ChronoField (ThreeTen backport for java.time package 1.0.0 API)

java.lang.Object
- java.lang.Enum<ChronoField>
- - java.time.temporal.ChronoField

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<ChronoField>, TemporalField
```
public enum ChronoField
extends java.lang.Enum<ChronoField>
implements TemporalField
```
A standard set of fields.
This set of fields provide field-based access to manipulate a date, time or date-time. The standard set of fields can be extended by implementing TemporalField.
These fields are intended to be applicable in multiple calendar systems. For example, most non-ISO calendar systems define dates as a year, month and day, just with slightly different rules. The documentation of each field explains how it operates.
Specification for implementors
This is a final, immutable and thread-safe enum.

Enum Constant Summary

Enum Constants
Enum Constant and Description
`ALIGNED_DAY_OF_WEEK_IN_MONTH` The aligned day-of-week within a month.
`ALIGNED_DAY_OF_WEEK_IN_YEAR` The aligned day-of-week within a year.
`ALIGNED_WEEK_OF_MONTH` The aligned week within a month.
`ALIGNED_WEEK_OF_YEAR` The aligned week within a year.
`AMPM_OF_DAY` The am-pm-of-day.
`CLOCK_HOUR_OF_AMPM` The clock-hour-of-am-pm.
`CLOCK_HOUR_OF_DAY` The clock-hour-of-day.
`DAY_OF_MONTH` The day-of-month.
`DAY_OF_WEEK` The day-of-week, such as Tuesday.
`DAY_OF_YEAR` The day-of-year.
`EPOCH_DAY` The epoch-day, based on the Java epoch of 1970-01-01 (ISO).
`ERA` The era.
`HOUR_OF_AMPM` The hour-of-am-pm.
`HOUR_OF_DAY` The hour-of-day.
`INSTANT_SECONDS` The instant epoch-seconds.
`MICRO_OF_DAY` The micro-of-day.
`MICRO_OF_SECOND` The micro-of-second.
`MILLI_OF_DAY` The milli-of-day.
`MILLI_OF_SECOND` The milli-of-second.
`MINUTE_OF_DAY` The minute-of-day.
`MINUTE_OF_HOUR` The minute-of-hour.
`MONTH_OF_YEAR` The month-of-year, such as March.
`NANO_OF_DAY` The nano-of-day.
`NANO_OF_SECOND` The nano-of-second.
`OFFSET_SECONDS` The offset from UTC/Greenwich.
`PROLEPTIC_MONTH` The proleptic-month, which counts months sequentially from year 0.
`SECOND_OF_DAY` The second-of-day.
`SECOND_OF_MINUTE` The second-of-minute.
`YEAR` The proleptic year, such as 2012.
`YEAR_OF_ERA` The year within the era.

Method Summary

Methods
Modifier and Type	Method and Description
`<R extends Temporal> R`	`adjustInto(R temporal, long newValue)` Returns a copy of the specified temporal object with the value of this field set.
`int`	`checkValidIntValue(long value)` Checks that the specified value is valid and fits in an `int`.
`long`	`checkValidValue(long value)` Checks that the specified value is valid for this field.
`TemporalUnit`	`getBaseUnit()` Gets the unit that the field is measured in.
`java.lang.String`	`getDisplayName(java.util.Locale locale)` Gets the display name for the field in the requested locale.
`long`	`getFrom(TemporalAccessor temporal)` Gets the value of this field from the specified temporal object.
`TemporalUnit`	`getRangeUnit()` Gets the range that the field is bound by.
`boolean`	`isDateBased()` Checks if this field represents a component of a date.
`boolean`	`isSupportedBy(TemporalAccessor temporal)` Checks if this field is supported by the temporal object.
`boolean`	`isTimeBased()` Checks if this field represents a component of a time.
`ValueRange`	`range()` Gets the range of valid values for the field.
`ValueRange`	`rangeRefinedBy(TemporalAccessor temporal)` Get the range of valid values for this field using the temporal object to refine the result.
