org.javasimon.callback.timeline
Class StopwatchTimeRange

java.lang.Object
  org.javasimon.callback.timeline.TimeRange
      org.javasimon.callback.timeline.StopwatchTimeRange

public class StopwatchTimeRange
extends TimeRange

Stopwatch statistics gathered for a specific time range. This class is not intended to be thread safe.

Author:

gerald

Field Summary

private long	counter Counter (Number of values)
private long	last Last value
private long	max Minimum
private long	min Minimum
private long	squareTotal (Sum of square of all values)
private long	total Total (Sum of all values)

Fields inherited from class org.javasimon.callback.timeline.TimeRange

lastTimestamp

Constructor Summary

StopwatchTimeRange(long startTimestamp, long endTimestamp)
Main constructor.

Method Summary

void	addSplit(long timestampInMs, long durationInNs) Add stopwatch split information.
private double	computeMean() Compute mean/average using total and counter
long	getCounter()
long	getLast()
long	getMax()
Double	getMean() Compute mean/average.
long	getMin()
Double	getStandardDeviation() Compute standard deviation.
long	getTotal()
Double	getVariance() Compute variance.
protected StringBuilder	toStringBuilder(StringBuilder stringBuilder)

Methods inherited from class org.javasimon.callback.timeline.TimeRange

containsTimestamp, getEndTimestamp, getStartTimestamp, toString

Methods inherited from class java.lang.Object

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

Field Detail

last

private long last

Last value

min

private long min

Minimum

max

private long max

Minimum

total

private long total

Total (Sum of all values)

squareTotal

private long squareTotal

(Sum of square of all values)

counter

private long counter

Counter (Number of values)

Constructor Detail

StopwatchTimeRange

public StopwatchTimeRange(long startTimestamp,
                          long endTimestamp)

Main constructor.

Method Detail

addSplit

public void addSplit(long timestampInMs,
                     long durationInNs)

Add stopwatch split information.

Parameters:

timestampInMs - When the split started, expressed in milliseconds

durationInNs - How long the split was, expressed in nanoseconds

getLast

public long getLast()

getMin

public long getMin()

getMax

public long getMax()

getTotal

public long getTotal()

getCounter

public long getCounter()

computeMean

private double computeMean()

Compute mean/average using total and counter

getMean

public Double getMean()

Compute mean/average.

Returns:

mean/average duration.

getVariance

public Double getVariance()

Compute variance.

Returns:

variance

getStandardDeviation

public Double getStandardDeviation()

Compute standard deviation.

Returns:

Standard deviation

toStringBuilder

protected StringBuilder toStringBuilder(StringBuilder stringBuilder)

Overrides:

toStringBuilder in class TimeRange