org.apache.jackrabbit.oak.stats

Class Clock.Virtual

java.lang.Object

org.apache.jackrabbit.oak.stats.Clock

org.apache.jackrabbit.oak.stats.Clock.Virtual

Enclosing class:

Clock

public static class Clock.Virtual
extends Clock

A virtual clock that has no connection to the actual system time. Instead the clock maintains an internal counter that's incremented atomically whenever the current time is requested. This guarantees that the reported time signal is always strictly increasing.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.jackrabbit.oak.stats.Clock

Clock.Fast, Clock.Virtual

Field Summary

Fields inherited from class org.apache.jackrabbit.oak.stats.Clock

ACCURATE, SIMPLE

Constructor Summary

Constructors

Constructor and Description
Virtual()

Method Summary

Modifier and Type	Method and Description
long	getTime() Returns the current time in milliseconds since the epoch.
java.lang.String	toString()
void	waitUntil(long timestamp) Waits until the given point in time is reached.

Methods inherited from class org.apache.jackrabbit.oak.stats.Clock

getDate, getDateIncreasing, getDateMonotonic, getTimeIncreasing, getTimeMonotonic

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Virtual

public Virtual()

Method Detail

getTime

public long getTime()

Description copied from class: Clock

Returns the current time in milliseconds since the epoch.

Specified by:

getTime in class Clock

Returns:

current time in milliseconds since the epoch

See Also:

System.currentTimeMillis()

waitUntil

public void waitUntil(long timestamp)

Description copied from class: Clock

Waits until the given point in time is reached. The current thread is suspended until the Clock.getTimeIncreasing() method returns a time that's equal or greater than the given point in time.

Overrides:

waitUntil in class Clock

Parameters:

timestamp - time in milliseconds since epoch

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object