`TemporalAccessor`	`resolve(java.util.Map<TemporalField,java.lang.Long> fieldValues, TemporalAccessor partialTemporal, ResolverStyle resolverStyle)` Resolves the date/time information in the builder
`java.lang.String`	`toString()`
`static ChronoField`	`valueOf(java.lang.String name)` Returns the enum constant of this type with the specified name.
`static ChronoField[]`	`values()` Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, valueOf

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

- Enum Constant Detail
  - NANO_OF_SECOND
```
public static final ChronoField NANO_OF_SECOND
```
    The nano-of-second.
    This counts the nanosecond within the second, from 0 to 999,999,999. This field has the same meaning for all calendar systems.
    This field is used to represent the nano-of-second handling any fraction of the second. Implementations of TemporalAccessor should provide a value for this field if they can return a value for SECOND_OF_MINUTE, SECOND_OF_DAY or INSTANT_SECONDS filling unknown precision with zero.
    When this field is used for setting a value, it should set as much precision as the object stores, using integer division to remove excess precision. For example, if the TemporalAccessor stores time to millisecond precision, then the nano-of-second must be divided by 1,000,000 before replacing the milli-of-second.
  - NANO_OF_DAY
```
public static final ChronoField NANO_OF_DAY
```
    The nano-of-day.
    This counts the nanosecond within the day, from 0 to (24 * 60 * 60 * 1,000,000,000) - 1. This field has the same meaning for all calendar systems.
    This field is used to represent the nano-of-day handling any fraction of the second. Implementations of TemporalAccessor should provide a value for this field if they can return a value for SECOND_OF_DAY filling unknown precision with zero.
  - MICRO_OF_SECOND
```
public static final ChronoField MICRO_OF_SECOND
```
    The micro-of-second.
    This counts the microsecond within the second, from 0 to 999,999. This field has the same meaning for all calendar systems.
    This field is used to represent the micro-of-second handling any fraction of the second. Implementations of TemporalAccessor should provide a value for this field if they can return a value for SECOND_OF_MINUTE, SECOND_OF_DAY or INSTANT_SECONDS filling unknown precision with zero.
    When this field is used for setting a value, it should behave in the same way as setting NANO_OF_SECOND with the value multiplied by 1,000.
  - MICRO_OF_DAY
```
public static final ChronoField MICRO_OF_DAY
```
    The micro-of-day.
    This counts the microsecond within the day, from 0 to (24 * 60 * 60 * 1,000,000) - 1. This field has the same meaning for all calendar systems.
    This field is used to represent the micro-of-day handling any fraction of the second. Implementations of TemporalAccessor should provide a value for this field if they can return a value for SECOND_OF_DAY filling unknown precision with zero.
    When this field is used for setting a value, it should behave in the same way as setting NANO_OF_DAY with the value multiplied by 1,000.
  - MILLI_OF_SECOND
```
public static final ChronoField MILLI_OF_SECOND
```
    The milli-of-second.
    This counts the millisecond within the second, from 0 to 999. This field has the same meaning for all calendar systems.
    This field is used to represent the milli-of-second handling any fraction of the second. Implementations of TemporalAccessor should provide a value for this field if they can return a value for SECOND_OF_MINUTE, SECOND_OF_DAY or INSTANT_SECONDS filling unknown precision with zero.
    When this field is used for setting a value, it should behave in the same way as setting NANO_OF_SECOND with the value multiplied by 1,000,000.
  - MILLI_OF_DAY
```
public static final ChronoField MILLI_OF_DAY
```
    The milli-of-day.
    This counts the millisecond within the day, from 0 to (24 * 60 * 60 * 1,000) - 1. This field has the same meaning for all calendar systems.
    This field is used to represent the milli-of-day handling any fraction of the second. Implementations of TemporalAccessor should provide a value for this field if they can return a value for SECOND_OF_DAY filling unknown precision with zero.
    When this field is used for setting a value, it should behave in the same way as setting NANO_OF_DAY with the value multiplied by 1,000,000.
