OpenJDK 1.22 · java.time.chrono.JapaneseChronology · APIdia, the JavaDoc alternative

Modifier and Type	Field and Description
public static final JapaneseChronology	INSTANCE Singleton instance for Japanese chronology.
pack-priv static final LocalGregorianCalendar	JCAL
pack-priv static final Locale	LOCALE
private static final long	serialVersionUID Serialization version.

Access	Constructor and Description
private	JapaneseChronology() Restricted constructor.

Method Summary

Modifier and Type	Method and Description
public JapaneseDate	Returns: the Japanese local date, not null date(Era the Japanese era, not null era, int the year-of-era yearOfEra, int the month-of-year month, int the day-of-month dayOfMonth) Overrides default java.time.chrono.Chronology.date. Obtains a local date in Japanese calendar system from the era, year-of-era, month-of-year and day-of-month fields.
public JapaneseDate	Returns: the Japanese local date, not null date(int the proleptic-year prolepticYear, int the month-of-year month, int the day-of-month dayOfMonth) Implements java.time.chrono.Chronology.date. Obtains a local date in Japanese calendar system from the proleptic-year, month-of-year and day-of-month fields.
public JapaneseDate	date(TemporalAccessor the temporal object to convert, not null temporal) Implements java.time.chrono.Chronology.date. Obtains a local date in this chronology from another temporal object.
public JapaneseDate	Returns: the Japanese local date, not null dateEpochDay(long the epoch day epochDay) Implements java.time.chrono.Chronology.dateEpochDay. Obtains a local date in the Japanese calendar system from the epoch-day.
public JapaneseDate	dateNow() Overrides default java.time.chrono.Chronology.dateNow. Obtains the current local date in this chronology from the system clock in the default time-zone.
public JapaneseDate	dateNow(ZoneId the zone ID to use, not null zone) Overrides default java.time.chrono.Chronology.dateNow. Obtains the current local date in this chronology from the system clock in the specified time-zone.
public JapaneseDate	dateNow(Clock the clock to use, not null clock) Overrides default java.time.chrono.Chronology.dateNow. Obtains the current local date in this chronology from the specified clock.
public JapaneseDate	Returns: the Japanese local date, not null dateYearDay(Era the Japanese era, not null era, int the year-of-era yearOfEra, int the day-of-year dayOfYear) Overrides default java.time.chrono.Chronology.dateYearDay. Obtains a local date in Japanese calendar system from the era, year-of-era and day-of-year fields.
public JapaneseDate	Returns: the Japanese local date, not null dateYearDay(int the proleptic-year prolepticYear, int the day-of-year dayOfYear) Implements java.time.chrono.Chronology.dateYearDay. Obtains a local date in Japanese calendar system from the proleptic-year and day-of-year fields.
public JapaneseEra	Returns: the Japanese `Era` for the given numeric era value eraOf(int the era value eraValue) Implements java.time.chrono.Chronology.eraOf. Returns the calendar system era object from the given numeric value.
public List<Era>	eras() Implements java.time.chrono.Chronology.eras. Gets the list of eras for the chronology.
public String	Returns: the calendar system type - 'japanese' getCalendarType() Implements java.time.chrono.Chronology.getCalendarType. Gets the calendar type of the underlying calendar system - 'japanese'.
pack-priv JapaneseEra	getCurrentEra()
public String	Returns: the chronology ID - 'Japanese' getId() Implements java.time.chrono.Chronology.getId. Gets the ID of the chronology - 'Japanese'.
public boolean	Returns: `true` isIsoBased() Overrides default java.time.chrono.Chronology.isIsoBased. `JapaneseChronology` is an ISO based chronology, which supports fields in `IsoFields`, such as `DAY_OF_QUARTER` and `QUARTER_OF_YEAR`.
public boolean	Returns: true if the year is a leap year isLeapYear(long the proleptic-year to check, not validated for range prolepticYear) Implements java.time.chrono.Chronology.isLeapYear. Checks if the specified year is a leap year.
public ChronoLocalDateTime<JapaneseDate>	localDateTime(TemporalAccessor the temporal object to convert, not null temporal) Overrides default java.time.chrono.Chronology.localDateTime. Obtains a local date-time in this chronology from another temporal object.
public int	prolepticYear(Era the era of the correct type for the chronology, not null era, int the chronology year-of-era yearOfEra) Implements java.time.chrono.Chronology.prolepticYear. Calculates the proleptic-year given the era and year-of-era.
private int	prolepticYearLenient(JapaneseEra era, int yearOfEra)
public ValueRange	range(ChronoField the field to get the range for, not null field) Implements java.time.chrono.Chronology.range. Gets the range of valid values for the specified field.
private void	readObject(ObjectInputStream the stream to read s) Hides java.time.chrono.AbstractChronology.readObject. Defend against malicious streams.
public JapaneseDate	resolveDate(Map<TemporalField, Long> the map of fields to values, which can be updated, not null fieldValues, ResolverStyle the requested type of resolve, not null resolverStyle) Overrides java.time.chrono.AbstractChronology.resolveDate. Implements java.time.chrono.Chronology.resolveDate. Resolves parsed `ChronoField` values into a date during parsing.
private ChronoLocalDate	resolveYD(JapaneseEra era, int yoe, Map<TemporalField, Long> fieldValues, ResolverStyle resolverStyle)
pack-priv ChronoLocalDate	resolveYearOfEra(Map<TemporalField, Long> fieldValues, ResolverStyle resolverStyle) Overrides java.time.chrono.AbstractChronology.resolveYearOfEra.
private ChronoLocalDate	resolveYMD(JapaneseEra era, int yoe, Map<TemporalField, Long> fieldValues, ResolverStyle resolverStyle)
pack-priv Object	Returns: the instance of `Ser`, not null writeReplace() Overrides java.time.chrono.AbstractChronology.writeReplace. Writes the Chronology using a dedicated serialized form.
public ChronoZonedDateTime<JapaneseDate>	zonedDateTime(TemporalAccessor the temporal object to convert, not null temporal) Overrides default java.time.chrono.Chronology.zonedDateTime. Obtains a `ChronoZonedDateTime` in this chronology from another temporal object.
public ChronoZonedDateTime<JapaneseDate>	zonedDateTime(Instant the instant to create the date-time from, not null instant, ZoneId the time-zone, not null zone) Overrides default java.time.chrono.Chronology.zonedDateTime. Obtains a `ChronoZonedDateTime` in this chronology from an `Instant`.

