jdk.time.chrono.JapaneseChronology — clojure-interop/java.time 1.0.4

The Japanese Imperial calendar system.

This chronology defines the rules of the Japanese Imperial calendar system. This calendar system is primarily used in Japan. The Japanese Imperial calendar system is the same as the ISO calendar system apart from the era-based year numbering.

Japan introduced the Gregorian calendar starting with Meiji 6. Only Meiji and later eras are supported; dates before Meiji 6, January 1 are not supported.

The supported ChronoField instances are:

DAY_OF_WEEK DAY_OF_MONTH DAY_OF_YEAR EPOCH_DAY MONTH_OF_YEAR PROLEPTIC_MONTH YEAR_OF_ERA YEAR ERA

*-instance clj

Static Constant.

Singleton instance for Japanese chronology.

type: java.time.chrono.JapaneseChronology

date clj

(date this temporal)

(date this proleptic-year month day-of-month)

(date this era year-of-era month day-of-month)

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

era - the Japanese era, not null - java.time.chrono.Era year-of-era - the year-of-era - int month - the month-of-year - int day-of-month - the day-of-month - int

returns: the Japanese local date, not null - java.time.chrono.JapaneseDate

throws: java.time.DateTimeException - if unable to create the date

date-epoch-day clj

(date-epoch-day this epoch-day)

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

epoch-day - the epoch day - long

returns: the Japanese local date, not null - java.time.chrono.JapaneseDate

throws: java.time.DateTimeException - if unable to create the date

date-now clj

(date-now this)

(date-now this zone)

Description copied from interface: Chronology

zone - the zone ID to use, not null - java.time.ZoneId

returns: the current local date using the system clock, not null - java.time.chrono.JapaneseDate

date-year-day clj

(date-year-day this proleptic-year day-of-year)

(date-year-day this era year-of-era day-of-year)

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

era - the Japanese era, not null - java.time.chrono.Era year-of-era - the year-of-era - int day-of-year - the day-of-year - int

returns: the Japanese local date, not null - java.time.chrono.JapaneseDate

throws: java.time.DateTimeException - if unable to create the date

era-of clj

(era-of this era-value)

Returns the calendar system era object from the given numeric value.

See the description of each Era for the numeric values of: JapaneseEra.HEISEI, JapaneseEra.SHOWA,JapaneseEra.TAISHO, JapaneseEra.MEIJI), only Meiji and later eras are supported.

era-value - the era value - int

returns: the Japanese Era for the given numeric era value - java.time.chrono.JapaneseEra

throws: java.time.DateTimeException - if eraValue is invalid

eras clj

(eras this)

Description copied from interface: Chronology

returns: the list of eras for the chronology, may be immutable, not null - java.util.List<java.time.chrono.Era>

get-calendar-type clj

(get-calendar-type this)

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: the calendar system type - 'japanese' - java.lang.String

get-id clj

(get-id this)

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: the chronology ID - 'Japanese' - java.lang.String

leap-year? clj

(leap-year? this proleptic-year)

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.

proleptic-year - the proleptic-year to check, not validated for range - long

returns: true if the year is a leap year - boolean

local-date-time clj

(local-date-time this temporal)

Description copied from interface: Chronology

temporal - the temporal object to convert, not null - java.time.temporal.TemporalAccessor

returns: the local date-time in this chronology, not null - java.time.chrono.ChronoLocalDateTime<java.time.chrono.JapaneseDate>

proleptic-year clj

(proleptic-year this era year-of-era)

Description copied from interface: Chronology

era - the era of the correct type for the chronology, not null - java.time.chrono.Era year-of-era - the chronology year-of-era - int

returns: the proleptic-year - int

range clj

(range this field)

Description copied from interface: Chronology

field - the field to get the range for, not null - java.time.temporal.ChronoField

returns: the range of valid values for the field, not null - java.time.temporal.ValueRange

resolve-date clj

(resolve-date this field-values resolver-style)

Description copied from class: AbstractChronology

field-values - the map of fields to values, which can be updated, not null - java.util.Map resolver-style - the requested type of resolve, not null - java.time.format.ResolverStyle

returns: the resolved date, null if insufficient information to create a date - java.time.chrono.JapaneseDate

zoned-date-time clj

(zoned-date-time this temporal)

(zoned-date-time this instant zone)

Description copied from interface: Chronology

instant - the instant to create the date-time from, not null - java.time.Instant zone - the time-zone, not null - java.time.ZoneId

returns: the zoned date-time, not null - java.time.chrono.ChronoZonedDateTime<java.time.chrono.JapaneseDate>