  - SECOND_OF_MINUTE
```
public static final ChronoField SECOND_OF_MINUTE
```
    The second-of-minute.
    This counts the second within the minute, from 0 to 59. This field has the same meaning for all calendar systems.
  - SECOND_OF_DAY
```
public static final ChronoField SECOND_OF_DAY
```
    The second-of-day.
    This counts the second within the day, from 0 to (24 * 60 * 60) - 1. This field has the same meaning for all calendar systems.
  - MINUTE_OF_HOUR
```
public static final ChronoField MINUTE_OF_HOUR
```
    The minute-of-hour.
    This counts the minute within the hour, from 0 to 59. This field has the same meaning for all calendar systems.
  - MINUTE_OF_DAY
```
public static final ChronoField MINUTE_OF_DAY
```
    The minute-of-day.
    This counts the minute within the day, from 0 to (24 * 60) - 1. This field has the same meaning for all calendar systems.
  - HOUR_OF_AMPM
```
public static final ChronoField HOUR_OF_AMPM
```
    The hour-of-am-pm.
    This counts the hour within the AM/PM, from 0 to 11. This is the hour that would be observed on a standard 12-hour digital clock. This field has the same meaning for all calendar systems.
  - CLOCK_HOUR_OF_AMPM
```
public static final ChronoField CLOCK_HOUR_OF_AMPM
```
    The clock-hour-of-am-pm.
    This counts the hour within the AM/PM, from 1 to 12. This is the hour that would be observed on a standard 12-hour analog wall clock. This field has the same meaning for all calendar systems.
  - HOUR_OF_DAY
```
public static final ChronoField HOUR_OF_DAY
```
    The hour-of-day.
    This counts the hour within the day, from 0 to 23. This is the hour that would be observed on a standard 24-hour digital clock. This field has the same meaning for all calendar systems.
  - CLOCK_HOUR_OF_DAY
```
public static final ChronoField CLOCK_HOUR_OF_DAY
```
    The clock-hour-of-day.
    This counts the hour within the AM/PM, from 1 to 24. This is the hour that would be observed on a 24-hour analog wall clock. This field has the same meaning for all calendar systems.
  - AMPM_OF_DAY
```
public static final ChronoField AMPM_OF_DAY
```
    The am-pm-of-day.
    This counts the AM/PM within the day, from 0 (AM) to 1 (PM). This field has the same meaning for all calendar systems.
  - DAY_OF_WEEK
```
public static final ChronoField DAY_OF_WEEK
```
    The day-of-week, such as Tuesday.
    This represents the standard concept of the day of the week. In the default ISO calendar system, this has values from Monday (1) to Sunday (7). The DayOfWeek class can be used to interpret the result.
    Most non-ISO calendar systems also define a seven day week that aligns with ISO. Those calendar systems must also use the same numbering system, from Monday (1) to Sunday (7), which allows DayOfWeek to be used.
    Calendar systems that do not have a standard seven day week should implement this field if they have a similar concept of named or numbered days within a period similar to a week. It is recommended that the numbering starts from 1.
  - ALIGNED_DAY_OF_WEEK_IN_MONTH
```
public static final ChronoField ALIGNED_DAY_OF_WEEK_IN_MONTH
```
    The aligned day-of-week within a month.
    This represents concept of the count of days within the period of a week where the weeks are aligned to the start of the month. This field is typically used with ALIGNED_WEEK_OF_MONTH.
    For example, in a calendar systems with a seven day week, the first aligned-week-of-month starts on day-of-month 1, the second aligned-week starts on day-of-month 8, and so on. Within each of these aligned-weeks, the days are numbered from 1 to 7 and returned as the value of this field. As such, day-of-month 1 to 7 will have aligned-day-of-week values from 1 to 7. And day-of-month 8 to 14 will repeat this with aligned-day-of-week values from 1 to 7.
    Calendar systems that do not have a seven day week should typically implement this field in the same way, but using the alternate week length.
