com.jn.langx.util.jodatime.tz

类 FixedDateTimeZone

java.lang.Object

com.jn.langx.util.jodatime.DateTimeZone

com.jn.langx.util.jodatime.tz.FixedDateTimeZone

所有已实现的接口:

Serializable

public final class FixedDateTimeZone
extends DateTimeZone

Basic DateTimeZone implementation that has a fixed name key and offsets.

FixedDateTimeZone is thread-safe and immutable.

从以下版本开始:

1.0

作者:

Brian S O'Neill

另请参阅:

序列化表格

字段概要

从类继承的字段 com.jn.langx.util.jodatime.DateTimeZone

UTC

构造器概要

构造器

构造器和说明
FixedDateTimeZone(String id, String nameKey, int wallOffset, int standardOffset)

方法概要

限定符和类型	方法和说明
boolean	equals(Object obj) Compare this datetime zone with another.
String	getNameKey(long instant) Returns a non-localized name that is unique to this time zone.
int	getOffset(long instant) Gets the millisecond offset to add to UTC to get local time.
int	getOffsetFromLocal(long instantLocal) Gets the millisecond offset to subtract from local time to get UTC time.
int	getStandardOffset(long instant) Gets the standard millisecond offset to add to UTC to get local time, when standard time is in effect.
int	hashCode() Gets a hash code compatable with equals.
boolean	isFixed() Returns true if this time zone has no transitions.
long	nextTransition(long instant) Advances the given instant to where the time zone offset or name changes.
long	previousTransition(long instant) Retreats the given instant to where the time zone offset or name changes.
TimeZone	toTimeZone() Override to return the correct timzone instance.

从类继承的方法 com.jn.langx.util.jodatime.DateTimeZone

adjustOffset, convertLocalToUTC, convertLocalToUTC, convertUTCToLocal, forID, forOffsetHours, forOffsetHoursMinutes, forOffsetMillis, forTimeZone, getAvailableIDs, getDefault, getID, getMillisKeepLocal, getName, getName, getNameProvider, getOffset, getProvider, getShortName, getShortName, isLocalDateTimeGap, isStandardOffset, setDefault, setNameProvider, setProvider, toString, writeReplace

从类继承的方法 java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

构造器详细资料

FixedDateTimeZone

public FixedDateTimeZone(String id,
                         String nameKey,
                         int wallOffset,
                         int standardOffset)

方法详细资料

getNameKey

public String getNameKey(long instant)

从类复制的说明: DateTimeZone

Returns a non-localized name that is unique to this time zone. It can be combined with id to form a unique key for fetching localized names.

指定者:

getNameKey 在类中 DateTimeZone

参数:

instant - milliseconds from 1970-01-01T00:00:00Z to get the name for

返回:

name key or null if id should be used for names

getOffset

public int getOffset(long instant)

从类复制的说明: DateTimeZone

Gets the millisecond offset to add to UTC to get local time.

指定者:

getOffset 在类中 DateTimeZone

参数:

instant - milliseconds from 1970-01-01T00:00:00Z to get the offset for

返回:

the millisecond offset to add to UTC to get local time

getStandardOffset

public int getStandardOffset(long instant)

从类复制的说明: DateTimeZone

Gets the standard millisecond offset to add to UTC to get local time, when standard time is in effect.

指定者:

getStandardOffset 在类中 DateTimeZone

参数:

instant - milliseconds from 1970-01-01T00:00:00Z to get the offset for

返回:

the millisecond offset to add to UTC to get local time

getOffsetFromLocal

public int getOffsetFromLocal(long instantLocal)

从类复制的说明: DateTimeZone

Gets the millisecond offset to subtract from local time to get UTC time. This offset can be used to undo adding the offset obtained by getOffset.

 millisLocal == millisUTC   + getOffset(millisUTC)
 millisUTC   == millisLocal - getOffsetFromLocal(millisLocal)
 

NOTE: After calculating millisLocal, some error may be introduced. At offset transitions (due to DST or other historical changes), ranges of local times may map to different UTC times.

This method will return an offset suitable for calculating an instant after any DST gap. For example, consider a zone with a cutover from 01:00 to 01:59:
Input: 00:00 Output: 00:00
Input: 00:30 Output: 00:30
Input: 01:00 Output: 02:00
Input: 01:30 Output: 02:30
Input: 02:00 Output: 02:00
Input: 02:30 Output: 02:30

During a DST overlap (where the local time is ambiguous) this method will return the earlier instant. The combination of these two rules is to always favour daylight (summer) time over standard (winter) time.

NOTE: Prior to v2.0, the DST overlap behaviour was not defined and varied by hemisphere. Prior to v1.5, the DST gap behaviour was also not defined.

覆盖:

getOffsetFromLocal 在类中 DateTimeZone

参数:

instantLocal - the millisecond instant, relative to this time zone, to get the offset for

返回:

the millisecond offset to subtract from local time to get UTC time

isFixed

public boolean isFixed()

从类复制的说明: DateTimeZone

Returns true if this time zone has no transitions.

指定者:

isFixed 在类中 DateTimeZone

返回:

true if no transitions

nextTransition

public long nextTransition(long instant)

从类复制的说明: DateTimeZone

Advances the given instant to where the time zone offset or name changes. If the instant returned is exactly the same as passed in, then no changes occur after the given instant.

指定者:

nextTransition 在类中 DateTimeZone

参数:

instant - milliseconds from 1970-01-01T00:00:00Z

返回:

milliseconds from 1970-01-01T00:00:00Z

previousTransition

public long previousTransition(long instant)

从类复制的说明: DateTimeZone

Retreats the given instant to where the time zone offset or name changes. If the instant returned is exactly the same as passed in, then no changes occur before the given instant.

指定者:

previousTransition 在类中 DateTimeZone

参数:

instant - milliseconds from 1970-01-01T00:00:00Z

返回:

milliseconds from 1970-01-01T00:00:00Z

toTimeZone

public TimeZone toTimeZone()

Override to return the correct timzone instance.

覆盖:

toTimeZone 在类中 DateTimeZone

返回:

the closest matching TimeZone object

从以下版本开始:

1.5

equals

public boolean equals(Object obj)

从类复制的说明: DateTimeZone

Compare this datetime zone with another.

指定者:

equals 在类中 DateTimeZone

参数:

obj - the object to compare with

返回:

true if equal, based on the ID and all internal rules

hashCode

public int hashCode()

从类复制的说明: DateTimeZone

Gets a hash code compatable with equals.

覆盖:

hashCode 在类中 DateTimeZone

返回:

suitable hashcode