org.apache.solr.util.stats
Class Clock

java.lang.Object
  org.apache.solr.util.stats.Clock

Direct Known Subclasses:

Clock.CpuTimeClock, Clock.UserTimeClock

public abstract class Clock
extends Object

An abstraction for how time passes. It is passed to Timer to track timing.

Nested Class Summary

static class	Clock.CpuTimeClock A clock implementation which returns the current thread's CPU time.
static class	Clock.UserTimeClock A clock implementation which returns the current time in epoch nanoseconds.

Constructor Summary

Clock()

Method Summary

static Clock	defaultClock() The default clock to use.
abstract long	getTick() Returns the current time tick.
long	getTime() Returns the current time in milliseconds.

Methods inherited from class java.lang.Object

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

Constructor Detail

Clock

public Clock()

Method Detail

getTick

public abstract long getTick()

Returns the current time tick.

Returns:

time tick in nanoseconds

getTime

public long getTime()

Returns the current time in milliseconds.

Returns:

time in milliseconds

defaultClock

public static Clock defaultClock()

The default clock to use.

Returns:

the default Clock.UserTimeClock instance

See Also:

Clock.UserTimeClock