  - ALIGNED_DAY_OF_WEEK_IN_YEAR
```
public static final ChronoField ALIGNED_DAY_OF_WEEK_IN_YEAR
```
    The aligned day-of-week within a year.
    This represents concept of the count of days within the period of a week where the weeks are aligned to the start of the year. This field is typically used with ALIGNED_WEEK_OF_YEAR.
    For example, in a calendar systems with a seven day week, the first aligned-week-of-year starts on day-of-year 1, the second aligned-week starts on day-of-year 8, and so on. Within each of these aligned-weeks, the days are numbered from 1 to 7 and returned as the value of this field. As such, day-of-year 1 to 7 will have aligned-day-of-week values from 1 to 7. And day-of-year 8 to 14 will repeat this with aligned-day-of-week values from 1 to 7.
    Calendar systems that do not have a seven day week should typically implement this field in the same way, but using the alternate week length.
  - DAY_OF_MONTH
```
public static final ChronoField DAY_OF_MONTH
```
    The day-of-month.
    This represents the concept of the day within the month. In the default ISO calendar system, this has values from 1 to 31 in most months. April, June, September, November have days from 1 to 30, while February has days from 1 to 28, or 29 in a leap year.
    Non-ISO calendar systems should implement this field using the most recognized day-of-month values for users of the calendar system. Normally, this is a count of days from 1 to the length of the month.
  - DAY_OF_YEAR
```
public static final ChronoField DAY_OF_YEAR
```
    The day-of-year.
    This represents the concept of the day within the year. In the default ISO calendar system, this has values from 1 to 365 in standard years and 1 to 366 in leap years.
    Non-ISO calendar systems should implement this field using the most recognized day-of-year values for users of the calendar system. Normally, this is a count of days from 1 to the length of the year.
  - EPOCH_DAY
```
public static final ChronoField EPOCH_DAY
```
    The epoch-day, based on the Java epoch of 1970-01-01 (ISO).
    This field is the sequential count of days where 1970-01-01 (ISO) is zero. Note that this uses the local time-line, ignoring offset and time-zone.
    This field is strictly defined to have the same meaning in all calendar systems. This is necessary to ensure interoperation between calendars.
  - ALIGNED_WEEK_OF_MONTH
```
public static final ChronoField ALIGNED_WEEK_OF_MONTH
```
    The aligned week within a month.
    This represents concept of the count of weeks within the period of a month where the weeks are aligned to the start of the month. This field is typically used with ALIGNED_DAY_OF_WEEK_IN_MONTH.
    For example, in a calendar systems with a seven day week, the first aligned-week-of-month starts on day-of-month 1, the second aligned-week starts on day-of-month 8, and so on. Thus, day-of-month values 1 to 7 are in aligned-week 1, while day-of-month values 8 to 14 are in aligned-week 2, and so on.
    Calendar systems that do not have a seven day week should typically implement this field in the same way, but using the alternate week length.
  - ALIGNED_WEEK_OF_YEAR
```
public static final ChronoField ALIGNED_WEEK_OF_YEAR
```
    The aligned week within a year.
    This represents concept of the count of weeks within the period of a year where the weeks are aligned to the start of the year. This field is typically used with ALIGNED_DAY_OF_WEEK_IN_YEAR.
    For example, in a calendar systems with a seven day week, the first aligned-week-of-year starts on day-of-year 1, the second aligned-week starts on day-of-year 8, and so on. Thus, day-of-year values 1 to 7 are in aligned-week 1, while day-of-year values 8 to 14 are in aligned-week 2, and so on.
    Calendar systems that do not have a seven day week should typically implement this field in the same way, but using the alternate week length.
  - MONTH_OF_YEAR
```
public static final ChronoField MONTH_OF_YEAR
```
    The month-of-year, such as March.
    This represents the concept of the month within the year. In the default ISO calendar system, this has values from January (1) to December (12).
    Non-ISO calendar systems should implement this field using the most recognized month-of-year values for users of the calendar system. Normally, this is a count of months starting from 1.
