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  • package java
    Definition Classes
    root
  • package time

    The main API for dates, times, instants, and durations.

    The main API for dates, times, instants, and durations.

    The classes defined here represent the principal date-time concepts, including instants, durations, dates, times, time-zones and periods. They are based on the ISO calendar system, which is the de facto world calendar following the proleptic Gregorian rules. All the classes are immutable and thread-safe.

    Each date time instance is composed of fields that are conveniently made available by the APIs. For lower level access to the fields refer to the org.threeten.bp.temporal package. Each class includes support for printing and parsing all manner of dates and times. Refer to the org.threeten.bp.format package for customization options.

    The org.threeten.bp.chrono package contains the calendar neutral API. This is intended for use by applications that need to use localized calendars. It is recommended that applications use the ISO-8601 dates and time classes from this package across system boundaries, such as to the database or across the network. The calendar neutral API should be reserved for interactions with users.

    Dates and Times

    org.threeten.bp.Instant is essentially a numeric timestamp. The current Instant can be retrieved from a org.threeten.bp.Clock. This is useful for logging and persistence of a point in time and has in the past been associated with storing the result from java.lang.System#currentTimeMillis().

    org.threeten.bp.LocalDate stores a date without a time. This stores a date like '2010-12-03' and could be used to store a birthday.

    org.threeten.bp.LocalTime stores a time without a date. This stores a time like '11:30' and could be used to store an opening or closing time.

    org.threeten.bp.LocalDateTime stores a date and time. This stores a date-time like '2010-12-03T11:30'.

    org.threeten.bp.OffsetTime stores a time and offset from UTC without a date. This stores a date like '11:30+01:00'. The ZoneOffset is of the form '+01:00'.

    org.threeten.bp.OffsetDateTime stores a date and time and offset from UTC. This stores a date-time like '2010-12-03T11:30+01:00'. This is sometimes found in XML messages and other forms of persistence, but contains less information than a full time-zone.

    org.threeten.bp.ZonedDateTime stores a date and time with a time-zone. This is useful if you want to perform accurate calculations of dates and times taking into account the org.threeten.bp.ZoneId, such as 'Europe/Paris'. Where possible, it is recommended to use a simpler class. The widespread use of time-zones tends to add considerable complexity to an application.

    Duration and Period

    Beyond dates and times, the API also allows the storage of period and durations of time. A org.threeten.bp.Duration is a simple measure of time along the time-line in nanoseconds. A org.threeten.bp.Period expresses an amount of time in units meaningful to humans, such as years or hours.

    Additional value types

    org.threeten.bp.Year stores a year on its own. This stores a single year in isolation, such as '2010'.

    org.threeten.bp.YearMonth stores a year and month without a day or time. This stores a year and month, such as '2010-12' and could be used for a credit card expiry.

    org.threeten.bp.MonthDay stores a month and day without a year or time. This stores a month and day-of-month, such as '--12-03' and could be used to store an annual event like a birthday without storing the year.

    org.threeten.bp.Month stores a month on its own. This stores a single month-of-year in isolation, such as 'DECEMBER'.

    org.threeten.bp.DayOfWeek stores a day-of-week on its own. This stores a single day-of-week in isolation, such as 'TUESDAY'.

    Definition Classes
    java
  • package zone

    Support for time-zones and their rules.

    Support for time-zones and their rules.

    Daylight Saving Time and Time-Zones are concepts used by Governments to alter local time. This package provides support for time-zones, their rules and the resulting gaps and overlaps in the local time-line typically caused by Daylight Saving Time.

    Definition Classes
    time
  • DefaultTzdbZoneRulesProvider
  • Ser
  • ServiceLoaderZoneRulesInitializer
  • StandardZoneRules
  • ZoneMap
  • ZoneOffsetTransition
  • ZoneOffsetTransitionRule
  • ZoneRules
  • ZoneRulesBuilder
  • ZoneRulesException
  • ZoneRulesInitializer
  • ZoneRulesProvider
c

java.time.zone

DefaultTzdbZoneRulesProvider

final class DefaultTzdbZoneRulesProvider extends ZoneRulesProvider

Minimal provider for UTC

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  1. new DefaultTzdbZoneRulesProvider()

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  14. final def notifyAll(): Unit
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  15. def provideRefresh: Boolean

    SPI method to refresh the rules from the underlying data provider.

    SPI method to refresh the rules from the underlying data provider.

    This method provides the opportunity for a provider to dynamically recheck the underlying data provider to find the latest rules. This could be used to load new rules without stopping the JVM. Dynamic behavior is entirely optional and most providers do not support it.

    This implementation returns false.

    returns

    true if the rules were updated

    Attributes
    protected
    Definition Classes
    ZoneRulesProvider
    Exceptions thrown

    DateTimeException if an error occurs during the refresh

  16. def provideRules(regionId: String, forCaching: Boolean): ZoneRules

    SPI method to get the rules for the zone ID.

    SPI method to get the rules for the zone ID.

    This loads the rules for the region and version specified. The version may be null to indicate the "latest" version.

    regionId

    the time-zone region ID, not null

    returns

    the rules, not null

    Attributes
    protected
    Definition Classes
    DefaultTzdbZoneRulesProvider → ZoneRulesProvider
    Exceptions thrown

    DateTimeException if rules cannot be obtained

  17. def provideVersions(zoneId: String): NavigableMap[String, ZoneRules]

    SPI method to get the history of rules for the zone ID.

    SPI method to get the history of rules for the zone ID.

    This returns a map of historical rules keyed by a version string. The exact meaning and format of the version is provider specific. The version must follow lexicographical order, thus the returned map will be order from the oldest known rules to the newest available rules. The default 'TZDB' group uses version numbering consisting of the year followed by a letter, such as '2009e' or '2012f'.

    Implementations must provide a result for each valid zone ID, however they do not have to provide a history of rules. Thus the map will always contain one element, and will only contain more than one element if historical rule information is available.

    The returned versions remain available and valid for the lifetime of the application. A dynamic provider may increase the set of versions as more data becomes available.

    zoneId

    the zone region ID as used by { @code ZoneId}, not null

    returns

    a modifiable copy of the history of the rules for the ID, sorted from oldest to newest, not null

    Attributes
    protected
    Definition Classes
    DefaultTzdbZoneRulesProvider → ZoneRulesProvider
    Exceptions thrown

    ZoneRulesException if history cannot be obtained for the zone ID

  18. def provideZoneIds: Set[String]

    SPI method to get the available zone IDs.

    SPI method to get the available zone IDs.

    This obtains the IDs that this ZoneRulesProvider provides. A provider should provide data for at least one region.

    The returned regions remain available and valid for the lifetime of the application. A dynamic provider may increase the set of regions as more data becomes available.

    returns

    the unmodifiable set of region IDs being provided, not null

    Attributes
    protected
    Definition Classes
    DefaultTzdbZoneRulesProvider → ZoneRulesProvider
    Exceptions thrown

    ZoneRulesException if a problem occurs while providing the IDs

  19. final def synchronized[T0](arg0: => T0): T0
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  20. def toString(): String
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Inherited from ZoneRulesProvider

Inherited from AnyRef

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