org.h2.util

类 TimeZoneProvider

java.lang.Object

org.h2.util.TimeZoneProvider

public abstract class TimeZoneProvider
extends Object

Provides access to time zone API.

字段概要

字段

限定符和类型	字段和说明
static TimeZoneProvider[]	CACHE A small cache for timezone providers.
static TimeZoneProvider	UTC The UTC time zone provider.

构造器概要

构造器

构造器和说明
TimeZoneProvider()

方法概要

限定符和类型	方法和说明
static TimeZoneProvider	getDefault() Returns the time zone provider for the system default time zone.
abstract long	getEpochSecondsFromLocal(long dateValue, long timeNanos) Calculates the epoch seconds from local date and time.
abstract String	getId() Returns the ID of the time zone.
abstract String	getShortId(long epochSeconds) Get the standard time name or daylight saving time name of the time zone.
abstract int	getTimeZoneOffsetLocal(long dateValue, long timeNanos) Calculates the time zone offset in seconds for the specified date value and nanoseconds since midnight in local time.
abstract int	getTimeZoneOffsetUTC(long epochSeconds) Calculates the time zone offset in seconds for the specified EPOCH seconds.
boolean	hasFixedOffset() Returns whether this is a simple time zone provider with a fixed offset from UTC.
static TimeZoneProvider	ofId(String id) Returns the time zone provider with the specified name.
static TimeZoneProvider	ofOffset(int offset) Returns the time zone provider with the specified offset.

从类继承的方法 java.lang.Object

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

字段详细资料

UTC

public static final TimeZoneProvider UTC

The UTC time zone provider.

CACHE

public static TimeZoneProvider[] CACHE

A small cache for timezone providers.

构造器详细资料

TimeZoneProvider

public TimeZoneProvider()

方法详细资料

ofOffset

public static TimeZoneProvider ofOffset(int offset)

Returns the time zone provider with the specified offset.

参数:

offset - UTC offset in seconds

返回:

the time zone provider with the specified offset

ofId

public static TimeZoneProvider ofId(String id)
                             throws RuntimeException

Returns the time zone provider with the specified name.

参数:

id - the ID of the time zone

返回:

the time zone provider with the specified name

抛出:

RuntimeException - if time zone with specified ID isn't known

getDefault

public static TimeZoneProvider getDefault()

Returns the time zone provider for the system default time zone.

返回:

the time zone provider for the system default time zone

getTimeZoneOffsetUTC

public abstract int getTimeZoneOffsetUTC(long epochSeconds)

Calculates the time zone offset in seconds for the specified EPOCH seconds.

参数:

epochSeconds - seconds since EPOCH

返回:

time zone offset in minutes

getTimeZoneOffsetLocal

public abstract int getTimeZoneOffsetLocal(long dateValue,
                                           long timeNanos)

Calculates the time zone offset in seconds for the specified date value and nanoseconds since midnight in local time.

参数:

dateValue - date value

timeNanos - nanoseconds since midnight

返回:

time zone offset in minutes

getEpochSecondsFromLocal

public abstract long getEpochSecondsFromLocal(long dateValue,
                                              long timeNanos)

Calculates the epoch seconds from local date and time.

参数:

dateValue - date value

timeNanos - nanoseconds since midnight

返回:

the epoch seconds value

getId

public abstract String getId()

Returns the ID of the time zone.

返回:

the ID of the time zone

getShortId

public abstract String getShortId(long epochSeconds)

Get the standard time name or daylight saving time name of the time zone.

参数:

epochSeconds - seconds since EPOCH

返回:

the standard time name or daylight saving time name of the time zone

hasFixedOffset

public boolean hasFixedOffset()

Returns whether this is a simple time zone provider with a fixed offset from UTC.

返回:

whether this is a simple time zone provider with a fixed offset from UTC