org.apache.cassandra.utils

Class StreamingHistogram.StreamingHistogramBuilder

java.lang.Object

org.apache.cassandra.utils.StreamingHistogram.StreamingHistogramBuilder

Enclosing class:

StreamingHistogram

public static class StreamingHistogram.StreamingHistogramBuilder
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
StreamingHistogramBuilder(int maxBinSize, int maxSpoolSize, int roundSeconds) Creates a new histogram with max bin size of maxBinSize

Method Summary

Modifier and Type	Method and Description
StreamingHistogram	build()
void	flushHistogram() Drain the temporary spool into the final bins
void	merge(StreamingHistogram other) Merges given histogram with this histogram.
void	update(double p) Adds new point p to this histogram.
void	update(double p, long m) Adds new point p with value m to this histogram.

Methods inherited from class java.lang.Object

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

Constructor Detail

StreamingHistogramBuilder

public StreamingHistogramBuilder(int maxBinSize,
                                 int maxSpoolSize,
                                 int roundSeconds)

Creates a new histogram with max bin size of maxBinSize

Parameters:

maxBinSize - maximum number of bins this histogram can have

Method Detail

build

public StreamingHistogram build()

update

public void update(double p)

Adds new point p to this histogram.

Parameters:

p -

update

public void update(double p,
                   long m)

Adds new point p with value m to this histogram.

Parameters:

p -

m -

flushHistogram

public void flushHistogram()

Drain the temporary spool into the final bins

merge

public void merge(StreamingHistogram other)

Merges given histogram with this histogram.

Parameters:

other - histogram to merge