org.HdrHistogram

Class LinearIterator

java.lang.Object

org.HdrHistogram.AbstractHistogramIterator

org.HdrHistogram.LinearIterator

All Implemented Interfaces:

java.util.Iterator<HistogramIterationValue>

public class LinearIterator
extends AbstractHistogramIterator
implements java.util.Iterator<HistogramIterationValue>

Used for iterating through histogram values in linear steps. The iteration is performed in steps of valueUnitsPerBucket in size, terminating when all recorded histogram values are exhausted. Note that each iteration "bucket" includes values up to and including the next bucket boundary value.

Field Summary

Fields

Modifier and Type	Field and Description
private long	currentStepHighestValueReportingLevel
private long	currentStepLowestValueReportingLevel
private long	valueUnitsPerBucket

Fields inherited from class org.HdrHistogram.AbstractHistogramIterator

arrayTotalCount, countAtThisValue, currentIndex, currentIterationValue, currentValueAtIndex, histogram, nextValueAtIndex, prevValueIteratedTo, totalCountToCurrentIndex, totalCountToPrevIndex, totalValueToCurrentIndex

Constructor Summary

Constructors

Constructor and Description
LinearIterator(AbstractHistogram histogram, long valueUnitsPerBucket)

Method Summary

Modifier and Type	Method and Description
(package private) long	getValueIteratedTo()
boolean	hasNext() Returns true if the iteration has more elements.
(package private) void	incrementIterationLevel()
(package private) boolean	reachedIterationLevel()
private void	reset(AbstractHistogram histogram, long valueUnitsPerBucket)
void	reset(long valueUnitsPerBucket) Reset iterator for re-use in a fresh iteration over the same histogram data set.

Methods inherited from class org.HdrHistogram.AbstractHistogramIterator

getPercentileIteratedFrom, getPercentileIteratedTo, incrementSubBucket, next, remove, resetIterator

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining, next, remove

Field Detail

valueUnitsPerBucket

private long valueUnitsPerBucket

currentStepHighestValueReportingLevel

private long currentStepHighestValueReportingLevel

currentStepLowestValueReportingLevel

private long currentStepLowestValueReportingLevel

Constructor Detail

LinearIterator

public LinearIterator(AbstractHistogram histogram,
                      long valueUnitsPerBucket)

Parameters:

histogram - The histogram this iterator will operate on

valueUnitsPerBucket - The size (in value units) of each bucket iteration.

Method Detail

reset

public void reset(long valueUnitsPerBucket)

Reset iterator for re-use in a fresh iteration over the same histogram data set.

Parameters:

valueUnitsPerBucket - The size (in value units) of each bucket iteration.

reset

private void reset(AbstractHistogram histogram,
                   long valueUnitsPerBucket)

hasNext

public boolean hasNext()

Description copied from class: AbstractHistogramIterator

Returns true if the iteration has more elements. (In other words, returns true if next would return an element rather than throwing an exception.)

Specified by:

hasNext in interface java.util.Iterator<HistogramIterationValue>

Overrides:

hasNext in class AbstractHistogramIterator

Returns:

true if the iterator has more elements.

incrementIterationLevel

void incrementIterationLevel()

Specified by:

incrementIterationLevel in class AbstractHistogramIterator

getValueIteratedTo

long getValueIteratedTo()

Overrides:

getValueIteratedTo in class AbstractHistogramIterator

reachedIterationLevel

boolean reachedIterationLevel()

Specified by:

reachedIterationLevel in class AbstractHistogramIterator

Returns:

true if the current position's data should be emitted by the iterator