INSTANCE	back to summary
public static final JapaneseChronology INSTANCE Singleton instance for Japanese chronology.

JCAL	back to summary
pack-priv static final LocalGregorianCalendar JCAL

LOCALE	back to summary
pack-priv static final Locale LOCALE

serialVersionUID	back to summary
private static final long serialVersionUID Serialization version. Annotations @Serial

JapaneseChronology	back to summary
private JapaneseChronology() Restricted constructor.

Method Detail

date back to summary

date	back to summary
public JapaneseDate date(Era era, int yearOfEra, int month, int dayOfMonth) Overrides default java.time.chrono.Chronology.date. Obtains a local date in Japanese calendar system from the era, year-of-era, month-of-year and day-of-month fields. The Japanese month and day-of-month are the same as those in the ISO calendar system. They are not reset when the era changes. For example: 6th Jan Showa 64 = ISO 1989-01-06 7th Jan Showa 64 = ISO 1989-01-07 8th Jan Heisei 1 = ISO 1989-01-08 9th Jan Heisei 1 = ISO 1989-01-09 Parameters era:Era the Japanese era, not null yearOfEra:int the year-of-era month:int the month-of-year dayOfMonth:int the day-of-month Returns:JapaneseDate the Japanese local date, not null Annotations @Override Exceptions DateTimeException: if unable to create the date ClassCastException: if the `era` is not a `JapaneseEra`

public JapaneseDate date(Era era, int yearOfEra, int month, int dayOfMonth)

Overrides default java.time.chrono.Chronology.date.

Obtains a local date in Japanese calendar system from the era, year-of-era, month-of-year and day-of-month fields.

The Japanese month and day-of-month are the same as those in the ISO calendar system. They are not reset when the era changes. For example:

 6th Jan Showa 64 = ISO 1989-01-06
 7th Jan Showa 64 = ISO 1989-01-07
 8th Jan Heisei 1 = ISO 1989-01-08
 9th Jan Heisei 1 = ISO 1989-01-09

Parameters

era:Era: the Japanese era, not null
yearOfEra:int: the year-of-era
month:int: the month-of-year
dayOfMonth:int: the day-of-month

Returns:JapaneseDate

the Japanese local date, not null

Annotations

@Override

Exceptions

DateTimeException:: if unable to create the date
ClassCastException:: if the era is not a JapaneseEra

date	back to summary
public JapaneseDate date(int prolepticYear, int month, int dayOfMonth) Implements java.time.chrono.Chronology.date. Obtains a local date in Japanese calendar system from the proleptic-year, month-of-year and day-of-month fields. The Japanese proleptic year, month and day-of-month are the same as those in the ISO calendar system. They are not reset when the era changes. Parameters prolepticYear:int the proleptic-year month:int the month-of-year dayOfMonth:int the day-of-month Returns:JapaneseDate the Japanese local date, not null Annotations @Override Exceptions DateTimeException: if unable to create the date

date

back to summary

public JapaneseDate date(int prolepticYear, int month, int dayOfMonth)

Implements java.time.chrono.Chronology.date.

