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jdk.util.spi.CalendarNameProvider

An abstract class for service providers that provide localized string representations (display names) of Calendar field values.

Calendar Types

Calendar types are used to specify calendar systems for which the getDisplayName and getDisplayNames methods provide calendar field value names. See Calendar.getCalendarType() for details.

Calendar Fields

Calendar fields are specified with the constants defined in Calendar. The following are calendar-common fields and their values to be supported for each calendar system.

Field
Value
Description


Calendar.MONTH
Calendar.JANUARY to Calendar.UNDECIMBER
Month numbering is 0-based (e.g., 0 - January, ..., 11 -
    December). Some calendar systems have 13 months. Month
    names need to be supported in both the formatting and
    stand-alone forms if required by the supported locales. If there's
    no distinction in the two forms, the same names should be returned
    in both of the forms.


Calendar.DAY_OF_WEEK
Calendar.SUNDAY to Calendar.SATURDAY
Day-of-week numbering is 1-based starting from Sunday (i.e., 1 - Sunday,
    ..., 7 - Saturday).


Calendar.AM_PM
Calendar.AM to Calendar.PM
0 - AM, 1 - PM

The following are calendar-specific fields and their values to be supported.

Calendar Type
Field
Value
Description


"gregory"
Calendar.ERA
0
GregorianCalendar.BC (BCE)


1
GregorianCalendar.AD (CE)


"buddhist"
Calendar.ERA
0
BC (BCE)


1
B.E. (Buddhist Era)


"japanese"
Calendar.ERA
0
Seireki (Before Meiji)


1
Meiji


2
Taisho


3
Showa


4
Heisei


Calendar.YEAR
1
the first year in each era. It should be returned when a long
style (Calendar.LONG_FORMAT or Calendar.LONG_STANDALONE) is
specified. See also the
Year representation in SimpleDateFormat.


"roc"
Calendar.ERA
0
Before R.O.C.


1
R.O.C.


"islamic"
Calendar.ERA
0
Before AH


1
Anno Hijrah (AH)

Calendar field value names for "gregory" must be consistent with the date-time symbols provided by DateFormatSymbolsProvider.

Time zone names are supported by TimeZoneNameProvider.

An abstract class for service providers that provide localized string
representations (display names) of Calendar field values.

Calendar Types

Calendar types are used to specify calendar systems for which the getDisplayName and getDisplayNames methods provide
calendar field value names. See Calendar.getCalendarType() for details.

Calendar Fields

Calendar fields are specified with the constants defined in Calendar. The following are calendar-common fields and their values to be
supported for each calendar system.



    Field
    Value
    Description


    Calendar.MONTH
    Calendar.JANUARY to Calendar.UNDECIMBER
    Month numbering is 0-based (e.g., 0 - January, ..., 11 -
        December). Some calendar systems have 13 months. Month
        names need to be supported in both the formatting and
        stand-alone forms if required by the supported locales. If there's
        no distinction in the two forms, the same names should be returned
        in both of the forms.


    Calendar.DAY_OF_WEEK
    Calendar.SUNDAY to Calendar.SATURDAY
    Day-of-week numbering is 1-based starting from Sunday (i.e., 1 - Sunday,
        ..., 7 - Saturday).


    Calendar.AM_PM
    Calendar.AM to Calendar.PM
    0 - AM, 1 - PM



The following are calendar-specific fields and their values to be supported.



    Calendar Type
    Field
    Value
    Description


    "gregory"
    Calendar.ERA
    0
    GregorianCalendar.BC (BCE)


    1
    GregorianCalendar.AD (CE)


    "buddhist"
    Calendar.ERA
    0
    BC (BCE)


    1
    B.E. (Buddhist Era)


    "japanese"
    Calendar.ERA
    0
    Seireki (Before Meiji)


    1
    Meiji


    2
    Taisho


    3
    Showa


    4
    Heisei


    Calendar.YEAR
    1
    the first year in each era. It should be returned when a long
    style (Calendar.LONG_FORMAT or Calendar.LONG_STANDALONE) is
    specified. See also the
    Year representation in SimpleDateFormat.


