Enum Class IsoEra
- All Implemented Interfaces:
Serializable,Comparable<IsoEra>,Constable,Era,TemporalAccessor,TemporalAdjuster
An era in the ISO calendar system.
The ISO-8601 standard does not define eras. A definition has therefore been created with two eras - 'Current era' (CE) for years on or after 0001-01-01 (ISO), and 'Before current era' (BCE) for years before that.
| year-of-era | era | proleptic-year |
|---|---|---|
| 2 | CE | 2 |
| 1 | CE | 1 |
| 1 | BCE | 0 |
| 2 | BCE | -1 |
Do not use ordinal() to obtain the numeric representation of IsoEra.
Use getValue() instead.
- Implementation Requirements:
- This is an immutable and thread-safe enum.
- Since:
- 1.8
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Nested Class Summary
Nested classes/interfaces declared in class java.lang.Enum
Enum.EnumDesc<E extends Enum<E>> -
Enum Constant Summary
Enum Constants -
Method Summary
Modifier and TypeMethodDescriptionintgetValue()Gets the numeric eraintvalue.static IsoEraof(int isoEra) Obtains an instance ofIsoErafrom anintvalue.static IsoEraReturns the enum constant of this class with the specified name.static IsoEra[]values()Returns an array containing the constants of this enum class, in the order they are declared.Methods declared in class java.lang.Enum
clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOfMethods declared in interface java.time.chrono.Era
adjustInto, get, getDisplayName, getLong, isSupported, query, range
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Enum Constant Details
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BCE
The singleton instance for the era before the current one, 'Before Current Era', which has the numeric value 0. -
CE
The singleton instance for the current era, 'Current Era', which has the numeric value 1.
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Method Details
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values
Returns an array containing the constants of this enum class, in the order they are declared.- Returns:
- an array containing the constants of this enum class, in the order they are declared
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valueOf
Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)- Parameters:
name- the name of the enum constant to be returned.- Returns:
- the enum constant with the specified name
- Throws:
IllegalArgumentException- if this enum class has no constant with the specified nameNullPointerException- if the argument is null
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of
Obtains an instance ofIsoErafrom anintvalue.IsoErais an enum representing the ISO eras of BCE/CE. This factory allows the enum to be obtained from theintvalue.- Parameters:
isoEra- the BCE/CE value to represent, from 0 (BCE) to 1 (CE)- Returns:
- the era singleton, not null
- Throws:
DateTimeException- if the value is invalid
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getValue
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