  - PROLEPTIC_MONTH
```
public static final ChronoField PROLEPTIC_MONTH
```
    The proleptic-month, which counts months sequentially from year 0.
    The first month in year zero has the value zero. The value increase for later months and decrease for earlier ones. Note that this uses the local time-line, ignoring offset and time-zone.
    This field is defined to have the same meaning in all calendar systems. It is simply a count of months from whatever the calendar defines as year 0.
  - YEAR_OF_ERA
```
public static final ChronoField YEAR_OF_ERA
```
    The year within the era.
    This represents the concept of the year within the era. This field is typically used with ERA.
    The standard mental model for a date is based on three concepts - year, month and day. These map onto the YEAR, MONTH_OF_YEAR and DAY_OF_MONTH fields. Note that there is no reference to eras. The full model for a date requires four concepts - era, year, month and day. These map onto the ERA, YEAR_OF_ERA, MONTH_OF_YEAR and DAY_OF_MONTH fields. Whether this field or YEAR is used depends on which mental model is being used. See ChronoLocalDate for more discussion on this topic.
    In the default ISO calendar system, there are two eras defined, 'BCE' and 'CE'. The era 'CE' is the one currently in use and year-of-era runs from 1 to the maximum value. The era 'BCE' is the previous era, and the year-of-era runs backwards.
    For example, subtracting a year each time yield the following:
    - year-proleptic 2 = 'CE' year-of-era 2
    - year-proleptic 1 = 'CE' year-of-era 1
    - year-proleptic 0 = 'BCE' year-of-era 1
    - year-proleptic -1 = 'BCE' year-of-era 2
    
    Note that the ISO-8601 standard does not actually define eras. Note also that the ISO eras do not align with the well-known AD/BC eras due to the change between the Julian and Gregorian calendar systems.
    Non-ISO calendar systems should implement this field using the most recognized year-of-era value for users of the calendar system. Since most calendar systems have only two eras, the year-of-era numbering approach will typically be the same as that used by the ISO calendar system. The year-of-era value should typically always be positive, however this is not required.
  - YEAR
```
public static final ChronoField YEAR
```
    The proleptic year, such as 2012.
    This represents the concept of the year, counting sequentially and using negative numbers. The proleptic year is not interpreted in terms of the era. See YEAR_OF_ERA for an example showing the mapping from proleptic year to year-of-era.
    The standard mental model for a date is based on three concepts - year, month and day. These map onto the YEAR, MONTH_OF_YEAR and DAY_OF_MONTH fields. Note that there is no reference to eras. The full model for a date requires four concepts - era, year, month and day. These map onto the ERA, YEAR_OF_ERA, MONTH_OF_YEAR and DAY_OF_MONTH fields. Whether this field or YEAR_OF_ERA is used depends on which mental model is being used. See ChronoLocalDate for more discussion on this topic.
    Non-ISO calendar systems should implement this field as follows. If the calendar system has only two eras, before and after a fixed date, then the proleptic-year value must be the same as the year-of-era value for the later era, and increasingly negative for the earlier era. If the calendar system has more than two eras, then the proleptic-year value may be defined with any appropriate value, although defining it to be the same as ISO may be the best option.
  - ERA
```
public static final ChronoField ERA
```
    The era.
    This represents the concept of the era, which is the largest division of the time-line. This field is typically used with YEAR_OF_ERA.
    In the default ISO calendar system, there are two eras defined, 'BCE' and 'CE'. The era 'CE' is the one currently in use and year-of-era runs from 1 to the maximum value. The era 'BCE' is the previous era, and the year-of-era runs backwards. See YEAR_OF_ERA for a full example.
    Non-ISO calendar systems should implement this field to define eras. The value of the era that was active on 1970-01-01 (ISO) must be assigned the value 1. Earlier eras must have sequentially smaller values. Later eras must have sequentially larger values,
  - INSTANT_SECONDS
```
public static final ChronoField INSTANT_SECONDS
```
    The instant epoch-seconds.
