values. The value is equal to the ISO proleptic-year minus 1911.
- month-of-year - The Minguo month-of-year exactly matches ISO.
- day-of-month - The Minguo day-of-month exactly matches ISO.
- day-of-year - The Minguo day-of-year exactly matches ISO.
- leap-year - The Minguo leap-year pattern exactly matches ISO, such that the two calendars are never out of step.
- Implementation Requirements:
- This class is immutable and thread-safe.
- Since:
- 1.8
- See Also:
- Serialized Form
Field Summary
Modifier and Type | Field | Description |
---|---|---|
static MinguoChronology | INSTANCE | Singleton instance for the Minguo chronology. |
Method Summary
Modifier and Type | Method | Description |
---|---|---|
MinguoDate | date(int prolepticYear,
int month,
int dayOfMonth) | Obtains a local date in Minguo calendar system from the proleptic-year, month-of-year and day-of-month fields. |
MinguoDate | date(Era era,
int yearOfEra,
int month,
int dayOfMonth) | Obtains a local date in Minguo calendar system from the era, year-of-era, month-of-year and day-of-month fields. |
MinguoDate | dateEpochDay(long epochDay) | Obtains a local date in the Minguo calendar system from the epoch-day. |
MinguoDate | dateYearDay(int prolepticYear,
int dayOfYear) | Obtains a local date in Minguo calendar system from the proleptic-year and day-of-year fields. |
MinguoDate | dateYearDay(Era era,
int yearOfEra,
int dayOfYear) | Obtains a local date in Minguo calendar system from the era, year-of-era and day-of-year fields. |
String | getCalendarType() | Gets the calendar type of the underlying calendar system - 'roc'. |
String | getId() | Gets the ID of the chronology - 'Minguo'. |
boolean | isLeapYear(long prolepticYear) | Checks if the specified year is a leap year. |
Methods declared in class java.time.chrono.AbstractChronology
compareTo, equals, hashCode, resolveDate, toString
Methods declared in class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
Methods declared in interface java.time.chrono.Chronology
date, dateNow, dateNow, dateNow, epochSecond, epochSecond, eraOf, eras, getDisplayName, localDateTime, period, prolepticYear, range, zonedDateTime, zonedDateTime
Field Detail
INSTANCE
public static final MinguoChronology INSTANCE
Singleton instance for the Minguo chronology.
Method Detail
getId
public String getId()
Gets the ID of the chronology - 'Minguo'.
The ID uniquely identifies the Chronology
. It can be used to lookup the Chronology
using Chronology.of(String)
.
- Specified by:
-
getId
in interfaceChronology
- Returns:
- the chronology ID - 'Minguo'
- See Also:
getCalendarType()
getCalendarType
public String getCalendarType()
Gets the calendar type of the underlying calendar system - 'roc'.
The calendar type is an identifier defined by the Unicode Locale Data Markup Language (LDML) specification. It can be used to lookup the Chronology
using Chronology.of(String)
. It can also be used as part of a locale, accessible via Locale.getUnicodeLocaleType(String)
with the key 'ca'.
- Specified by:
-
getCalendarType
in interfaceChronology
- Returns:
- the calendar system type - 'roc'
- See Also:
getId()
date
public MinguoDate date(Era era, int yearOfEra, int month, int dayOfMonth)
Obtains a local date in Minguo calendar system from the era, year-of-era, month-of-year and day-of-month fields.
- Specified by:
-
date
in interfaceChronology
- Parameters:
-
era
- the Minguo era, not null -
yearOfEra
- the year-of-era -
month
- the month-of-year -
dayOfMonth
- the day-of-month - Returns:
- the Minguo local date, not null
- Throws:
-
DateTimeException
- if unable to create the date -
ClassCastException
- if theera
is not aMinguoEra
date
public MinguoDate date(int prolepticYear, int month, int dayOfMonth)
Obtains a local date in Minguo calendar system from the proleptic-year, month-of-year and day-of-month fields.
- Specified by:
-
date
in interfaceChronology
- Parameters:
-
prolepticYear
- the proleptic-year -
month
- the month-of-year -
dayOfMonth
- the day-of-month - Returns:
- the Minguo local date, not null
- Throws:
-
DateTimeException
- if unable to create the date
dateYearDay
public MinguoDate dateYearDay(Era era, int yearOfEra, int dayOfYear)
Obtains a local date in Minguo calendar system from the era, year-of-era and day-of-year fields.
- Specified by:
-
dateYearDay
in interfaceChronology
- Parameters:
-
era
- the Minguo era, not null -
yearOfEra
- the year-of-era -
dayOfYear
- the day-of-year - Returns:
- the Minguo local date, not null
- Throws:
-
DateTimeException
- if unable to create the date -
ClassCastException
- if theera
is not aMinguoEra
dateYearDay
public MinguoDate dateYearDay(int prolepticYear, int dayOfYear)
Obtains a local date in Minguo calendar system from the proleptic-year and day-of-year fields.
- Specified by:
-
dateYearDay
in interfaceChronology
- Parameters:
-
prolepticYear
- the proleptic-year -
dayOfYear
- the day-of-year - Returns:
- the Minguo local date, not null
- Throws:
-
DateTimeException
- if unable to create the date
dateEpochDay
public MinguoDate dateEpochDay(long epochDay)
Obtains a local date in the Minguo calendar system from the epoch-day.
- Specified by:
-
dateEpochDay
in interfaceChronology
- Parameters:
-
epochDay
- the epoch day - Returns:
- the Minguo local date, not null
- Throws:
-
DateTimeException
- if unable to create the date
isLeapYear
public boolean isLeapYear(long prolepticYear)
Checks if the specified year is a leap year.
Minguo leap years occur exactly in line with ISO leap years. This method does not validate the year passed in, and only has a well-defined result for years in the supported range.
- Specified by:
-
isLeapYear
in interfaceChronology
- Parameters:
-
prolepticYear
- the proleptic-year to check, not validated for range - Returns:
- true if the year is a leap year