Rio Project 4.2 API Documentation

org.rioproject.watch
Class Accumulator

java.lang.Object
  org.rioproject.watch.Accumulator

public class Accumulator
extends Object

The Accumulator represents a collection of Calculable objects and performs statistical analysis across the collection of Calculable objects, providing mean, median and standard deviation

Author:

Dennis Reedy

Constructor Summary

Accumulator(WatchDataSource source)
Creates new Accumulator

Method Summary

int	count() Get the count of the current set of values
Calculable[]	getCalcs()
WatchDataSource	getSource() Getter for property source.
void	init() Initialize the range of values for calculating statistics
double	max() Get the max value of the current set of values
double	mean() Get the mean of the current set of values
double	median() Get the median of the current set of values
double	min() Get the min of the current set of values
double	mode() Get the mode of the current set of values
int	modeCount() Get the number of occurrences of the mode in the current set of values
double	range() Get the range of the current set of values
void	reset() Clears the current set of values
void	setSource(WatchDataSource source) Setter for property source.
double	standardDeviation() Get the standard deviation of the current set of values
double	sum() Get the sum of the current set of values

Methods inherited from class java.lang.Object

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

Constructor Detail

Accumulator

public Accumulator(WatchDataSource source)

Creates new Accumulator

Parameters:

source - The WatchDataSource the Accumulator will use

Method Detail

getCalcs

public Calculable[] getCalcs()

reset

public void reset()

Clears the current set of values

init

public void init()
          throws RemoteException

Initialize the range of values for calculating statistics

Throws:

RemoteException - If communication errors happen interfacing with the WatchDataSource

count

public int count()

Get the count of the current set of values

Returns:

int the total number of values

max

public double max()

Get the max value of the current set of values

Returns:

double the max of values

mean

public double mean()

Get the mean of the current set of values

Returns:

double the mean of the values

median

public double median()

Get the median of the current set of values

Returns:

double the median of the values

min

public double min()

Get the min of the current set of values

Returns:

double the min of the values

mode

public double mode()

Get the mode of the current set of values

Returns:

double the mode of the values

modeCount

public int modeCount()

Get the number of occurrences of the mode in the current set of values

Returns:

int the mode count

range

public double range()

Get the range of the current set of values

Returns:

double the range of the values

standardDeviation

public double standardDeviation()

Get the standard deviation of the current set of values

Returns:

double the standard deviation of the values

sum

public double sum()

Get the sum of the current set of values

Returns:

double the sum of the values

getSource

public WatchDataSource getSource()

Getter for property source.

Returns:

Value of property source.

setSource

public void setSource(WatchDataSource source)

Setter for property source.

Parameters:

source - New value of property source.