MinguoChronology (Java Platform SE 8 0)

java.lang.Object
- java.time.chrono.Chronology
- - java.time.chrono.MinguoChronology

All Implemented Interfaces:

Serializable, Comparable<Chronology>
```
public final class MinguoChronology
extends Chronology
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.
Specification for implementors
This class is immutable and thread-safe.
Since:

1.8

See Also:
Serialized Form

Field Summary

Fields
Modifier and Type	Field and Description
`static Era`	`ERA_BEFORE_ROC` The singleton instance for the era BEFORE_ROC.
`static Era`	`ERA_ROC` The singleton instance for the era ROC.
`static MinguoChronology`	`INSTANCE` Singleton instance for the Minguo chronology.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`MinguoDate`	`date(Era 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.
`MinguoDate`	`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.
`MinguoDate`	`date(TemporalAccessor temporal)` Obtains a local date in this chronology from another temporal object.
`MinguoDate`	`dateNow()` Obtains the current local date in this chronology from the system clock in the default time-zone.
`MinguoDate`	`dateNow(Clock clock)` Obtains the current local date in this chronology from the specified clock.
`MinguoDate`	`dateNow(ZoneId zone)` Obtains the current local date in this chronology from the system clock in the specified time-zone.
`MinguoDate`	`dateYearDay(Era era, int yearOfEra, int dayOfYear)` Obtains a local date in this chronology from the era, year-of-era and day-of-year fields.
`MinguoDate`	`dateYearDay(int prolepticYear, int dayOfYear)` Obtains a local date in this chronology from the proleptic-year and day-of-year fields.
`Era`	`eraOf(int eraValue)` Creates the chronology era object from the numeric value.
`List<Era>`	`eras()` Gets the list of eras for the chronology.
`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)` Obtains a local date-time in this chronology from another temporal object.
`int`	`prolepticYear(Era 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.
`ChronoZonedDateTime<MinguoDate>`	`zonedDateTime(Instant instant, ZoneId zone)` Obtains a `ChronoZonedDateTime` in this chronology from an `Instant`.
`ChronoZonedDateTime<MinguoDate>`	`zonedDateTime(TemporalAccessor temporal)` Obtains a `ChronoZonedDateTime` in this chronology from another temporal object.

Methods inherited from class java.time.chrono.Chronology
compareTo, equals, from, getAvailableChronologies, getDisplayName, hashCode, of, ofLocale, toString

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

- Field Detail
  - INSTANCE
```
public static final MinguoChronology INSTANCE
```
    Singleton instance for the Minguo chronology.
  - ERA_ROC
```
public static final Era ERA_ROC
```
    The singleton instance for the era ROC.
  - ERA_BEFORE_ROC
```
public static final Era ERA_BEFORE_ROC
```
    The singleton instance for the era BEFORE_ROC.
- 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 class Chronology
    
    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 class Chronology
    
    Returns:
    the calendar system type - 'roc'
    See Also:
    getId()
  - date
```
public MinguoDate date(int prolepticYear,
              int month,
              int dayOfMonth)
```
    Description copied from class: Chronology
    
    Obtains a local date in this chronology from the proleptic-year, month-of-year and day-of-month fields.
    
    Specified by:
    
    date in class Chronology
    
    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 MinguoDate dateYearDay(int prolepticYear,
                     int dayOfYear)
```
    Description copied from class: Chronology
    
    Obtains a local date in this chronology from the proleptic-year and day-of-year fields.
    
    Specified by:
    
    dateYearDay in class Chronology
    
    Parameters:
    prolepticYear - the chronology proleptic-year
    dayOfYear - the chronology day-of-year
    
    Returns:
    the local date in this chronology, not null
  - date
```
public MinguoDate date(TemporalAccessor temporal)
```
    Description copied from class: Chronology
    
    Obtains a local date in this chronology from another temporal object.
    This creates 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.
    
    Specified by:
    
    date in class Chronology
    
    Parameters:
    temporal - the temporal object to convert, not null
    
    Returns:
    the local date in this chronology, not null
  - date
```
public MinguoDate date(Era era,
              int yearOfEra,
              int month,
              int dayOfMonth)
```
    Description copied from class: Chronology
    
    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 Chronology
    
    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
  - dateYearDay
```
public MinguoDate dateYearDay(Era era,
                     int yearOfEra,
                     int dayOfYear)
```
    Description copied from class: Chronology
    
    Obtains a local date in this chronology from the era, year-of-era and day-of-year fields.
    