    "roc"
    Calendar.ERA
    0
    Before R.O.C.


    1
    R.O.C.


    "islamic"
    Calendar.ERA
    0
    Before AH


    1
    Anno Hijrah (AH)



Calendar field value names for "gregory" must be consistent with
the date-time symbols provided by DateFormatSymbolsProvider.

Time zone names are supported by TimeZoneNameProvider.
raw docstring

get-display-nameclj

(get-display-name this calendar-type field value style locale)

Returns the string representation (display name) of the calendar field value in the given style and locale. If no string representation is applicable, null is returned.

field is a Calendar field index, such as Calendar.MONTH. The time zone fields, Calendar.ZONE_OFFSET and Calendar.DST_OFFSET, are not supported by this method. null must be returned if any time zone fields are specified.

value is the numeric representation of the field value. For example, if field is Calendar.DAY_OF_WEEK, the valid values are Calendar.SUNDAY to Calendar.SATURDAY (inclusive).

style gives the style of the string representation. It is one of Calendar.SHORT_FORMAT (SHORT), Calendar.SHORT_STANDALONE, Calendar.LONG_FORMAT (LONG), Calendar.LONG_STANDALONE, Calendar.NARROW_FORMAT, or Calendar.NARROW_STANDALONE.

For example, the following call will return "Sunday".

getDisplayName("gregory", Calendar.DAY_OF_WEEK, Calendar.SUNDAY, Calendar.LONG_STANDALONE, Locale.ENGLISH);

calendar-type - the calendar type. (Any calendar type given by locale is ignored.) - java.lang.String field - the Calendar field index, such as Calendar.DAY_OF_WEEK - int value - the value of the Calendar field, such as Calendar.MONDAY - int style - the string representation style: one of Calendar.SHORT_FORMAT (SHORT), Calendar.SHORT_STANDALONE, Calendar.LONG_FORMAT (LONG), Calendar.LONG_STANDALONE, Calendar.NARROW_FORMAT, or Calendar.NARROW_STANDALONE - int locale - the desired locale - java.util.Locale

returns: the string representation of the field value, or null if the string representation is not applicable or the given calendar type is unknown - java.lang.String

throws: java.lang.IllegalArgumentException - if field or style is invalid

Returns the string representation (display name) of the calendar
 field value in the given style and
 locale.  If no string representation is
 applicable, null is returned.

 field is a Calendar field index, such as Calendar.MONTH. The time zone fields, Calendar.ZONE_OFFSET and
 Calendar.DST_OFFSET, are not supported by this
 method. null must be returned if any time zone fields are
 specified.

 value is the numeric representation of the field value.
 For example, if field is Calendar.DAY_OF_WEEK, the valid
 values are Calendar.SUNDAY to Calendar.SATURDAY
 (inclusive).

 style gives the style of the string representation. It is one
 of Calendar.SHORT_FORMAT (SHORT),
 Calendar.SHORT_STANDALONE, Calendar.LONG_FORMAT
 (LONG), Calendar.LONG_STANDALONE,
 Calendar.NARROW_FORMAT, or Calendar.NARROW_STANDALONE.

 For example, the following call will return "Sunday".


 getDisplayName("gregory", Calendar.DAY_OF_WEEK, Calendar.SUNDAY,
                Calendar.LONG_STANDALONE, Locale.ENGLISH);

calendar-type - the calendar type. (Any calendar type given by locale is ignored.) - `java.lang.String`
field - the Calendar field index, such as Calendar.DAY_OF_WEEK - `int`
value - the value of the Calendar field, such as Calendar.MONDAY - `int`
style - the string representation style: one of Calendar.SHORT_FORMAT (SHORT), Calendar.SHORT_STANDALONE, Calendar.LONG_FORMAT (LONG), Calendar.LONG_STANDALONE, Calendar.NARROW_FORMAT, or Calendar.NARROW_STANDALONE - `int`
locale - the desired locale - `java.util.Locale`

returns: the string representation of the field value, or null if the string representation is not applicable or
         the given calendar type is unknown - `java.lang.String`

throws: java.lang.IllegalArgumentException - if field or style is invalid
raw docstring

get-display-namesclj

(get-display-names this calendar-type field style locale)