Obtains a local date in Japanese calendar system from the proleptic-year, month-of-year and day-of-month fields.

The Japanese proleptic year, month and day-of-month are the same as those in the ISO calendar system. They are not reset when the era changes.

Parameters

prolepticYear:int: the proleptic-year
month:int: the month-of-year
dayOfMonth:int: the day-of-month

Returns:JapaneseDate

the Japanese local date, not null

Annotations

@Override

Exceptions

DateTimeException:: if unable to create the date

date back to summary

date	back to summary
public JapaneseDate date(TemporalAccessor temporal) Implements java.time.chrono.Chronology.date. Doc from java.time.chrono.Chronology.date. Obtains a local date in this chronology from another temporal object. This obtains a date in this chronology based on the specified temporal. A `TemporalAccessor` represents an arbitrary set of date and time information, which this factory converts to an instance of `ChronoLocalDate`. The conversion typically uses the `EPOCH_DAY` field, which is standardized across calendar systems. This method matches the signature of the functional interface `TemporalQuery` allowing it to be used as a query via method reference, `aChronology::date`. Parameters temporal:TemporalAccessor the temporal object to convert, not null Returns:JapaneseDate the local date in this chronology, not null Annotations @Override

public JapaneseDate date(TemporalAccessor temporal)

Implements java.time.chrono.Chronology.date.

Doc from java.time.chrono.Chronology.date.

Obtains a local date in this chronology from another temporal object.

This obtains a date in this chronology based on the specified temporal. A TemporalAccessor represents an arbitrary set of date and time information, which this factory converts to an instance of ChronoLocalDate.

The conversion typically uses the EPOCH_DAY field, which is standardized across calendar systems.

This method matches the signature of the functional interface TemporalQuery allowing it to be used as a query via method reference, aChronology::date.

Parameters

temporal:TemporalAccessor: the temporal object to convert, not null

Returns:JapaneseDate

the local date in this chronology, not null

Annotations

@Override

dateEpochDay	back to summary
public JapaneseDate dateEpochDay(long epochDay) Implements java.time.chrono.Chronology.dateEpochDay. Obtains a local date in the Japanese calendar system from the epoch-day. Parameters epochDay:long the epoch day Returns:JapaneseDate the Japanese local date, not null Annotations @Override Exceptions DateTimeException: if unable to create the date

dateEpochDay

back to summary

public JapaneseDate dateEpochDay(long epochDay)

Implements java.time.chrono.Chronology.dateEpochDay.

Obtains a local date in the Japanese calendar system from the epoch-day.

Parameters

epochDay:long: the epoch day

Returns:JapaneseDate

the Japanese local date, not null

Annotations

@Override

Exceptions

DateTimeException:: if unable to create the date

dateNow back to summary

dateNow	back to summary
public JapaneseDate dateNow() Overrides default java.time.chrono.Chronology.dateNow. Doc from java.time.chrono.Chronology.dateNow. Obtains the current local date in this chronology from the system clock in the default time-zone. This will query the `system clock` in the default time-zone to obtain the current date. Using this method will prevent the ability to use an alternate clock for testing because the clock is hard-coded. Returns:JapaneseDate the current local date using the system clock and default time-zone, not null Annotations @Override

public JapaneseDate dateNow()

Overrides default java.time.chrono.Chronology.dateNow.

Doc from java.time.chrono.Chronology.dateNow.

Obtains the current local date in this chronology from the system clock in the default time-zone.

This will query the system clock in the default time-zone to obtain the current date.

Using this method will prevent the ability to use an alternate clock for testing because the clock is hard-coded.

Returns:JapaneseDate

the current local date using the system clock and default time-zone, not null

Annotations

@Override

dateNow back to summary

dateNow	back to summary
public JapaneseDate dateNow(ZoneId zone) Overrides default java.time.chrono.Chronology.dateNow. Doc from java.time.chrono.Chronology.dateNow. Obtains the current local date in this chronology from the system clock in the specified time-zone. This will query the `system clock` to obtain the current date. Specifying the time-zone avoids dependence on the default time-zone. Using this method will prevent the ability to use an alternate clock for testing because the clock is hard-coded. Parameters zone:ZoneId the zone ID to use, not null Returns:JapaneseDate the current local date using the system clock, not null Annotations @Override

public JapaneseDate dateNow(ZoneId zone)

Overrides default java.time.chrono.Chronology.dateNow.

