org.springframework.integration.monitor
Class ExponentialMovingAverageCumulativeHistory

java.lang.Object
  org.springframework.integration.monitor.ExponentialMovingAverageCumulativeHistory

public class ExponentialMovingAverageCumulativeHistory
extends Object

Cumulative statistics for a series of real numbers with higher weight given to recent data but without storing any history. Older values are given exponentially smaller weight, with a decay factor determined by a "window" size chosen by the client.

Author:

Dave Syer

Constructor Summary

ExponentialMovingAverageCumulativeHistory(int window)

Method Summary

void	append(double value)
int	getCount()
double	getMax()
double	getMean()
double	getMin()
double	getStandardDeviation()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ExponentialMovingAverageCumulativeHistory

public ExponentialMovingAverageCumulativeHistory(int window)

Parameters:

window - the exponential lapse window (number of measurements)

Method Detail

append

public void append(double value)

getCount

public int getCount()

getMean

public double getMean()

getStandardDeviation

public double getStandardDeviation()

getMax

public double getMax()

getMin

public double getMin()

toString

public String toString()

Overrides:

toString in class Object