    This represents the concept of the sequential count of seconds where 1970-01-01T00:00Z (ISO) is zero. This field may be used with NANO_OF_DAY to represent the fraction of the day.
    An Instant represents an instantaneous point on the time-line. On their own they have no elements which allow a local date-time to be obtained. Only when paired with an offset or time-zone can the local date or time be found. This field allows the seconds part of the instant to be queried.
    This field is strictly defined to have the same meaning in all calendar systems. This is necessary to ensure interoperation between calendars.
  - OFFSET_SECONDS
```
public static final ChronoField OFFSET_SECONDS
```
    The offset from UTC/Greenwich.
    This represents the concept of the offset in seconds of local time from UTC/Greenwich.
    A ZoneOffset represents the period of time that local time differs from UTC/Greenwich. This is usually a fixed number of hours and minutes. It is equivalent to the total amount of the offset in seconds. For example, during the winter Paris has an offset of +01:00, which is 3600 seconds.
    This field is strictly defined to have the same meaning in all calendar systems. This is necessary to ensure interoperation between calendars.
- Method Detail
  - values
```
public static ChronoField[] values()
```
    Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
```
for (ChronoField c : ChronoField.values())
    System.out.println(c);
```
    Returns:
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static ChronoField valueOf(java.lang.String name)
```
    Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (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:
    
    java.lang.IllegalArgumentException - if this enum type has no constant with the specified name
    
    java.lang.NullPointerException - if the argument is null
  - getBaseUnit
```
public TemporalUnit getBaseUnit()
```
    Description copied from interface: TemporalField
    
    Gets the unit that the field is measured in.
    The unit of the field is the period that varies within the range. For example, in the field 'MonthOfYear', the unit is 'Months'. See also TemporalField.getRangeUnit().
    
    Specified by:
    
    getBaseUnit in interface TemporalField
    
    Returns:
    the period unit defining the base unit of the field, not null
  - getRangeUnit
```
public TemporalUnit getRangeUnit()
```
    Description copied from interface: TemporalField
    
    Gets the range that the field is bound by.
    The range of the field is the period that the field varies within. For example, in the field 'MonthOfYear', the range is 'Years'. See also TemporalField.getBaseUnit().
    The range is never null. For example, the 'Year' field is shorthand for 'YearOfForever'. It therefore has a unit of 'Years' and a range of 'Forever'.
    
    Specified by:
    
    getRangeUnit in interface TemporalField
    
    Returns:
    the period unit defining the range of the field, not null
  - range
```
public ValueRange range()
```
    Gets the range of valid values for the field.
    All fields can be expressed as a long integer. This method returns an object that describes the valid range for that value.
    This method returns the range of the field in the ISO-8601 calendar system. This range may be incorrect for other calendar systems. Use Chronology.range(ChronoField) to access the correct range for a different calendar system.
    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.
    
    Specified by:
    
    range in interface TemporalField
    
    Returns:
    the range of valid values for the field, not null
  - isDateBased
```
public boolean isDateBased()
```
    Checks if this field represents a component of a date.
    
    Specified by:
    
    isDateBased in interface TemporalField
    
    Returns:
    true if it is a component of a date
  - isTimeBased
```
public boolean isTimeBased()
```
    Checks if this field represents a component of a time.
    
    Specified by:
    
    isTimeBased in interface TemporalField
    
    Returns:
    true if it is a component of a time
  - checkValidValue
```
public long checkValidValue(long value)
```
    Checks that the specified value is valid for this field.
    This validates that the value is within the outer range of valid values returned by range().
    This method checks against the range of the field in the ISO-8601 calendar system. This range may be incorrect for other calendar systems. Use Chronology.range(ChronoField) to access the correct range for a different calendar system.
    
    Parameters:
    value - the value to check
    
    Returns:
    the value that was passed in
  - checkValidIntValue
```
public int checkValidIntValue(long value)
```
    Checks that the specified value is valid and fits in an int.