Doc from java.time.chrono.Chronology.dateNow.

Obtains the current local date in this chronology from the system clock in the specified time-zone.

This will query the system clock to obtain the current date. Specifying the time-zone avoids dependence on the default time-zone.

Using this method will prevent the ability to use an alternate clock for testing because the clock is hard-coded.

Parameters

zone:ZoneId: the zone ID to use, not null

Returns:JapaneseDate

the current local date using the system clock, not null

Annotations

@Override

dateNow back to summary

dateNow	back to summary
public JapaneseDate dateNow(Clock clock) Overrides default java.time.chrono.Chronology.dateNow. Doc from java.time.chrono.Chronology.dateNow. Obtains the current local date in this chronology from the specified clock. This will query the specified clock to obtain the current date - today. Using this method allows the use of an alternate clock for testing. The alternate clock may be introduced using `dependency injection`. Parameters clock:Clock the clock to use, not null Returns:JapaneseDate the current local date, not null Annotations @Override

public JapaneseDate dateNow(Clock clock)

Overrides default java.time.chrono.Chronology.dateNow.

Doc from java.time.chrono.Chronology.dateNow.

Obtains the current local date in this chronology from the specified clock.

This will query the specified clock to obtain the current date - today. Using this method allows the use of an alternate clock for testing. The alternate clock may be introduced using dependency injection.

Parameters

clock:Clock: the clock to use, not null

Returns:JapaneseDate

the current local date, not null

Annotations

@Override

dateYearDay back to summary

dateYearDay	back to summary
public JapaneseDate dateYearDay(Era era, int yearOfEra, int dayOfYear) Overrides default java.time.chrono.Chronology.dateYearDay. Obtains a local date in Japanese calendar system from the era, year-of-era and day-of-year fields. The day-of-year in this factory is expressed relative to the start of the year-of-era. This definition changes the normal meaning of day-of-year only in those years where the year-of-era is reset to one due to a change in the era. For example: 6th Jan Showa 64 = day-of-year 6 7th Jan Showa 64 = day-of-year 7 8th Jan Heisei 1 = day-of-year 1 9th Jan Heisei 1 = day-of-year 2 Parameters era:Era the Japanese era, not null yearOfEra:int the year-of-era dayOfYear:int the day-of-year Returns:JapaneseDate the Japanese local date, not null Annotations @Override Exceptions DateTimeException: if unable to create the date ClassCastException: if the `era` is not a `JapaneseEra`

public JapaneseDate dateYearDay(Era era, int yearOfEra, int dayOfYear)

Overrides default java.time.chrono.Chronology.dateYearDay.

Obtains a local date in Japanese calendar system from the era, year-of-era and day-of-year fields.

The day-of-year in this factory is expressed relative to the start of the year-of-era. This definition changes the normal meaning of day-of-year only in those years where the year-of-era is reset to one due to a change in the era. For example:

 6th Jan Showa 64 = day-of-year 6
 7th Jan Showa 64 = day-of-year 7
 8th Jan Heisei 1 = day-of-year 1
 9th Jan Heisei 1 = day-of-year 2

Parameters

era:Era: the Japanese era, not null
yearOfEra:int: the year-of-era
dayOfYear:int: the day-of-year

Returns:JapaneseDate

the Japanese local date, not null

Annotations

@Override

Exceptions

DateTimeException:: if unable to create the date
ClassCastException:: if the era is not a JapaneseEra

dateYearDay	back to summary
public JapaneseDate dateYearDay(int prolepticYear, int dayOfYear) Implements java.time.chrono.Chronology.dateYearDay. Obtains a local date in Japanese calendar system from the proleptic-year and day-of-year fields. The day-of-year in this factory is expressed relative to the start of the proleptic year. The Japanese proleptic year and day-of-year are the same as those in the ISO calendar system. They are not reset when the era changes. Parameters prolepticYear:int the proleptic-year dayOfYear:int the day-of-year Returns:JapaneseDate the Japanese local date, not null Annotations @Override Exceptions DateTimeException: if unable to create the date

dateYearDay

back to summary

public JapaneseDate dateYearDay(int prolepticYear, int dayOfYear)

Implements java.time.chrono.Chronology.dateYearDay.

Obtains a local date in Japanese calendar system from the proleptic-year and day-of-year fields.

The day-of-year in this factory is expressed relative to the start of the proleptic year. The Japanese proleptic year and day-of-year are the same as those in the ISO calendar system. They are not reset when the era changes.

