Serializable, Comparable<ChronoLocalDate>, ChronoLocalDate, Temporal, TemporalAccessor, TemporalAdjusterpublic final class InternationalFixedDate extends Object implements ChronoLocalDate, Serializable
Implements a pure International Fixed calendar (also known as the Cotsworth plan, the Eastman plan, the 13 Month calendar or the Equal Month calendar) a solar calendar proposal for calendar reform designed by Moses B. Cotsworth, who presented it in 1902.
It provides for a year of 13 months of 28 days each. Month 6 has 29 days in a leap year, but the additional day is not part of any week. Month 12 always has 29 days, but the additional day is not part of any week. It is therefore a perennial calendar, with every date fixed always on the same weekday. Though it was never officially adopted in any country, it was the official calendar of the Eastman Kodak Company from 1928 to 1989.
This date operates using the International fixed calendar.
This calendar system is a proposed reform calendar system, and is not in common use.
The International fixed differs from the Gregorian in terms of month count and length, and the leap year rule.
Dates are aligned such that 0001/01/01 (International fixed) is 0001-01-01 (ISO).
More information is available in the International Fixed Calendar Wikipedia article.
This class must be treated as a value type. Do not synchronize, rely on the identity hash code or use the distinction between equals() and ==.
| Modifier and Type | Method | Description |
|---|---|---|
ChronoLocalDateTime<InternationalFixedDate> |
atTime(LocalTime localTime) |
|
boolean |
equals(Object obj) |
Compares this date to another date, including the chronology.
|
static InternationalFixedDate |
from(TemporalAccessor temporal) |
Obtains a
InternationalFixedDate from a temporal object. |
InternationalFixedChronology |
getChronology() |
Gets the chronology of this date, which is the International fixed calendar system.
|
InternationalFixedEra |
getEra() |
Gets the era applicable at this date.
|
long |
getLong(TemporalField field) |
|
int |
hashCode() |
A hash code for this date.
|
int |
lengthOfMonth() |
Returns the length of the month represented by this date.
|
int |
lengthOfYear() |
Returns the length of the year represented by this date.
|
InternationalFixedDate |
minus(long amountToSubtract,
TemporalUnit unit) |
|
InternationalFixedDate |
minus(TemporalAmount amount) |
|
static InternationalFixedDate |
now() |
Obtains the current
InternationalFixedDate from the system clock in the default time-zone. |
static InternationalFixedDate |
now(Clock clock) |
Obtains the current
InternationalFixedDate from the specified clock. |
static InternationalFixedDate |
now(ZoneId zone) |
Obtains the current
InternationalFixedDate from the system clock in the specified time-zone. |
static InternationalFixedDate |
of(int prolepticYear,
int month,
int dayOfMonth) |
Obtains a
InternationalFixedDate representing a date in the International fixed calendar
system from the proleptic-year, month-of-year and day-of-month fields. |
InternationalFixedDate |
plus(long amountToAdd,
TemporalUnit unit) |
|
InternationalFixedDate |
plus(TemporalAmount amount) |
|
ValueRange |
range(TemporalField field) |
|
long |
toEpochDay() |
|
String |
toString() |
Display the date in human-readable format.
|
ChronoPeriod |
until(ChronoLocalDate endDateExclusive) |
|
long |
until(Temporal endExclusive,
TemporalUnit unit) |
|
InternationalFixedDate |
with(TemporalAdjuster adjuster) |
|
InternationalFixedDate |
with(TemporalField field,
long newValue) |
adjustInto, compareTo, equals, format, hashCode, isAfter, isBefore, isEqual, isLeapYear, isSupported, isSupported, query, timeLineOrderclone, finalize, getClass, notify, notifyAll, wait, wait, waitget, getLongpublic static InternationalFixedDate now()
InternationalFixedDate 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.
public static InternationalFixedDate now(ZoneId zone)
InternationalFixedDate 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.
zone - the zone ID to use, not nullpublic static InternationalFixedDate now(Clock clock)
InternationalFixedDate 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.
clock - the clock to use, not nullDateTimeException - if the current date cannot be obtainedpublic static InternationalFixedDate of(int prolepticYear, int month, int dayOfMonth)
InternationalFixedDate representing a date in the International fixed calendar
system from the proleptic-year, month-of-year and day-of-month fields.