    Overrides:
    
    dateYearDay in class Chronology
    
    Parameters:
    era - the era of the correct type for the chronology, not null
    yearOfEra - the chronology year-of-era
    dayOfYear - the chronology day-of-year
    
    Returns:
    the local date in this chronology, not null
  - dateNow
```
public MinguoDate dateNow()
```
    Description copied from class: Chronology
    
    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.
    This implementation uses Chronology.dateNow(Clock).
    
    Overrides:
    
    dateNow in class Chronology
    
    Returns:
    the current local date using the system clock and default time-zone, not null
  - dateNow
```
public MinguoDate dateNow(ZoneId zone)
```
    Description copied from class: Chronology
    
    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.
    
    Overrides:
    
    dateNow in class Chronology
    
    Parameters:
    zone - the zone ID to use, not null
    
    Returns:
    the current local date using the system clock, not null
  - dateNow
```
public MinguoDate dateNow(Clock clock)
```
    Description copied from class: Chronology
    
    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.
    
    Overrides:
    
    dateNow in class Chronology
    
    Parameters:
    clock - the clock to use, not null
    
    Returns:
    the current local date, not null
  - localDateTime
```
public ChronoLocalDateTime<MinguoDate> localDateTime(TemporalAccessor temporal)
```
    Description copied from class: Chronology
    
    Obtains a local date-time in this chronology from another temporal object.
    This creates 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.
    
    Overrides:
    
    localDateTime in class Chronology
    
    Parameters:
    temporal - the temporal object to convert, not null
    
    Returns:
    the local date-time in this chronology, not null
  - zonedDateTime
```
public ChronoZonedDateTime<MinguoDate> zonedDateTime(TemporalAccessor temporal)
```
    Description copied from class: Chronology
    
    Obtains a ChronoZonedDateTime in this chronology from another temporal object.
    This creates 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.
    
    Overrides:
    
    zonedDateTime in class Chronology
    
    Parameters:
    temporal - the temporal object to convert, not null
    
    Returns:
    the zoned date-time in this chronology, not null
  - zonedDateTime
```
public ChronoZonedDateTime<MinguoDate> zonedDateTime(Instant instant,
                                            ZoneId zone)
```
    Description copied from class: Chronology
    
    Obtains a ChronoZonedDateTime in this chronology from an Instant.
    This creates a zoned date-time with the same instant as that specified.
    
    Overrides:
    
    zonedDateTime in class Chronology
    
    Parameters:
    instant - the instant to create the date-time from, not null
    zone - the time-zone, not null
    
    Returns:
    the zoned date-time, not null
  - 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 class Chronology
    
    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 era,
                int yearOfEra)
```
    Description copied from class: Chronology
    
    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 Chronology
    
    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 eraOf(int eraValue)
```
    Description copied from class: Chronology
    
    Creates the chronology era object from the numeric value.
    The era is, conceptually, the largest division of the time-line. Most calendar systems have a single epoch dividing the time-line into two eras. However, some have multiple eras, such as one for the reign of each leader. The exact meaning is determined by the chronology according to the following constraints.
    The era in use at 1970-01-01 must have the value 1. Later eras must have sequentially higher values. Earlier eras must have sequentially lower values. Each chronology must refer to an enum or similar singleton to provide the era values.
    This method returns the singleton era of the correct type for the specified era value.
    
    Specified by:
    
    eraOf in class Chronology
    
    Parameters:
    eraValue - the era value
    
    Returns:
    the calendar system era, not null
  - eras
```
public List<Era> eras()
```
    Description copied from class: Chronology
    
    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 Chronology
    
    Returns:
    the list of eras for the chronology, may be immutable, not null
  - range
```
public ValueRange range(ChronoField field)
```
    Description copied from class: Chronology
    
    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 Chronology
    
    Parameters:
    field - the field to get the range for, not null
    
    Returns:
    the range of valid values for the field, not null

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DRAFT internal-0

Class MinguoChronology

Specification for implementors

Field Summary

Method Summary

Methods inherited from class java.time.chrono.Chronology

Methods inherited from class java.lang.Object

Field Detail

INSTANCE

ERA_ROC

ERA_BEFORE_ROC

Method Detail

getId

getCalendarType

date

dateYearDay

date

date

dateYearDay

dateNow

dateNow

dateNow

localDateTime

zonedDateTime

zonedDateTime

isLeapYear

prolepticYear

eraOf

eras

range