java.io.Serializable
, java.lang.Comparable<java.time.chrono.ChronoLocalDate>
, java.time.chrono.ChronoLocalDate
, java.time.temporal.Temporal
, java.time.temporal.TemporalAccessor
, java.time.temporal.TemporalAdjuster
public final class CopticDate
extends java.lang.Object
implements java.time.chrono.ChronoLocalDate, java.io.Serializable
This date operates using the Coptic calendar.
This calendar system is primarily used in Christian Egypt.
Dates are aligned such that 0001-01-01 (Coptic)
is 0284-08-29 (ISO)
.
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 |
---|---|---|
java.time.chrono.ChronoLocalDateTime<CopticDate> |
atTime(java.time.LocalTime localTime) |
|
boolean |
equals(java.lang.Object obj) |
Compares this date to another date, including the chronology.
|
static CopticDate |
from(java.time.temporal.TemporalAccessor temporal) |
Obtains a
CopticDate from a temporal object. |
CopticChronology |
getChronology() |
Gets the chronology of this date, which is the Coptic calendar system.
|
CopticEra |
getEra() |
Gets the era applicable at this date.
|
long |
getLong(java.time.temporal.TemporalField field) |
|
int |
hashCode() |
A hash code for this date.
|
int |
lengthOfMonth() |
Returns the length of the month represented by this date.
|
CopticDate |
minus(long amountToSubtract,
java.time.temporal.TemporalUnit unit) |
|
CopticDate |
minus(java.time.temporal.TemporalAmount amount) |
|
static CopticDate |
now() |
Obtains the current
CopticDate from the system clock in the default time-zone. |
static CopticDate |
now(java.time.Clock clock) |
Obtains the current
CopticDate from the specified clock. |
static CopticDate |
now(java.time.ZoneId zone) |
Obtains the current
CopticDate from the system clock in the specified time-zone. |
static CopticDate |
of(int prolepticYear,
int month,
int dayOfMonth) |
Obtains a
CopticDate representing a date in the Coptic calendar
system from the proleptic-year, month-of-year and day-of-month fields. |
CopticDate |
plus(long amountToAdd,
java.time.temporal.TemporalUnit unit) |
|
CopticDate |
plus(java.time.temporal.TemporalAmount amount) |
|
java.time.temporal.ValueRange |
range(java.time.temporal.TemporalField field) |
|
long |
toEpochDay() |
|
java.lang.String |
toString() |
|
java.time.chrono.ChronoPeriod |
until(java.time.chrono.ChronoLocalDate endDateExclusive) |
|
long |
until(java.time.temporal.Temporal endExclusive,
java.time.temporal.TemporalUnit unit) |
|
CopticDate |
with(java.time.temporal.TemporalAdjuster adjuster) |
|
CopticDate |
with(java.time.temporal.TemporalField field,
long newValue) |
adjustInto, compareTo, equals, format, hashCode, isAfter, isBefore, isEqual, isLeapYear, isSupported, isSupported, lengthOfMonth, lengthOfYear, query, toEpochDay, toString
public static CopticDate now()
CopticDate
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 CopticDate now(java.time.ZoneId zone)
CopticDate
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 CopticDate now(java.time.Clock clock)
CopticDate
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 nulljava.time.DateTimeException
- if the current date cannot be obtainedpublic static CopticDate of(int prolepticYear, int month, int dayOfMonth)
CopticDate
representing a date in the Coptic calendar
system from the proleptic-year, month-of-year and day-of-month fields.
This returns a CopticDate
with the specified fields.
The day must be valid for the year and month, otherwise an exception will be thrown.
prolepticYear
- the Coptic proleptic-yearmonth
- the Coptic month-of-year, from 1 to 13dayOfMonth
- the Coptic day-of-month, from 1 to 30java.time.DateTimeException
- if the value of any field is out of range,
or if the day-of-month is invalid for the month-yearpublic static CopticDate from(java.time.temporal.TemporalAccessor temporal)
CopticDate
from a temporal object.
This obtains a date in the Coptic 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 CopticDate
.
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, CopticDate::from
.
temporal
- the temporal object to convert, not nulljava.time.DateTimeException
- if unable to convert to a CopticDate
public CopticChronology getChronology()
The Chronology
represents the calendar system in use.
The era and other fields in ChronoField
are defined by the chronology.
getChronology
in interface java.time.chrono.ChronoLocalDate
public CopticEra getEra()
The Coptic calendar system has two eras, 'AM' and 'BEFORE_AM',
defined by CopticEra
.
getEra
in interface java.time.chrono.ChronoLocalDate
public CopticDate with(java.time.temporal.TemporalAdjuster adjuster)
with
in interface java.time.chrono.ChronoLocalDate
with
in interface java.time.temporal.Temporal
public CopticDate with(java.time.temporal.TemporalField field, long newValue)
with
in interface java.time.chrono.ChronoLocalDate
with
in interface java.time.temporal.Temporal
public CopticDate plus(java.time.temporal.TemporalAmount amount)
plus
in interface java.time.chrono.ChronoLocalDate
plus
in interface java.time.temporal.Temporal
public CopticDate plus(long amountToAdd, java.time.temporal.TemporalUnit unit)
plus
in interface java.time.chrono.ChronoLocalDate
plus
in interface java.time.temporal.Temporal
public CopticDate minus(java.time.temporal.TemporalAmount amount)
minus
in interface java.time.chrono.ChronoLocalDate
minus
in interface java.time.temporal.Temporal
public CopticDate minus(long amountToSubtract, java.time.temporal.TemporalUnit unit)
minus
in interface java.time.chrono.ChronoLocalDate
minus
in interface java.time.temporal.Temporal
public java.time.chrono.ChronoLocalDateTime<CopticDate> atTime(java.time.LocalTime localTime)
atTime
in interface java.time.chrono.ChronoLocalDate
public long until(java.time.temporal.Temporal endExclusive, java.time.temporal.TemporalUnit unit)
until
in interface java.time.chrono.ChronoLocalDate
until
in interface java.time.temporal.Temporal
public java.time.chrono.ChronoPeriod until(java.time.chrono.ChronoLocalDate endDateExclusive)
until
in interface java.time.chrono.ChronoLocalDate
public int lengthOfMonth()
This returns the length of the month in days. Months 1 to 12 have 30 days. Month 13 has 5 or 6 days.
public long toEpochDay()
public java.time.temporal.ValueRange range(java.time.temporal.TemporalField field)
range
in interface java.time.temporal.TemporalAccessor
public long getLong(java.time.temporal.TemporalField field)
getLong
in interface java.time.temporal.TemporalAccessor
public boolean equals(java.lang.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 java.time.chrono.ChronoLocalDate
equals
in class java.lang.Object
obj
- the object to check, null returns falsepublic int hashCode()
hashCode
in interface java.time.chrono.ChronoLocalDate
hashCode
in class java.lang.Object
public java.lang.String toString()
toString
in interface java.time.chrono.ChronoLocalDate
toString
in class java.lang.Object
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