org.openspaces.admin.internal.alert.bean.util

Class StatisticsTimeLine

java.lang.Object

org.openspaces.admin.internal.alert.bean.util.StatisticsTimeLine

public class StatisticsTimeLine
extends Object

A cyclic array holding statistics (double) values. The array is filled at the cyclicIndex, incremented on each insertion modulo the size of the array. This ensures that new values replace the old ones. Created by moran on 3/3/15.

Since:

10.1.0

Constructor Summary

Constructors

Constructor and Description
StatisticsTimeLine(int length)

Method Summary

Modifier and Type	Method and Description
double	addAndGet(double value)
double[]	getTimeLine()
boolean	isAvailable()
void	restartTimeLine() restarts the time-line measurement.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

StatisticsTimeLine

public StatisticsTimeLine(int length)

Parameters:

length - how many statistics samples to keep

Method Detail

addAndGet

public double addAndGet(double value)

Returns:

add value to statistics time-line and get the previous value

getTimeLine

public double[] getTimeLine()

Returns:

the values in the time-line. May contain obsolete values if isAvailable() returns false.

isAvailable

public boolean isAvailable()

Returns:

true if time-line has enough sampled statistics; otherwise false

restartTimeLine

public void restartTimeLine()

restarts the time-line measurement. Will become unavailable until time-line has enough samples.

toString

public String toString()

Overrides:

toString in class Object