    This validates that the value is within the outer range of valid values returned by range(). It also checks that all valid values are within the bounds of an int.
    This method checks against the range of the field in the ISO-8601 calendar system. This range may be incorrect for other calendar systems. Use Chronology.range(ChronoField) to access the correct range for a different calendar system.
    
    Parameters:
    value - the value to check
    
    Returns:
    the value that was passed in
  - isSupportedBy
```
public boolean isSupportedBy(TemporalAccessor temporal)
```
    Description copied from interface: TemporalField
    Checks if this field is supported by the temporal object.
    This determines whether the temporal accessor supports this field. If this returns false, the the temporal cannot be queried for this field.
    There are two equivalent ways of using this method. The first is to invoke this method directly. The second is to use TemporalAccessor.isSupported(TemporalField):
```
   // these two lines are equivalent, but the second approach is recommended
   temporal = thisField.isSupportedBy(temporal);
   temporal = temporal.isSupported(thisField);
 
```
    It is recommended to use the second approach, isSupported(TemporalField), as it is a lot clearer to read in code.
    Implementations should determine whether they are supported using the fields available in ChronoField.
    Specified by:
    
    isSupportedBy in interface TemporalField
    
    Parameters:
    temporal - the temporal object to query, not null
    
    Returns:
    true if the date-time can be queried for this field, false if not
  - rangeRefinedBy
```
public ValueRange rangeRefinedBy(TemporalAccessor temporal)
```
    Description copied from interface: TemporalField
    Get the range of valid values for this field using the temporal object to refine the result.
    This uses the temporal object to find the range of valid values for the field. This is similar to TemporalField.range(), however this method refines the result using the temporal. For example, if the field is DAY_OF_MONTH the range method is not accurate as there are four possible month lengths, 28, 29, 30 and 31 days. Using this method with a date allows the range to be accurate, returning just one of those four options.
    There are two equivalent ways of using this method. The first is to invoke this method directly. The second is to use TemporalAccessor.range(TemporalField):
```
   // these two lines are equivalent, but the second approach is recommended
   temporal = thisField.rangeRefinedBy(temporal);
   temporal = temporal.range(thisField);
 
```
    It is recommended to use the second approach, range(TemporalField), as it is a lot clearer to read in code.
    Implementations should perform any queries or calculations using the fields available in ChronoField. If the field is not supported a DateTimeException must be thrown.
    Specified by:
    
    rangeRefinedBy in interface TemporalField
    
    Parameters:
    temporal - the temporal object used to refine the result, not null
    
    Returns:
    the range of valid values for this field, not null
  - getFrom
```
public long getFrom(TemporalAccessor temporal)
```
    Description copied from interface: TemporalField
    Gets the value of this field from the specified temporal object.
    This queries the temporal object for the value of this field.
    There are two equivalent ways of using this method. The first is to invoke this method directly. The second is to use TemporalAccessor.getLong(TemporalField) (or TemporalAccessor.get(TemporalField)):
```
   // these two lines are equivalent, but the second approach is recommended
   temporal = thisField.getFrom(temporal);
   temporal = temporal.getLong(thisField);
 
```
    It is recommended to use the second approach, getLong(TemporalField), as it is a lot clearer to read in code.
    Implementations should perform any queries or calculations using the fields available in ChronoField. If the field is not supported a DateTimeException must be thrown.
    Specified by:
    
    getFrom in interface TemporalField
    
    Parameters:
    temporal - the temporal object to query, not null
    
    Returns:
    the value of this field, not null
  - adjustInto
```
public <R extends Temporal> R adjustInto(R temporal,
                                long newValue)
```
    Description copied from interface: TemporalField
    Returns a copy of the specified temporal object with the value of this field set.
    This returns a new temporal object based on the specified one with the value for this field changed. For example, on a LocalDate, this could be used to set the year, month or day-of-month. The returned object has the same observable type as the specified object.
    In some cases, changing a field is not fully defined. For example, if the target object is a date representing the 31st January, then changing the month to February would be unclear. In cases like this, the implementation is responsible for resolving the result. Typically it will choose the previous valid date, which would be the last valid day of February in this example.