Returns a Map containing all string representations (display names) of the Calendar field in the given style and locale and their corresponding field values.

field is a Calendar field index, such as Calendar.MONTH. The time zone fields, Calendar.ZONE_OFFSET and Calendar.DST_OFFSET, are not supported by this method. null must be returned if any time zone fields are specified.

style gives the style of the string representation. It must be one of Calendar.ALL_STYLES, Calendar.SHORT_FORMAT (SHORT), Calendar.SHORT_STANDALONE, Calendar.LONG_FORMAT (LONG), Calendar.LONG_STANDALONE, Calendar.NARROW_FORMAT, or Calendar.NARROW_STANDALONE. Note that narrow names may not be unique due to use of single characters, such as "S" for Sunday and Saturday, and that no narrow names are included in that case.

For example, the following call will return a Map containing "January" to Calendar.JANUARY, "Jan" to Calendar.JANUARY, "February" to Calendar.FEBRUARY, "Feb" to Calendar.FEBRUARY, and so on.

getDisplayNames("gregory", Calendar.MONTH, Calendar.ALL_STYLES, Locale.ENGLISH);

calendar-type - the calendar type. (Any calendar type given by locale is ignored.) - java.lang.String field - the calendar field for which the display names are returned - int style - the style applied to the display names; one of Calendar.ALL_STYLES, Calendar.SHORT_FORMAT (SHORT), Calendar.SHORT_STANDALONE, Calendar.LONG_FORMAT (LONG), Calendar.LONG_STANDALONE, Calendar.NARROW_FORMAT, or Calendar.NARROW_STANDALONE - int locale - the desired locale - java.util.Locale

returns: a Map containing all display names of field in style and locale and their field values, or null if no display names are defined for field - java.util.Map<java.lang.String,java.lang.Integer>

throws: java.lang.NullPointerException - if locale is null

Returns a Map containing all string representations (display
 names) of the Calendar field in the given style
 and locale and their corresponding field values.

 field is a Calendar field index, such as Calendar.MONTH. The time zone fields, Calendar.ZONE_OFFSET and
 Calendar.DST_OFFSET, are not supported by this
 method. null must be returned if any time zone fields are specified.

 style gives the style of the string representation. It must be
 one of Calendar.ALL_STYLES, Calendar.SHORT_FORMAT (SHORT), Calendar.SHORT_STANDALONE, Calendar.LONG_FORMAT (LONG), Calendar.LONG_STANDALONE, Calendar.NARROW_FORMAT, or
 Calendar.NARROW_STANDALONE. Note that narrow names may
 not be unique due to use of single characters, such as "S" for Sunday
 and Saturday, and that no narrow names are included in that case.

 For example, the following call will return a Map containing
 "January" to Calendar.JANUARY, "Jan" to Calendar.JANUARY, "February" to Calendar.FEBRUARY,
 "Feb" to Calendar.FEBRUARY, and so on.


 getDisplayNames("gregory", Calendar.MONTH, Calendar.ALL_STYLES, Locale.ENGLISH);

calendar-type - the calendar type. (Any calendar type given by locale is ignored.) - `java.lang.String`
field - the calendar field for which the display names are returned - `int`
style - the style applied to the display names; one of Calendar.ALL_STYLES, Calendar.SHORT_FORMAT (SHORT), Calendar.SHORT_STANDALONE, Calendar.LONG_FORMAT (LONG), Calendar.LONG_STANDALONE, Calendar.NARROW_FORMAT, or Calendar.NARROW_STANDALONE - `int`
locale - the desired locale - `java.util.Locale`

returns: a Map containing all display names of field in
         style and locale and their field values,
         or null if no display names are defined for field - `java.util.Map<java.lang.String,java.lang.Integer>`

throws: java.lang.NullPointerException - if locale is null
raw docstring

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