org.modeshape.jmx
Class StatisticalData

java.lang.Object
  org.modeshape.jmx.StatisticalData

All Implemented Interfaces:

Statistics

public class StatisticalData
extends Object
implements Statistics

Value holder exposed by JXM which provides statistical information via Statistics

Field Summary

Fields inherited from interface org.modeshape.jcr.api.monitor.Statistics

NO_STATISTICS

Constructor Summary

StatisticalData(int count, long maximum, long minimum, double mean, double variance)

Method Summary

int	getCount() Get the number of samples to which these statistics apply.
long	getMaximum() Get the maximum of the sampled values.
double	getMean() The mean (or average) of the sampled values.
long	getMinimum() Get the minimum of the sampled values.
double	getStandardDeviation() Get the standard deviation of the sampled values, which is a measure of how spread out the numbers are and is the square root of the variance.
double	getVariance() Get the variance of the sampled values, which is the average of the squared differences from the mean.

Methods inherited from class java.lang.Object

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

Constructor Detail

StatisticalData

@ConstructorProperties(value={"count","maximum","minimum","mean","variance"})
public StatisticalData(int count,
                                                  long maximum,
                                                  long minimum,
                                                  double mean,
                                                  double variance)

Parameters:

count - number of elements in the sample

maximum - max value from the sample

minimum - min value from the sample

mean - sample mean

variance - sample variance

Method Detail

getCount

public int getCount()

Description copied from interface: Statistics

Get the number of samples to which these statistics apply.

Specified by:

getCount in interface Statistics

Returns:

the number of samples; never negative

getMaximum

public long getMaximum()

Description copied from interface: Statistics

Get the maximum of the sampled values.

Specified by:

getMaximum in interface Statistics

Returns:

the maximum value

getMinimum

public long getMinimum()

Description copied from interface: Statistics

Get the minimum of the sampled values.

Specified by:

getMinimum in interface Statistics

Returns:

the minimum value

getMean

public double getMean()

Description copied from interface: Statistics

The mean (or average) of the sampled values. This is returned as a double to reduce the lost of precision.

Specified by:

getMean in interface Statistics

Returns:

the mean or average value

getVariance

public double getVariance()

Description copied from interface: Statistics

Get the variance of the sampled values, which is the average of the squared differences from the mean.

Specified by:

getVariance in interface Statistics

Returns:

the variance; never negative

getStandardDeviation

public double getStandardDeviation()

Description copied from interface: Statistics

Get the standard deviation of the sampled values, which is a measure of how spread out the numbers are and is the square root of the variance.

Specified by:

getStandardDeviation in interface Statistics

Returns:

the standard deviation; never negative