Parameters

prolepticYear:int: the proleptic-year
dayOfYear:int: the day-of-year

Returns:JapaneseDate

the Japanese local date, not null

Annotations

@Override

Exceptions

DateTimeException:: if unable to create the date

eraOf back to summary

eraOf	back to summary
public JapaneseEra eraOf(int eraValue) Implements java.time.chrono.Chronology.eraOf. Returns the calendar system era object from the given numeric value. The numeric values supported by this method are the same as the numeric values supported by `JapaneseEra#of(int)`. Parameters eraValue:int the era value Returns:JapaneseEra the Japanese `Era` for the given numeric era value Annotations @Override Exceptions DateTimeException: if `eraValue` is invalid

public JapaneseEra eraOf(int eraValue)

Implements java.time.chrono.Chronology.eraOf.

Returns the calendar system era object from the given numeric value. The numeric values supported by this method are the same as the numeric values supported by JapaneseEra#of(int).

Parameters

eraValue:int: the era value

Returns:JapaneseEra

the Japanese Era for the given numeric era value

Annotations

@Override

Exceptions

DateTimeException:: if eraValue is invalid

eras	back to summary
public List<Era> eras() Implements java.time.chrono.Chronology.eras. Doc from java.time.chrono.Chronology.eras. Gets the list of eras for the chronology. Most calendar systems have an era, within which the year has meaning. If the calendar system does not support the concept of eras, an empty list must be returned. Returns:List<Era> the list of eras for the chronology, may be immutable, not null Annotations @Override

eras

back to summary

public List<Era> eras()

Implements java.time.chrono.Chronology.eras.

Doc from java.time.chrono.Chronology.eras.

Gets the list of eras for the chronology.

Most calendar systems have an era, within which the year has meaning. If the calendar system does not support the concept of eras, an empty list must be returned.

Returns:List<Era>

the list of eras for the chronology, may be immutable, not null

Annotations

@Override

getCalendarType back to summary

getCalendarType	back to summary
public String getCalendarType() Implements java.time.chrono.Chronology.getCalendarType. Gets the calendar type of the underlying calendar system - 'japanese'. 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 - 'japanese' Annotations @Override See Also `getId()`

public String getCalendarType()

Implements java.time.chrono.Chronology.getCalendarType.

Gets the calendar type of the underlying calendar system - 'japanese'.

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 - 'japanese'

Annotations

@Override

See Also

getId()

getCurrentEra	back to summary
pack-priv JapaneseEra getCurrentEra()

getId back to summary

getId	back to summary
public String getId() Implements java.time.chrono.Chronology.getId. Gets the ID of the chronology - 'Japanese'. The ID uniquely identifies the `Chronology`. It can be used to lookup the `Chronology` using `Chronology#of(String)`. Returns:String the chronology ID - 'Japanese' Annotations @Override See Also `getCalendarType()`

public String getId()

Implements java.time.chrono.Chronology.getId.

Gets the ID of the chronology - 'Japanese'.

The ID uniquely identifies the Chronology. It can be used to lookup the Chronology using Chronology#of(String).

Returns:String

the chronology ID - 'Japanese'

Annotations

@Override

See Also

getCalendarType()

isIsoBased back to summary

isIsoBased	back to summary
public boolean isIsoBased() Overrides default java.time.chrono.Chronology.isIsoBased. `JapaneseChronology` is an ISO based chronology, which supports fields in `IsoFields`, such as `DAY_OF_QUARTER` and `QUARTER_OF_YEAR`. Returns:boolean `true` Annotations @Override Since 19 See Also `IsoFields`

public boolean isIsoBased()

Overrides default java.time.chrono.Chronology.isIsoBased.

JapaneseChronology is an ISO based chronology, which supports fields in IsoFields, such as DAY_OF_QUARTER and QUARTER_OF_YEAR.

Returns:boolean

true

Annotations

@Override

Since

See Also

IsoFields

isLeapYear	back to summary
public boolean isLeapYear(long prolepticYear) Implements java.time.chrono.Chronology.isLeapYear. Checks if the specified year is a leap year. Japanese calendar 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 Annotations @Override

isLeapYear

back to summary

public boolean isLeapYear(long prolepticYear)

Implements java.time.chrono.Chronology.isLeapYear.

Checks if the specified year is a leap year.

