org.joda.time.chrono

Class GJEraDateTimeField

java.lang.Object

org.joda.time.DateTimeField

org.joda.time.field.BaseDateTimeField

org.joda.time.chrono.GJEraDateTimeField

final class GJEraDateTimeField
extends BaseDateTimeField

Provides time calculations for the era component of time.

Since:

1.0

Field Summary

Fields

Modifier and Type	Field and Description
private BasicChronology	iChronology
private static long	serialVersionUID Serialization version

Constructor Summary

Constructors

Constructor and Description
GJEraDateTimeField(BasicChronology chronology) Restricted constructor

Method Summary

Modifier and Type	Method and Description
int	get(long instant) Get the Era component of the specified time instant.
java.lang.String	getAsText(int fieldValue, java.util.Locale locale) Get the human-readable, text value of this field from the field value.
DurationField	getDurationField() Returns the duration per unit value of this field.
int	getMaximumTextLength(java.util.Locale locale) Get the maximum text value for this field.
int	getMaximumValue() Get the maximum allowable value for this field.
int	getMinimumValue() Get the minimum allowable value for this field.
DurationField	getRangeDurationField() Returns the range duration of this field.
boolean	isLenient() Returns true if the set method is lenient.
private java.lang.Object	readResolve() Serialization singleton
long	roundCeiling(long instant) Round to the highest whole unit of this field.
long	roundFloor(long instant) Round to the lowest whole unit of this field.
long	roundHalfCeiling(long instant) Round to the nearest whole unit of this field.
long	roundHalfEven(long instant) Round to the nearest whole unit of this field.
long	roundHalfFloor(long instant) Round to the nearest whole unit of this field.
long	set(long instant, int era) Set the Era component of the specified time instant.
long	set(long instant, java.lang.String text, java.util.Locale locale) Sets a value in the milliseconds supplied from a human-readable, text value.

Methods inherited from class org.joda.time.field.BaseDateTimeField

add, add, add, addWrapField, addWrapField, addWrapPartial, convertText, getAsShortText, getAsShortText, getAsShortText, getAsShortText, getAsShortText, getAsText, getAsText, getAsText, getAsText, getDifference, getDifferenceAsLong, getLeapAmount, getLeapDurationField, getMaximumShortTextLength, getMaximumValue, getMaximumValue, getMaximumValue, getMinimumValue, getMinimumValue, getMinimumValue, getName, getType, isLeap, isSupported, remainder, set, set, set, toString

Methods inherited from class org.joda.time.DateTimeField

setExtended

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

serialVersionUID

private static final long serialVersionUID

Serialization version

See Also:

Constant Field Values

iChronology

private final BasicChronology iChronology

Constructor Detail

GJEraDateTimeField

GJEraDateTimeField(BasicChronology chronology)

Restricted constructor

Method Detail

isLenient

public boolean isLenient()

Description copied from class: DateTimeField

Returns true if the set method is lenient. If so, it accepts values that are out of bounds. For example, a lenient day of month field accepts 32 for January, converting it to February 1.

Specified by:

isLenient in class DateTimeField

Returns:

true if this field is lenient

get

public int get(long instant)

Get the Era component of the specified time instant.

Specified by:

get in class BaseDateTimeField

Parameters:

instant - the time instant in millis to query.

Returns:

the value of the field, in the units of the field

getAsText

public java.lang.String getAsText(int fieldValue,
                                  java.util.Locale locale)

Description copied from class: BaseDateTimeField

Get the human-readable, text value of this field from the field value. If the specified locale is null, the default locale is used.

The default implementation returns Integer.toString(get(instant)).

Note: subclasses that override this method should also override getMaximumTextLength.

Overrides:

getAsText in class BaseDateTimeField

Parameters:

fieldValue - the numeric value to convert to text

locale - the locale to use for selecting a text symbol, null for default

Returns:

the text value of the field

set

public long set(long instant,
                int era)

Set the Era component of the specified time instant.

Specified by:

set in class BaseDateTimeField

Parameters:

instant - the time instant in millis to update.

era - the era to update the time to.

Returns:

the updated time instant.

Throws:

java.lang.IllegalArgumentException - if era is invalid.

set

public long set(long instant,
                java.lang.String text,
                java.util.Locale locale)

Description copied from class: BaseDateTimeField

Sets a value in the milliseconds supplied from a human-readable, text value. If the specified locale is null, the default locale is used.

This implementation uses convertText(String, Locale) and BaseDateTimeField.set(long, int).

Note: subclasses that override this method should also override getAsText.

