JapaneseChrono (ThreeTen backport 0.7.2 API)

java.lang.Object
- org.threeten.bp.temporal.Chrono<JapaneseChrono>
- - org.threeten.bp.calendar.JapaneseChrono

All Implemented Interfaces:

Serializable, Comparable<Chrono<?>>
```
public final class JapaneseChrono
extends Chrono<JapaneseChrono>
implements Serializable
```
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.
Only Meiji (1865-04-07 - 1868-09-07) and later eras are supported. Older eras are handled as an unknown era where the year-of-era is the ISO year.
Specification for implementors
This class is immutable and thread-safe.

See Also:
Serialized Form

Field Summary

Fields
Modifier and Type	Field and Description
`static Era<JapaneseChrono>`	`ERA_HEISEI` The singleton instance for the Heisei era (1989-01-08 - current) which has the value 2.
`static Era<JapaneseChrono>`	`ERA_MEIJI` The singleton instance for the Meiji era (1868-09-08 - 1912-07-29) which has the value -1.
`static Era<JapaneseChrono>`	`ERA_SEIREKI` The singleton instance for the before Meiji era ( - 1868-09-07) which has the value -999.
`static Era<JapaneseChrono>`	`ERA_SHOWA` The singleton instance for the Showa era (1926-12-25 - 1989-01-07) which has the value 1.
`static Era<JapaneseChrono>`	`ERA_TAISHO` The singleton instance for the Taisho era (1912-07-30 - 1926-12-24) which has the value 0.
`static JapaneseChrono`	`INSTANCE` Singleton instance for Japanese chronology.

Method Summary

Methods
Modifier and Type	Method and Description
`ChronoLocalDate<JapaneseChrono>`	`date(Era<JapaneseChrono> era, int yearOfEra, int month, int dayOfMonth)` Obtains a local date in this chronology from the era, year-of-era, month-of-year and day-of-month fields.
`ChronoLocalDate<JapaneseChrono>`	`date(int prolepticYear, int month, int dayOfMonth)` Obtains a local date in this chronology from the proleptic-year, month-of-year and day-of-month fields.
`ChronoLocalDate<JapaneseChrono>`	`date(TemporalAccessor temporal)` Obtains a local date in this chronology from another temporal object.
`ChronoLocalDate<JapaneseChrono>`	`dateYearDay(int prolepticYear, int dayOfYear)` Obtains a local date in this chronology from the proleptic-year and day-of-year fields.
`Era<JapaneseChrono>`	`eraOf(int eraValue)` Returns the calendar system era object from the given numeric value.
`List<Era<JapaneseChrono>>`	`eras()` Gets the list of eras for the chronology.
`String`	`getCalendarType()` Gets the calendar type of the underlying calendar system - 'japanese'.
`String`	`getId()` Gets the ID of the chronology - 'Japanese'.
`boolean`	`isLeapYear(long prolepticYear)` Checks if the specified year is a leap year.
`int`	`prolepticYear(Era<JapaneseChrono> era, int yearOfEra)` Calculates the proleptic-year given the era and year-of-era.
`ValueRange`	`range(ChronoField field)` Gets the range of valid values for the specified field.

Methods inherited from class org.threeten.bp.temporal.Chrono
compareTo, dateNow, dateNow, dateNow, dateTime, dateYearDay, ensureChronoLocalDate, ensureChronoLocalDateTime, ensureChronoZonedDateTime, equals, from, getAvailableChronologies, getText, hashCode, localDateTime, of, ofLocale, toString, zonedDateTime, zonedDateTime

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Field Detail
  - INSTANCE
```
public static final JapaneseChrono INSTANCE
```
    Singleton instance for Japanese chronology.
  - ERA_SEIREKI
```
public static final Era<JapaneseChrono> ERA_SEIREKI
```
    The singleton instance for the before Meiji era ( - 1868-09-07) which has the value -999.
  - ERA_MEIJI
```
public static final Era<JapaneseChrono> ERA_MEIJI
```
    The singleton instance for the Meiji era (1868-09-08 - 1912-07-29) which has the value -1.
  - ERA_TAISHO
```
public static final Era<JapaneseChrono> ERA_TAISHO
```
    The singleton instance for the Taisho era (1912-07-30 - 1926-12-24) which has the value 0.
  - ERA_SHOWA
```
public static final Era<JapaneseChrono> ERA_SHOWA
```
    The singleton instance for the Showa era (1926-12-25 - 1989-01-07) which has the value 1.
  - ERA_HEISEI
```
public static final Era<JapaneseChrono> ERA_HEISEI
```
    The singleton instance for the Heisei era (1989-01-08 - current) which has the value 2.
- Method Detail
  - getId
```
public String getId()
```
    Gets the ID of the chronology - 'Japanese'.
    The ID uniquely identifies the Chrono. It can be used to lookup the Chrono using Chrono.of(String).
    