This returns a InternationalFixedDate with the specified fields.
The day must be valid for the year and month, otherwise an exception will be thrown.
prolepticYear - the International fixed proleptic-yearmonth - the International fixed month-of-year, from 1 to 13dayOfMonth - the International fixed day-of-month, from 1 to 28 (29 for Leap Day or Year Day)DateTimeException - if the value of any field is out of range,
or if the day-of-month is invalid for the month-yearpublic static InternationalFixedDate from(TemporalAccessor temporal)
InternationalFixedDate from a temporal object.
This obtains a date in the International fixed calendar system based on the specified temporal.
A TemporalAccessor represents an arbitrary set of date and time information,
which this factory converts to an instance of InternationalFixedDate.
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, InternationalFixedDate::from.
temporal - the temporal object to convert, not nullDateTimeException - if unable to convert to a InternationalFixedDatepublic ValueRange range(TemporalField field)
range in interface TemporalAccessorpublic InternationalFixedChronology getChronology()
The Chronology represents the calendar system in use.
The era and other fields in ChronoField are defined by the chronology.
getChronology in interface ChronoLocalDatepublic InternationalFixedEra getEra()
The International fixed calendar system only has one era, 'CE',
defined by InternationalFixedEra.
getEra in interface ChronoLocalDatepublic int lengthOfMonth()
This returns the length of the month in days. Month lengths do not match those of the ISO calendar system.
Months have 28 days, except June which has 29 in leap years and December (month 13) which always has 29 days.
lengthOfMonth in interface ChronoLocalDatepublic int lengthOfYear()
This returns the length of the year in days. Year lengths match those of the ISO calendar system.
lengthOfYear in interface ChronoLocalDatepublic InternationalFixedDate with(TemporalAdjuster adjuster)
with in interface ChronoLocalDatewith in interface Temporalpublic InternationalFixedDate with(TemporalField field, long newValue)
with in interface ChronoLocalDatewith in interface Temporalpublic InternationalFixedDate plus(TemporalAmount amount)
plus in interface ChronoLocalDateplus in interface Temporalpublic InternationalFixedDate plus(long amountToAdd, TemporalUnit unit)
plus in interface ChronoLocalDateplus in interface Temporalpublic InternationalFixedDate minus(TemporalAmount amount)
minus in interface ChronoLocalDateminus in interface Temporalpublic InternationalFixedDate minus(long amountToSubtract, TemporalUnit unit)
minus in interface ChronoLocalDateminus in interface Temporalpublic ChronoLocalDateTime<InternationalFixedDate> atTime(LocalTime localTime)
atTime in interface ChronoLocalDatepublic long until(Temporal endExclusive, TemporalUnit unit)
until in interface ChronoLocalDateuntil in interface Temporalpublic ChronoPeriod until(ChronoLocalDate endDateExclusive)
until in interface ChronoLocalDatepublic long toEpochDay()
toEpochDay in interface ChronoLocalDatepublic String toString()
toString in interface ChronoLocalDatepublic long getLong(TemporalField field)
getLong in interface TemporalAccessorpublic boolean equals(Object obj)
Compares this date with another ensuring that the date is the same.
Only objects of this concrete type are compared, other types return false.
To compare the dates of two TemporalAccessor instances, including dates
in two different chronologies, use ChronoField.EPOCH_DAY as a comparator.
equals in interface ChronoLocalDateequals in class Objectobj - the object to check, null returns falsepublic int hashCode()
hashCode in interface ChronoLocalDatehashCode in class ObjectCopyright © 2010–2019 ThreeTen.org. All rights reserved.