com.netflix.spectator.impl

Class StepDouble

java.lang.Object

com.netflix.spectator.impl.StepDouble

All Implemented Interfaces:

StepValue

public class StepDouble
extends Object
implements StepValue

Utility class for managing a set of AtomicLong instances mapped to a particular step interval. The current implementation keeps an array of with two items where one is the current value being updated and the other is the value from the previous interval and is only available for polling.

This class is an internal implementation detail only intended for use within spectator. It is subject to change without notice.

Constructor Summary

Constructors

Constructor and Description
StepDouble(double init, Clock clock, long step) Create a new instance.

Method Summary

Modifier and Type	Method and Description
AtomicDouble	getCurrent() Get the AtomicDouble for the current bucket.
double	poll() Get the value for the last completed interval.
double	pollAsRate() Get the value for the last completed interval as a rate per second.
long	timestamp() Get the timestamp for the end of the last completed interval.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

StepDouble

public StepDouble(double init,
                  Clock clock,
                  long step)

Create a new instance.

Method Detail

getCurrent

public AtomicDouble getCurrent()

Get the AtomicDouble for the current bucket.

poll

public double poll()

Get the value for the last completed interval.

pollAsRate

public double pollAsRate()

Get the value for the last completed interval as a rate per second.

Specified by:

pollAsRate in interface StepValue

timestamp

public long timestamp()

Get the timestamp for the end of the last completed interval.

Specified by:

timestamp in interface StepValue

toString

public String toString()

Overrides:

toString in class Object