org.apache.spark.util

Class SystemClock

Object

org.apache.spark.util.SystemClock

All Implemented Interfaces:

Clock

public class SystemClock
extends Object
implements Clock

A clock backed by the actual time from the OS as reported by the System API.

Constructor Summary

Constructors

Constructor and Description
SystemClock()

Method Summary

Methods

Modifier and Type	Method and Description
long	getTimeMillis()
long	minPollTime()
long	waitTillTime(long targetTime)

Methods inherited from class Object

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

Constructor Detail

SystemClock

public SystemClock()

Method Detail

minPollTime

public long minPollTime()

getTimeMillis

public long getTimeMillis()

Specified by:

getTimeMillis in interface Clock

Returns:

the same time (milliseconds since the epoch) as is reported by System.currentTimeMillis()

waitTillTime

public long waitTillTime(long targetTime)

Specified by:

waitTillTime in interface Clock

Parameters:

targetTime - block until the current time is at least this value

Returns:

current system time when wait has completed