Class CalendarDataProvider

java.lang.Object
java.util.spi.LocaleServiceProvider
java.util.spi.CalendarDataProvider
public abstract class CalendarDataProvider extends LocaleServiceProvider
An abstract class for service providers that provide locale-dependent Calendar parameters.
Since:
1.8
See Also:

Constructor Summary

CalendarDataProvider()
Modifier Constructor Description
protected
Sole constructor.

Method Summary

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

Constructor Details

CalendarDataProvider

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

Method Details

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:

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:

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https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/spi/CalendarDataProvider.html