Overrides:

set in class BaseDateTimeField

Parameters:

instant - the milliseconds from 1970-01-01T00:00:00Z to set in

text - the text value to set

locale - the locale to use for selecting a text symbol, null for default

Returns:

the updated milliseconds

roundFloor

public long roundFloor(long instant)

Description copied from class: BaseDateTimeField

Round to the lowest whole unit of this field. After rounding, the value of this field and all fields of a higher magnitude are retained. The fractional millis that cannot be expressed in whole increments of this field are set to minimum.

For example, a datetime of 2002-11-02T23:34:56.789, rounded to the lowest whole hour is 2002-11-02T23:00:00.000.

Specified by:

roundFloor in class BaseDateTimeField

Parameters:

instant - the milliseconds from 1970-01-01T00:00:00Z to round

Returns:

rounded milliseconds

roundCeiling

public long roundCeiling(long instant)

Description copied from class: BaseDateTimeField

Round to the highest whole unit of this field. The value of this field and all fields of a higher magnitude may be incremented in order to achieve this result. The fractional millis that cannot be expressed in whole increments of this field are set to minimum.

For example, a datetime of 2002-11-02T23:34:56.789, rounded to the highest whole hour is 2002-11-03T00:00:00.000.

The default implementation calls roundFloor, and if the instant is modified as a result, adds one field unit. Subclasses are encouraged to provide a more efficient implementation.

Overrides:

roundCeiling in class BaseDateTimeField

Parameters:

instant - the milliseconds from 1970-01-01T00:00:00Z to round

Returns:

rounded milliseconds

roundHalfFloor

public long roundHalfFloor(long instant)

Description copied from class: BaseDateTimeField

Round to the nearest whole unit of this field. If the given millisecond value is closer to the floor or is exactly halfway, this function behaves like roundFloor. If the millisecond value is closer to the ceiling, this function behaves like roundCeiling.

Overrides:

roundHalfFloor in class BaseDateTimeField

Parameters:

instant - the milliseconds from 1970-01-01T00:00:00Z to round

Returns:

rounded milliseconds

roundHalfCeiling

public long roundHalfCeiling(long instant)

Description copied from class: BaseDateTimeField

Round to the nearest whole unit of this field. If the given millisecond value is closer to the floor, this function behaves like roundFloor. If the millisecond value is closer to the ceiling or is exactly halfway, this function behaves like roundCeiling.

Overrides:

roundHalfCeiling in class BaseDateTimeField

Parameters:

instant - the milliseconds from 1970-01-01T00:00:00Z to round

Returns:

rounded milliseconds

roundHalfEven

public long roundHalfEven(long instant)

Description copied from class: BaseDateTimeField

Round to the nearest whole unit of this field. If the given millisecond value is closer to the floor, this function behaves like roundFloor. If the millisecond value is closer to the ceiling, this function behaves like roundCeiling.

If the millisecond value is exactly halfway between the floor and ceiling, the ceiling is chosen over the floor only if it makes this field's value even.

Overrides:

roundHalfEven in class BaseDateTimeField

Parameters:

instant - the milliseconds from 1970-01-01T00:00:00Z to round

Returns:

rounded milliseconds

getDurationField

public DurationField getDurationField()

Description copied from class: BaseDateTimeField

Returns the duration per unit value of this field. For example, if this field represents "hour of day", then the unit duration is an hour.

Specified by:

getDurationField in class BaseDateTimeField

Returns:

the duration of this field, or UnsupportedDurationField if field has no duration

getRangeDurationField

public DurationField getRangeDurationField()

Description copied from class: BaseDateTimeField

Returns the range duration of this field. For example, if this field represents "hour of day", then the range duration is a day.

Specified by:

getRangeDurationField in class BaseDateTimeField

Returns:

the range duration of this field, or null if field has no range

getMinimumValue

public int getMinimumValue()

Description copied from class: BaseDateTimeField

Get the minimum allowable value for this field.

Specified by:

getMinimumValue in class BaseDateTimeField

Returns:

the minimum valid value for this field, in the units of the field

getMaximumValue

public int getMaximumValue()

Description copied from class: BaseDateTimeField

Get the maximum allowable value for this field.

Specified by:

getMaximumValue in class BaseDateTimeField

Returns:

the maximum valid value for this field, in the units of the field

getMaximumTextLength

public int getMaximumTextLength(java.util.Locale locale)

Description copied from class: BaseDateTimeField

Get the maximum text value for this field. The default implementation returns the equivalent of Integer.toString(getMaximumValue()).length().

Overrides:

getMaximumTextLength in class BaseDateTimeField

Parameters:

locale - the locale to use for selecting a text symbol

Returns:

the maximum text length

readResolve

private java.lang.Object readResolve()

Serialization singleton