CopticDate (ThreeTen-Extra 1.0 API)

java.lang.Object
- org.threeten.extra.chrono.CopticDate

All Implemented Interfaces:

Serializable, Comparable<ChronoLocalDate>, ChronoLocalDate, Temporal, TemporalAccessor, TemporalAdjuster
```
public final class CopticDate
extends Object
implements ChronoLocalDate, Serializable
```
A date in the Coptic calendar system.
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).
Implementation Requirements
This class is immutable and thread-safe.
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 ==.

See Also:

Serialized Form

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`ChronoLocalDateTime<CopticDate>`	`atTime(LocalTime localTime)`
`boolean`	`equals(Object obj)` Compares this date to another date, including the chronology.
`static CopticDate`	`from(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(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, TemporalUnit unit)`
`CopticDate`	`minus(TemporalAmount amount)`
`static CopticDate`	`now()` Obtains the current `CopticDate` from the system clock in the default time-zone.
`static CopticDate`	`now(Clock clock)` Obtains the current `CopticDate` from the specified clock.
`static CopticDate`	`now(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, TemporalUnit unit)`
`CopticDate`	`plus(TemporalAmount amount)`
`ValueRange`	`range(TemporalField field)`
`long`	`toEpochDay()`
`String`	`toString()`
`ChronoPeriod`	`until(ChronoLocalDate endDateExclusive)`
`long`	`until(Temporal endExclusive, TemporalUnit unit)`
`CopticDate`	`with(TemporalAdjuster adjuster)`
`CopticDate`	`with(TemporalField field, long newValue)`

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

Methods inherited from interface java.time.chrono.ChronoLocalDate
adjustInto, compareTo, equals, format, hashCode, isAfter, isBefore, isEqual, isLeapYear, isSupported, isSupported, lengthOfMonth, lengthOfYear, query, timeLineOrder, toEpochDay, toString

Methods inherited from interface java.time.temporal.TemporalAccessor
get, getLong, range

- Method Detail
  - now
```
public static CopticDate now()
```
    Obtains the current 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.
    
    Returns:
    
    the current date using the system clock and default time-zone, not null
  - now
```
public static CopticDate now(ZoneId zone)
```
    Obtains the current 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.
    
    Parameters:
    
    zone - the zone ID to use, not null
    
    Returns:
    
    the current date using the system clock, not null
  - now
```
public static CopticDate now(Clock clock)
```
    Obtains the current 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.
    
    Parameters:
    
    clock - the clock to use, not null
    
    Returns:
    
    the current date, not null
    
    Throws:
    
    DateTimeException - if the current date cannot be obtained
  - of
```
public 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.
    This returns a CopticDate with the specified fields. The day must be valid for the year and month, otherwise an exception will be thrown.
    
    Parameters:
    
    prolepticYear - the Coptic proleptic-year
    
    month - the Coptic month-of-year, from 1 to 13
    
    dayOfMonth - the Coptic day-of-month, from 1 to 30
    
    Returns:
    
    the date in Coptic calendar system, not null
    
    Throws:
    
    DateTimeException - if the value of any field is out of range, or if the day-of-month is invalid for the month-year
  - from
```
public static CopticDate from(TemporalAccessor temporal)
```
    Obtains a 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.
    
    Specified by:
    
    from in interface ChronoLocalDate
    
    Parameters:
    
    temporal - the temporal object to convert, not null
    
    Returns:
    
    the date in Coptic calendar system, not null
    
    Throws:
    
    DateTimeException - if unable to convert to a CopticDate
  - getChronology
```
public CopticChronology getChronology()
```
    Gets the chronology of this date, which is the Coptic calendar system.
    The Chronology represents the calendar system in use. The era and other fields in ChronoField are defined by the chronology.
    
    Specified by:
    
    getChronology in interface ChronoLocalDate
    
    Returns:
    
    the Coptic chronology, not null
  - getEra
```
public CopticEra getEra()
```
    Gets the era applicable at this date.
    The Coptic calendar system has two eras, 'AM' and 'BEFORE_AM', defined by CopticEra.
    
    Specified by:
    
    getEra in interface ChronoLocalDate
    
    Returns:
    
    the era applicable at this date, not null
  - with
```
public CopticDate with(TemporalAdjuster adjuster)
```
    Specified by:
    
    with in interface ChronoLocalDate
    
    Specified by:
    
    with in interface Temporal
  - with
```
public CopticDate with(TemporalField field,
                       long newValue)
```
    Specified by:
    
    with in interface ChronoLocalDate
    
    Specified by:
    
    with in interface Temporal
  - plus
```
public CopticDate plus(TemporalAmount amount)
```
    Specified by:
    
    plus in interface ChronoLocalDate
    
    Specified by:
    
    plus in interface Temporal
  - plus
```
public CopticDate plus(long amountToAdd,
                       TemporalUnit unit)
```
    Specified by:
    
    plus in interface ChronoLocalDate
    
    Specified by:
    
    plus in interface Temporal
  - minus
```
public CopticDate minus(TemporalAmount amount)
```
    Specified by:
    
    minus in interface ChronoLocalDate
    
    Specified by:
    
    minus in interface Temporal
  - minus
```
public CopticDate minus(long amountToSubtract,
                        TemporalUnit unit)
```
    Specified by:
    
    minus in interface ChronoLocalDate
    
    Specified by:
    
    minus in interface Temporal
  - atTime
```
public ChronoLocalDateTime<CopticDate> atTime(LocalTime localTime)
```
    Specified by:
    
    atTime in interface ChronoLocalDate
  - until
```
public long until(Temporal endExclusive,
                  TemporalUnit unit)
```
    Specified by:
    
    until in interface ChronoLocalDate
    
    Specified by:
    
    until in interface Temporal
  - until
```
public ChronoPeriod until(ChronoLocalDate endDateExclusive)
```
    Specified by:
    
    until in interface ChronoLocalDate
  - lengthOfMonth
```
public int lengthOfMonth()
```
    Returns the length of the month represented by this date.
    This returns the length of the month in days. Months 1 to 12 have 30 days. Month 13 has 5 or 6 days.
    
    Returns:
    
    the length of the month in days, from 5 to 30
  - toEpochDay
```
public long toEpochDay()
```
  - range
```
public ValueRange range(TemporalField field)
```
    Specified by:
    
    range in interface TemporalAccessor
  - getLong
```
public long getLong(TemporalField field)
```
    Specified by:
    
    getLong in interface TemporalAccessor
  - equals
```
public boolean equals(Object obj)
```
    Compares this date to another date, including the chronology.
    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.
    
    Specified by:
    
    equals in interface ChronoLocalDate
    
    Overrides:
    
    equals in class Object
    
    Parameters:
    
    obj - the object to check, null returns false
    
    Returns:
    
    true if this is equal to the other date
  - hashCode
```
public int hashCode()
```
    A hash code for this date.
    
    Specified by:
    
    hashCode in interface ChronoLocalDate
    
    Overrides:
    
    hashCode in class Object
    
    Returns:
    
    a suitable hash code based only on the Chronology and the date
  - toString
```
public String toString()
```
    Specified by:
    
    toString in interface ChronoLocalDate
    
    Overrides:
    
    toString in class Object

Class CopticDate

Implementation Requirements

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface java.time.chrono.ChronoLocalDate

Methods inherited from interface java.time.temporal.TemporalAccessor

Method Detail

now

now

now

of

from

getChronology

getEra

with

with

plus

plus

minus

minus

atTime

until

until

lengthOfMonth

toEpochDay

range

getLong

equals

hashCode

toString