Japanese calendar 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

Annotations

@Override

localDateTime back to summary

localDateTime	back to summary
public ChronoLocalDateTime<JapaneseDate> localDateTime(TemporalAccessor temporal) Overrides default java.time.chrono.Chronology.localDateTime. Doc from java.time.chrono.Chronology.localDateTime. Obtains a local date-time in this chronology from another temporal object. This obtains a date-time in this chronology based on the specified temporal. A `TemporalAccessor` represents an arbitrary set of date and time information, which this factory converts to an instance of `ChronoLocalDateTime`. The conversion extracts and combines the `ChronoLocalDate` and the `LocalTime` from the temporal object. Implementations are permitted to perform optimizations such as accessing those fields that are equivalent to the relevant objects. The result uses this chronology. This method matches the signature of the functional interface `TemporalQuery` allowing it to be used as a query via method reference, `aChronology::localDateTime`. Parameters temporal:TemporalAccessor the temporal object to convert, not null Returns:ChronoLocalDateTime<JapaneseDate> the local date-time in this chronology, not null Annotations @Override @SuppressWarnings:unchecked

public ChronoLocalDateTime<JapaneseDate> localDateTime(TemporalAccessor temporal)

Overrides default java.time.chrono.Chronology.localDateTime.

Doc from java.time.chrono.Chronology.localDateTime.

Obtains a local date-time in this chronology from another temporal object.

This obtains a date-time in this chronology based on the specified temporal. A TemporalAccessor represents an arbitrary set of date and time information, which this factory converts to an instance of ChronoLocalDateTime.

The conversion extracts and combines the ChronoLocalDate and the LocalTime from the temporal object. Implementations are permitted to perform optimizations such as accessing those fields that are equivalent to the relevant objects. The result uses this chronology.

This method matches the signature of the functional interface TemporalQuery allowing it to be used as a query via method reference, aChronology::localDateTime.

Parameters

temporal:TemporalAccessor: the temporal object to convert, not null

Returns:ChronoLocalDateTime<JapaneseDate>

the local date-time in this chronology, not null

Annotations

@Override
@SuppressWarnings:unchecked

prolepticYear back to summary

prolepticYear	back to summary
public int prolepticYear(Era era, int yearOfEra) Implements java.time.chrono.Chronology.prolepticYear. Doc from java.time.chrono.Chronology.prolepticYear. Calculates the proleptic-year given the era and year-of-era. This combines the era and year-of-era into the single proleptic-year field. If the chronology makes active use of eras, such as `JapaneseChronology` then the year-of-era will be validated against the era. For other chronologies, validation is optional. Parameters era:Era the era of the correct type for the chronology, not null yearOfEra:int the chronology year-of-era Returns:int the proleptic-year Annotations @Override

public int prolepticYear(Era era, int yearOfEra)

Implements java.time.chrono.Chronology.prolepticYear.

Doc from java.time.chrono.Chronology.prolepticYear.

Calculates the proleptic-year given the era and year-of-era.

This combines the era and year-of-era into the single proleptic-year field.

If the chronology makes active use of eras, such as JapaneseChronology then the year-of-era will be validated against the era. For other chronologies, validation is optional.

Parameters

era:Era: the era of the correct type for the chronology, not null
yearOfEra:int: the chronology year-of-era

Returns:int

the proleptic-year

Annotations

@Override

prolepticYearLenient	back to summary
private int prolepticYearLenient(JapaneseEra era, int yearOfEra)

range back to summary

range	back to summary
public ValueRange range(ChronoField field) Implements java.time.chrono.Chronology.range. Doc from java.time.chrono.Chronology.range. Gets the range of valid values for the specified field. All fields can be expressed as a `long` integer. This method returns an object that describes the valid range for that value. Note that the result only describes the minimum and maximum valid values and it is important not to read too much into them. For example, there could be values within the range that are invalid for the field. This method will return a result whether or not the chronology supports the field. Parameters field:ChronoField the field to get the range for, not null Returns:ValueRange the range of valid values for the field, not null Annotations @Override

public ValueRange range(ChronoField field)

Implements java.time.chrono.Chronology.range.

Doc from java.time.chrono.Chronology.range.

Gets the range of valid values for the specified field.

All fields can be expressed as a long integer. This method returns an object that describes the valid range for that value.

Note that the result only describes the minimum and maximum valid values and it is important not to read too much into them. For example, there could be values within the range that are invalid for the field.

This method will return a result whether or not the chronology supports the field.

Parameters

field:ChronoField: the field to get the range for, not null

Returns:ValueRange

the range of valid values for the field, not null

Annotations

@Override

readObject	back to summary
private void readObject(ObjectInputStream s) throws InvalidObjectException Hides java.time.chrono.AbstractChronology.readObject. Defend against malicious streams. Parameters s:ObjectInputStream the stream to read Annotations @Serial Exceptions InvalidObjectException: always

readObject

back to summary

private void readObject(ObjectInputStream s) throws InvalidObjectException

Hides java.time.chrono.AbstractChronology.readObject.

