org.apache.solr.common.util

类 TimeSource.NanoTimeSource

java.lang.Object

org.apache.solr.common.util.TimeSource

org.apache.solr.common.util.TimeSource.NanoTimeSource

封闭类:

TimeSource

public static final class TimeSource.NanoTimeSource
extends TimeSource

Implementation that uses System.nanoTime(). Epoch time is initialized using TimeSource.CurrentTimeSource, and then calculated as the elapsed number of nanoseconds as measured by this implementation.

嵌套类概要

从类继承的嵌套类/接口 org.apache.solr.common.util.TimeSource

TimeSource.CurrentTimeSource, TimeSource.NanoTimeSource, TimeSource.SimTimeSource

字段概要

从类继承的字段 org.apache.solr.common.util.TimeSource

CURRENT_TIME, NANO_TIME

构造器概要

构造器

构造器和说明
NanoTimeSource()

方法概要

限定符和类型	方法和说明
long	convertDelay(TimeUnit fromUnit, long value, TimeUnit toUnit) This method allows using TimeSource with APIs that require providing just plain time intervals, eg.
long	getEpochTimeNs() Return Epoch time.
long[]	getTimeAndEpochNs() Return both the source's time value and the corresponding epoch time value.
long	getTimeNs() Return a time value, in nanosecond units.
void	sleep(long ms) Sleep according to this source's notion of time.

从类继承的方法 org.apache.solr.common.util.TimeSource

get, toString

从类继承的方法 java.lang.Object

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

构造器详细资料

NanoTimeSource

public NanoTimeSource()

方法详细资料

getTimeNs

public long getTimeNs()

从类复制的说明: TimeSource

Return a time value, in nanosecond units. Depending on implementation this value may or may not be related to Epoch time.

指定者:

getTimeNs 在类中 TimeSource

getEpochTimeNs

public long getEpochTimeNs()

从类复制的说明: TimeSource

Return Epoch time. Implementations that are not natively based on epoch time may return values that are consistently off by a (small) fixed number of milliseconds from the actual epoch time.

指定者:

getEpochTimeNs 在类中 TimeSource

getTimeAndEpochNs

public long[] getTimeAndEpochNs()

从类复制的说明: TimeSource

Return both the source's time value and the corresponding epoch time value. This method ensures that epoch time calculations use the same internal value of time as that reported by TimeSource.getTimeNs().

指定者:

getTimeAndEpochNs 在类中 TimeSource

返回:

an array where the first element is TimeSource.getTimeNs() and the second element is TimeSource.getEpochTimeNs().

sleep

public void sleep(long ms)
           throws InterruptedException

从类复制的说明: TimeSource

Sleep according to this source's notion of time. Eg. accelerated time source such as TimeSource.SimTimeSource will sleep proportionally shorter, according to its multiplier.

指定者:

sleep 在类中 TimeSource

参数:

ms - number of milliseconds to sleep

抛出:

InterruptedException - when the current thread is interrupted

convertDelay

public long convertDelay(TimeUnit fromUnit,
                         long value,
                         TimeUnit toUnit)

从类复制的说明: TimeSource

This method allows using TimeSource with APIs that require providing just plain time intervals, eg. Object.wait(long). Values returned by this method are adjusted according to the time source's notion of time - eg. accelerated time source provided by TimeSource.SimTimeSource will return intervals that are proportionally shortened by the multiplier.

NOTE: converting small values may significantly affect precision of the returned values due to rounding, especially for accelerated time source, so care should be taken to use time units that result in relatively large values. For example, converting a value of 1 expressed in seconds would result in less precision than converting a value of 1000 expressed in milliseconds.

指定者:

convertDelay 在类中 TimeSource

参数:

fromUnit - source unit

value - original value

toUnit - target unit

返回:

converted value, possibly scaled by the source's notion of accelerated time (see TimeSource.SimTimeSource)