org.apache.kafka.common.metrics.stats

Interface Histogram.BinScheme

All Known Implementing Classes:

Histogram.ConstantBinScheme, Histogram.LinearBinScheme

Enclosing class:

Histogram

public static interface Histogram.BinScheme

An algorithm for determining the bin in which a value is to be placed as well as calculating the upper end of each bin.

Method Summary

Modifier and Type	Method and Description
int	bins() Get the number of bins.
double	fromBin(int bin) Determine the value at the upper range of the specified bin.
int	toBin(double value) Determine the 0-based bin number in which the supplied value should be placed.

Method Detail

bins

int bins()

Get the number of bins.

Returns:

the number of bins

toBin

int toBin(double value)

Determine the 0-based bin number in which the supplied value should be placed.

Parameters:

value - the value

Returns:

the 0-based index of the bin

fromBin

double fromBin(int bin)

Determine the value at the upper range of the specified bin.

Parameters:

bin - the 0-based bin number

Returns:

the value at the upper end of the bin; or negative infinity if the bin number is negative or positive infinity if the 0-based bin number is greater than or equal to the number of bins.