Defend against malicious streams.

Parameters

s:ObjectInputStream: the stream to read

Annotations

@Serial

Exceptions

InvalidObjectException:: always

resolveDate back to summary

resolveDate	back to summary
public JapaneseDate resolveDate(Map<TemporalField, Long> fieldValues, ResolverStyle resolverStyle) Overrides java.time.chrono.AbstractChronology.resolveDate. Implements java.time.chrono.Chronology.resolveDate. Doc from java.time.chrono.AbstractChronology.resolveDate. 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 the `YEAR` and `MONTH_OF_YEAR`. If the mode is strict or smart then the field is validated. `YEAR_OF_ERA` and `ERA` - If both are present, then they are combined to form a `YEAR`. In lenient mode, the `YEAR_OF_ERA` range is not validated, in smart and strict mode it is. The `ERA` is validated for range in all three modes. If only the `YEAR_OF_ERA` is present, and the mode is smart or lenient, then the last available era is assumed. In strict mode, no era is assumed and the `YEAR_OF_ERA` is left untouched. If only the `ERA` is present, then it is left untouched. `YEAR`, `MONTH_OF_YEAR` and `DAY_OF_MONTH` - If all three are present, then they are combined to form a date. In all three modes, the `YEAR` is 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. `YEAR` and `DAY_OF_YEAR` - If both are present, then they are combined to form a date. In all three modes, the `YEAR` is 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_MONTH` and `ALIGNED_DAY_OF_WEEK_IN_MONTH` - If all four are present, then they are combined to form a date. In all three modes, the `YEAR` is 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_MONTH` and `DAY_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 in `ALIGNED_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_YEAR` and `ALIGNED_DAY_OF_WEEK_IN_YEAR` - If all three are present, then they are combined to form a date. In all three modes, the `YEAR` is 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_YEAR` and `DAY_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 in `ALIGNED_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 `java.time.temporal.ChronoField#YEAR_OF_ERA` is found without an `java.time.temporal.ChronoField#ERA` then the last era in `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<TemporalField, Long> the map of fields to values, which can be updated, not null resolverStyle:ResolverStyle the requested type of resolve, not null Returns:JapaneseDate the resolved date, null if insufficient information to create a date Annotations @Override

public JapaneseDate resolveDate(Map<TemporalField, Long> fieldValues, ResolverStyle resolverStyle)

Overrides java.time.chrono.AbstractChronology.resolveDate.

Implements java.time.chrono.Chronology.resolveDate.

Doc from java.time.chrono.AbstractChronology.resolveDate.

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 the YEAR and MONTH_OF_YEAR. If the mode is strict or smart then the field is validated.
YEAR_OF_ERA and ERA - If both are present, then they are combined to form a YEAR. In lenient mode, the YEAR_OF_ERA range is not validated, in smart and strict mode it is. The ERA is validated for range in all three modes. If only the YEAR_OF_ERA is present, and the mode is smart or lenient, then the last available era is assumed. In strict mode, no era is assumed and the YEAR_OF_ERA is left untouched. If only the ERA is present, then it is left untouched.
YEAR, MONTH_OF_YEAR and DAY_OF_MONTH - If all three are present, then they are combined to form a date. In all three modes, the YEAR is 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.
YEAR and DAY_OF_YEAR - If both are present, then they are combined to form a date. In all three modes, the YEAR is 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_MONTH and ALIGNED_DAY_OF_WEEK_IN_MONTH - If all four are present, then they are combined to form a date. In all three modes, the YEAR is 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_MONTH and DAY_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 in ALIGNED_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_YEAR and ALIGNED_DAY_OF_WEEK_IN_YEAR - If all three are present, then they are combined to form a date. In all three modes, the YEAR is 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_YEAR and DAY_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 in ALIGNED_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 java.time.temporal.ChronoField#YEAR_OF_ERA is found without an java.time.temporal.ChronoField#ERA then the last era in 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<TemporalField, Long>: the map of fields to values, which can be updated, not null
resolverStyle:ResolverStyle: the requested type of resolve, not null

Returns:JapaneseDate

the resolved date, null if insufficient information to create a date

Annotations

@Override

resolveYD	back to summary
private ChronoLocalDate resolveYD(JapaneseEra era, int yoe, Map<TemporalField, Long> fieldValues, ResolverStyle resolverStyle)

resolveYearOfEra	back to summary
pack-priv ChronoLocalDate resolveYearOfEra(Map<TemporalField, Long> fieldValues, ResolverStyle resolverStyle) Overrides java.time.chrono.AbstractChronology.resolveYearOfEra. Annotations @Override

resolveYearOfEra

back to summary

pack-priv ChronoLocalDate resolveYearOfEra(Map<TemporalField, Long> fieldValues, ResolverStyle resolverStyle)

Overrides java.time.chrono.AbstractChronology.resolveYearOfEra.