    There are two equivalent ways of using this method. The first is to invoke this method directly. The second is to use Temporal.with(TemporalField, long):
```
   // these two lines are equivalent, but the second approach is recommended
   temporal = thisField.adjustInto(temporal);
   temporal = temporal.with(thisField);
 
```
    It is recommended to use the second approach, with(TemporalField), as it is a lot clearer to read in code.
    Implementations should perform any queries or calculations using the fields available in ChronoField. If the field is not supported a DateTimeException must be thrown.
    Implementations must not alter the specified temporal object. Instead, an adjusted copy of the original must be returned. This provides equivalent, safe behavior for immutable and mutable implementations.
    Specified by:
    
    adjustInto in interface TemporalField
    
    Type Parameters:
    R - the type of the Temporal object
    Parameters:
    temporal - the temporal object to adjust, not null
    newValue - the new value of the field
    
    Returns:
    the adjusted temporal object, not null
  - getDisplayName
```
public java.lang.String getDisplayName(java.util.Locale locale)
```
    Description copied from interface: TemporalField
    
    Gets the display name for the field in the requested locale.
    If there is no display name for the locale then a suitable default must be returned.
    The default implementation must check the locale is not null and return toString().
    
    Specified by:
    
    getDisplayName in interface TemporalField
    
    Parameters:
    locale - the locale to use, not null
    
    Returns:
    the display name for the locale or a suitable default, not null
  - resolve
```
public TemporalAccessor resolve(java.util.Map<TemporalField,java.lang.Long> fieldValues,
                       TemporalAccessor partialTemporal,
                       ResolverStyle resolverStyle)
```
    Description copied from interface: TemporalField
    
    Resolves the date/time information in the builder
    This method is invoked during the resolve of the builder. Implementations should combine the associated field with others to form objects like LocalDate, LocalTime and LocalDateTime
    
    Specified by:
    
    resolve in interface TemporalField
    
    Parameters:
    fieldValues - the map of fields to values, which can be updated, not null
    partialTemporal - the partially complete temporal to query for zone and chronology; querying for other things is undefined and not recommended, not null
    resolverStyle - the requested type of resolve, not null
    
    Returns:
    the resolved temporal object; null if resolving only changed the map, or no resolve occurred
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Enum<ChronoField>

Enum ChronoField

Specification for implementors

Enum Constant Summary

Method Summary

Methods inherited from class java.lang.Enum

Methods inherited from class java.lang.Object

Enum Constant Detail

NANO_OF_SECOND

NANO_OF_DAY

MICRO_OF_SECOND

MICRO_OF_DAY

MILLI_OF_SECOND

MILLI_OF_DAY

SECOND_OF_MINUTE

SECOND_OF_DAY

MINUTE_OF_HOUR

MINUTE_OF_DAY

HOUR_OF_AMPM

CLOCK_HOUR_OF_AMPM

HOUR_OF_DAY

CLOCK_HOUR_OF_DAY

AMPM_OF_DAY

DAY_OF_WEEK

ALIGNED_DAY_OF_WEEK_IN_MONTH

ALIGNED_DAY_OF_WEEK_IN_YEAR

DAY_OF_MONTH

DAY_OF_YEAR

EPOCH_DAY

ALIGNED_WEEK_OF_MONTH

ALIGNED_WEEK_OF_YEAR

MONTH_OF_YEAR

PROLEPTIC_MONTH

YEAR_OF_ERA

YEAR

ERA

INSTANT_SECONDS

OFFSET_SECONDS

Method Detail

values

valueOf

getBaseUnit

getRangeUnit

range

isDateBased

isTimeBased

checkValidValue

checkValidIntValue

isSupportedBy

rangeRefinedBy

getFrom

adjustInto

getDisplayName

resolve

toString