    Specified by:
    
    getId in class Chrono<JapaneseChrono>
    
    Returns:
    the chronology ID - 'Japanese'
    See Also:
    getCalendarType()
  - getCalendarType
```
public String 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 Chrono using Chrono.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 class Chrono<JapaneseChrono>
    
    Returns:
    the calendar system type - 'japanese'
    See Also:
    getId()
  - date
```
public ChronoLocalDate<JapaneseChrono> date(Era<JapaneseChrono> era,
                                   int yearOfEra,
                                   int month,
                                   int dayOfMonth)
```
    Description copied from class: Chrono
    
    Obtains a local date in this chronology from the era, year-of-era, month-of-year and day-of-month fields.
    
    Overrides:
    
    date in class Chrono<JapaneseChrono>
    
    Parameters:
    era - the era of the correct type for the chronology, not null
    yearOfEra - the chronology year-of-era
    month - the chronology month-of-year
    dayOfMonth - the chronology day-of-month
    
    Returns:
    the local date in this chronology, not null
  - date
```
public ChronoLocalDate<JapaneseChrono> date(int prolepticYear,
                                   int month,
                                   int dayOfMonth)
```
    Description copied from class: Chrono
    
    Obtains a local date in this chronology from the proleptic-year, month-of-year and day-of-month fields.
    
    Specified by:
    
    date in class Chrono<JapaneseChrono>
    
    Parameters:
    prolepticYear - the chronology proleptic-year
    month - the chronology month-of-year
    dayOfMonth - the chronology day-of-month
    
    Returns:
    the local date in this chronology, not null
  - dateYearDay
```
public ChronoLocalDate<JapaneseChrono> dateYearDay(int prolepticYear,
                                          int dayOfYear)
```
    Description copied from class: Chrono
    
    Obtains a local date in this chronology from the proleptic-year and day-of-year fields.
    
    Specified by:
    
    dateYearDay in class Chrono<JapaneseChrono>
    
    Parameters:
    prolepticYear - the chronology proleptic-year
    dayOfYear - the chronology day-of-year
    
    Returns:
    the local date in this chronology, not null
  - date
```
public ChronoLocalDate<JapaneseChrono> date(TemporalAccessor temporal)
```
    Description copied from class: Chrono
    
    Obtains a local date in this chronology from another temporal object.
    This creates a date in this chronology based on the specified TemporalAccessor.
    The standard mechanism for conversion between date types is the local epoch-day field.
    
    Specified by:
    
    date in class Chrono<JapaneseChrono>
    
    Parameters:
    temporal - the temporal object to convert, not null
    
    Returns:
    the local date in this chronology, not null
  - isLeapYear
```
public boolean isLeapYear(long prolepticYear)
```
    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.
    
    Specified by:
    
    isLeapYear in class Chrono<JapaneseChrono>
    
    Parameters:
    prolepticYear - the proleptic-year to check, not validated for range
    
    Returns:
    true if the year is a leap year
  - prolepticYear
```
public int prolepticYear(Era<JapaneseChrono> era,
                int yearOfEra)
```
    Description copied from class: Chrono
    
    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.
    
    Specified by:
    
    prolepticYear in class Chrono<JapaneseChrono>
    
    Parameters:
    era - the era of the correct type for the chronology, not null
    yearOfEra - the chronology year-of-era
    
    Returns:
    the proleptic-year
  - eraOf
```
public Era<JapaneseChrono> eraOf(int eraValue)
```
    Returns the calendar system era object from the given numeric value. See the description of each Era for the numeric values of: ERA_HEISEI, ERA_SHOWA,ERA_TAISHO, ERA_MEIJI), only Meiji and later eras are supported. Prior to Meiji ERA_SEIREKI is used.
    
    Specified by:
    
    eraOf in class Chrono<JapaneseChrono>
    
    Parameters:
    eraValue - the era value
    
    Returns:
    the Japanese Era for the given numeric era value
    
    Throws:
    
    DateTimeException - if eraValue is invalid
  - eras
```
public List<Era<JapaneseChrono>> eras()
```
    Description copied from class: Chrono
    
    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.
    
    Specified by:
    
    eras in class Chrono<JapaneseChrono>
    
    Returns:
    the list of eras for the chronology, may be immutable, not null
  - range
```
public ValueRange range(ChronoField field)
```
    Description copied from class: Chrono
    
    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.
    
    Specified by:
    
    range in class Chrono<JapaneseChrono>
    
    Parameters:
    field - the field to get the range for, not null
    
    Returns:
    the range of valid values for the field, not null

Class JapaneseChrono

Specification for implementors

Field Summary

Method Summary

Methods inherited from class org.threeten.bp.temporal.Chrono

Methods inherited from class java.lang.Object

Field Detail

INSTANCE

ERA_SEIREKI

ERA_MEIJI

ERA_TAISHO

ERA_SHOWA

ERA_HEISEI

Method Detail

getId

getCalendarType

date

date

dateYearDay

date

isLeapYear

prolepticYear

eraOf

eras

range