Annotations

@Override

resolveYMD	back to summary
private ChronoLocalDate resolveYMD(JapaneseEra era, int yoe, Map<TemporalField, Long> fieldValues, ResolverStyle resolverStyle)

writeReplace back to summary

writeReplace	back to summary
pack-priv Object writeReplace() Overrides java.time.chrono.AbstractChronology.writeReplace. Writes the Chronology using a dedicated serialized form. Returns:Object the instance of `Ser`, not null Annotations @Override @Serial Serial data out.writeByte(1); // identifies a Chronology out.writeUTF(getId());

pack-priv Object writeReplace()

Overrides java.time.chrono.AbstractChronology.writeReplace.

Writes the Chronology using a dedicated serialized form.

Returns:Object

the instance of Ser, not null

Annotations

@Override
@Serial

Serial data

 out.writeByte(1);     // identifies a Chronology
 out.writeUTF(getId());

zonedDateTime back to summary

zonedDateTime	back to summary
public ChronoZonedDateTime<JapaneseDate> zonedDateTime(TemporalAccessor temporal) Overrides default java.time.chrono.Chronology.zonedDateTime. Doc from java.time.chrono.Chronology.zonedDateTime. Obtains a `ChronoZonedDateTime` in this chronology from another temporal object. This obtains a zoned date-time in this chronology based on the specified temporal. A `TemporalAccessor` represents an arbitrary set of date and time information, which this factory converts to an instance of `ChronoZonedDateTime`. The conversion will first obtain a `ZoneId` from the temporal object, falling back to a `ZoneOffset` if necessary. It will then try to obtain an `Instant`, falling back to a `ChronoLocalDateTime` if necessary. The result will be either the combination of `ZoneId` or `ZoneOffset` with `Instant` or `ChronoLocalDateTime`. Implementations are permitted to perform optimizations such as accessing those fields that are equivalent to the relevant objects. The result uses this chronology. This method matches the signature of the functional interface `TemporalQuery` allowing it to be used as a query via method reference, `aChronology::zonedDateTime`. Parameters temporal:TemporalAccessor the temporal object to convert, not null Returns:ChronoZonedDateTime<JapaneseDate> the zoned date-time in this chronology, not null Annotations @Override @SuppressWarnings:unchecked

public ChronoZonedDateTime<JapaneseDate> zonedDateTime(TemporalAccessor temporal)

Overrides default java.time.chrono.Chronology.zonedDateTime.

Doc from java.time.chrono.Chronology.zonedDateTime.

Obtains a ChronoZonedDateTime in this chronology from another temporal object.

This obtains a zoned date-time in this chronology based on the specified temporal. A TemporalAccessor represents an arbitrary set of date and time information, which this factory converts to an instance of ChronoZonedDateTime.

The conversion will first obtain a ZoneId from the temporal object, falling back to a ZoneOffset if necessary. It will then try to obtain an Instant, falling back to a ChronoLocalDateTime if necessary. The result will be either the combination of ZoneId or ZoneOffset with Instant or ChronoLocalDateTime. Implementations are permitted to perform optimizations such as accessing those fields that are equivalent to the relevant objects. The result uses this chronology.

This method matches the signature of the functional interface TemporalQuery allowing it to be used as a query via method reference, aChronology::zonedDateTime.

Parameters

temporal:TemporalAccessor: the temporal object to convert, not null

Returns:ChronoZonedDateTime<JapaneseDate>

the zoned date-time in this chronology, not null

Annotations

@Override
@SuppressWarnings:unchecked

zonedDateTime back to summary

zonedDateTime	back to summary
public ChronoZonedDateTime<JapaneseDate> zonedDateTime(Instant instant, ZoneId zone) Overrides default java.time.chrono.Chronology.zonedDateTime. Doc from java.time.chrono.Chronology.zonedDateTime. Obtains a `ChronoZonedDateTime` in this chronology from an `Instant`. This obtains a zoned date-time with the same instant as that specified. Parameters instant:Instant the instant to create the date-time from, not null zone:ZoneId the time-zone, not null Returns:ChronoZonedDateTime<JapaneseDate> the zoned date-time, not null Annotations @Override @SuppressWarnings:unchecked