MinguoChronology
public
final
class
MinguoChronology
extends AbstractChronology
implements
Serializable
| java.lang.Object | ||
| ↳ | java.time.chrono.AbstractChronology | |
| ↳ | java.time.chrono.MinguoChronology | |
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.
Summary
Fields | |
|---|---|
public
static
final
MinguoChronology |
INSTANCE
Singleton instance for the Minguo chronology. |
Public methods | |
|---|---|
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
|
date(TemporalAccessor temporal)
|
MinguoDate
|
dateEpochDay(long epochDay)
Obtains a local date in the Minguo calendar system from the epoch-day. |
MinguoDate
|
dateNow(ZoneId zone)
|
MinguoDate
|
dateNow()
|
MinguoDate
|
dateNow(Clock clock)
|
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. |
MinguoDate
|
dateYearDay(int prolepticYear, int dayOfYear)
Obtains a local date in Minguo calendar system from the proleptic-year and day-of-year fields. |
MinguoEra
|
eraOf(int eraValue)
|
List<Era>
|
eras()
|
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. |
ChronoLocalDateTime<MinguoDate>
|
localDateTime(TemporalAccessor temporal)
|
int
|
prolepticYear(Era era, int yearOfEra)
|
ValueRange
|
range(ChronoField field)
|
MinguoDate
|
resolveDate(Map<TemporalField, Long> fieldValues, ResolverStyle resolverStyle)
Resolves parsed |
ChronoZonedDateTime<MinguoDate>
|
zonedDateTime(TemporalAccessor temporal)
|
ChronoZonedDateTime<MinguoDate>
|
zonedDateTime(Instant instant, ZoneId zone)
|
Inherited methods | |
|---|---|
Fields
INSTANCE
public static final MinguoChronology INSTANCE
Singleton instance for the Minguo chronology.
Public methods
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.
| Parameters | |
|---|---|
prolepticYear |
int: the proleptic-year |
month |
int: the month-of-year |
dayOfMonth |
int: the day-of-month |
| Returns | |
|---|---|
MinguoDate |
the Minguo local date, not null |
| Throws | |
|---|---|
DateTimeException |
if unable to create the date |
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.
| Parameters | |
|---|---|
era |
Era: the Minguo era, not null |
yearOfEra |
int: the year-of-era |
month |
int: the month-of-year |
dayOfMonth |
int: the day-of-month |
| Returns | |
|---|---|
MinguoDate |
the Minguo local date, not null |
| Throws | |
|---|---|
ClassCastException |
if the era is not a MinguoEra |
DateTimeException |
if unable to create the date |
date
public MinguoDate date (TemporalAccessor temporal)
| Parameters | |
|---|---|
temporal |
TemporalAccessor |
| Returns | |
|---|---|
MinguoDate |
|
dateEpochDay
public MinguoDate dateEpochDay (long epochDay)
Obtains a local date in the Minguo calendar system from the epoch-day.
| Parameters | |
|---|---|
epochDay |
long: the epoch day |
| Returns | |
|---|---|
MinguoDate |
the Minguo local date, not null |
| Throws | |
|---|---|
DateTimeException |
if unable to create the date |
dateNow
public MinguoDate dateNow (ZoneId zone)
| Parameters | |
|---|---|
zone |
ZoneId |
| Returns | |
|---|---|
MinguoDate |
|
dateNow
public MinguoDate dateNow (Clock clock)
| Parameters | |
|---|---|
clock |
Clock |
| Returns | |
|---|---|
MinguoDate |
|
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.
| Parameters | |
|---|---|
era |
Era: the Minguo era, not null |
yearOfEra |
int: the year-of-era |
dayOfYear |
int: the day-of-year |
| Returns | |
|---|---|
MinguoDate |
the Minguo local date, not null |
| Throws | |
|---|---|
ClassCastException |
if the era is not a MinguoEra |
DateTimeException |
if unable to create the date |
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.
| Parameters | |
|---|---|
prolepticYear |
int: the proleptic-year |
dayOfYear |
int: the day-of-year |
| Returns | |
|---|---|
MinguoDate |
the Minguo local date, not null |
| Throws | |
|---|---|
DateTimeException |
if unable to create the date |
eraOf
public MinguoEra eraOf (int eraValue)
| Parameters | |
|---|---|
eraValue |
int |
| Returns | |
|---|---|
MinguoEra |
|
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'.
| Returns | |
|---|---|
String |
the calendar system type - 'roc' |
See also:
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).
| Returns | |
|---|---|
String |
the chronology ID - 'Minguo' |
See also:
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.
| Parameters | |
|---|---|
prolepticYear |
long: the proleptic-year to check, not validated for range |
| Returns | |
|---|---|
boolean |
true if the year is a leap year |
localDateTime
public ChronoLocalDateTime<MinguoDate> localDateTime (TemporalAccessor temporal)
| Parameters | |
|---|---|
temporal |
TemporalAccessor |
| Returns | |
|---|---|
ChronoLocalDateTime<MinguoDate> |
|
prolepticYear
public int prolepticYear (Era era, int yearOfEra)
| Parameters | |
|---|---|
era |
Era |
yearOfEra |
int |
| Returns | |
|---|---|
int |
|
range
public ValueRange range (ChronoField field)
| Parameters | |
|---|---|
field |
ChronoField |
| Returns | |
|---|---|
ValueRange |
|
resolveDate
public MinguoDate resolveDate (Map<TemporalField, Long> fieldValues, ResolverStyle resolverStyle)
Resolves parsed ChronoField values into a date during parsing.
