Class CalendarDataProvider

public abstract class CalendarDataProvider
extends LocaleServiceProvider

An abstract class for service providers that provide locale-dependent Calendar parameters.

Since:
1.8
See Also:
CalendarNameProvider

Constructors

Modifier Constructor Description
protected CalendarDataProvider()

Sole constructor.

Methods

Modifier and Type Method Description
abstract int getFirstDayOfWeek​(Locale locale)

Returns the first day of a week in the given locale.
abstract int getMinimalDaysInFirstWeek​(Locale locale)

Returns the minimal number of days required in the first week of a year.

Methods declared in class java.util.spi.LocaleServiceProvider

getAvailableLocales, isSupportedLocale

Methods declared in class java.lang.Object

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

Constructors

CalendarDataProvider

protected CalendarDataProvider()

Sole constructor. (For invocation by subclass constructors, typically implicit.)

Methods

getFirstDayOfWeek

public abstract int getFirstDayOfWeek(Locale locale)

Returns the first day of a week in the given locale. This information is required by Calendar to support operations on the week-related calendar fields.

Parameters:
locale - the desired locale
Returns:
the first day of a week; one of Calendar.SUNDAY .. Calendar.SATURDAY, or 0 if the value isn't available for the locale
Throws:
NullPointerException - if locale is null.
See Also:
Calendar.getFirstDayOfWeek(), First Week

getMinimalDaysInFirstWeek

public abstract int getMinimalDaysInFirstWeek(Locale locale)

Returns the minimal number of days required in the first week of a year. This information is required by Calendar to determine the first week of a year. Refer to the description of how Calendar determines the first week.

Parameters:
locale - the desired locale
Returns:
the minimal number of days of the first week, or 0 if the value isn't available for the locale
Throws:
NullPointerException - if locale is null.
See Also:
Calendar.getMinimalDaysInFirstWeek()

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https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/spi/CalendarDataProvider.html