Most TemporalField implementations are resolved using the
resolve method on the field. By contrast, the ChronoField class
defines fields that only have meaning relative to the chronology.
As such, ChronoField date fields are resolved here in the
context of a specific chronology.
ChronoField instances are resolved by this method, which may
be overridden in subclasses.
EPOCH_DAY- If present, this is converted to a date and all other date fields are then cross-checked against the date.PROLEPTIC_MONTH- If present, then it is split into theYEARandMONTH_OF_YEAR. If the mode is strict or smart then the field is validated.YEAR_OF_ERAandERA- If both are present, then they are combined to form aYEAR. In lenient mode, theYEAR_OF_ERArange is not validated, in smart and strict mode it is. TheERAis validated for range in all three modes. If only theYEAR_OF_ERAis present, and the mode is smart or lenient, then the last available era is assumed. In strict mode, no era is assumed and theYEAR_OF_ERAis left untouched. If only theERAis present, then it is left untouched.YEAR,MONTH_OF_YEARandDAY_OF_MONTH- If all three are present, then they are combined to form a date. In all three modes, theYEARis validated. If the mode is smart or strict, then the month and day are validated. If the mode is lenient, then the date is combined in a manner equivalent to creating a date on the first day of the first month in the requested year, then adding the difference in months, then the difference in days. If the mode is smart, and the day-of-month is greater than the maximum for the year-month, then the day-of-month is adjusted to the last day-of-month. If the mode is strict, then the three fields must form a valid date.YEARandDAY_OF_YEAR- If both are present, then they are combined to form a date. In all three modes, theYEARis validated. If the mode is lenient, then the date is combined in a manner equivalent to creating a date on the first day of the requested year, then adding the difference in days. If the mode is smart or strict, then the two fields must form a valid date.YEAR,MONTH_OF_YEAR,ALIGNED_WEEK_OF_MONTHandALIGNED_DAY_OF_WEEK_IN_MONTH- If all four are present, then they are combined to form a date. In all three modes, theYEARis validated. If the mode is lenient, then the date is combined in a manner equivalent to creating a date on the first day of the first month in the requested year, then adding the difference in months, then the difference in weeks, then in days. If the mode is smart or strict, then the all four fields are validated to their outer ranges. The date is then combined in a manner equivalent to creating a date on the first day of the requested year and month, then adding the amount in weeks and days to reach their values. If the mode is strict, the date is additionally validated to check that the day and week adjustment did not change the month.YEAR,MONTH_OF_YEAR,ALIGNED_WEEK_OF_MONTHandDAY_OF_WEEK- If all four are present, then they are combined to form a date. The approach is the same as described above for years, months and weeks inALIGNED_DAY_OF_WEEK_IN_MONTH. The day-of-week is adjusted as the next or same matching day-of-week once the years, months and weeks have been handled.YEAR,ALIGNED_WEEK_OF_YEARandALIGNED_DAY_OF_WEEK_IN_YEAR- If all three are present, then they are combined to form a date. In all three modes, theYEARis validated. If the mode is lenient, then the date is combined in a manner equivalent to creating a date on the first day of the requested year, then adding the difference in weeks, then in days. If the mode is smart or strict, then the all three fields are validated to their outer ranges. The date is then combined in a manner equivalent to creating a date on the first day of the requested year, then adding the amount in weeks and days to reach their values. If the mode is strict, the date is additionally validated to check that the day and week adjustment did not change the year.YEAR,ALIGNED_WEEK_OF_YEARandDAY_OF_WEEK- If all three are present, then they are combined to form a date. The approach is the same as described above for years and weeks inALIGNED_DAY_OF_WEEK_IN_YEAR. The day-of-week is adjusted as the next or same matching day-of-week once the years and weeks have been handled.
The default implementation is suitable for most calendar systems.
If ChronoField.YEAR_OF_ERA is found without an ChronoField.ERA
then the last era in Chronology.eras() is used.
The implementation assumes a 7 day week, that the first day-of-month
has the value 1, that first day-of-year has the value 1, and that the
first of the month and year always exists.
| Parameters | |
|---|---|
fieldValues |
Map: the map of fields to values, which can be updated, not null |
resolverStyle |
ResolverStyle: the requested type of resolve, not null |
| Returns | |
|---|---|
MinguoDate |
the resolved date, null if insufficient information to create a date |
zonedDateTime
public ChronoZonedDateTime<MinguoDate> zonedDateTime (TemporalAccessor temporal)
| Parameters | |
|---|---|
temporal |
TemporalAccessor |
| Returns | |
|---|---|
ChronoZonedDateTime<MinguoDate> |
|
zonedDateTime
public ChronoZonedDateTime<MinguoDate> zonedDateTime (Instant instant, ZoneId zone)
| Parameters | |
|---|---|
instant |
Instant |
zone |
ZoneId |
| Returns | |
|---|---|
ChronoZonedDateTime<MinguoDate> |
|