org.terracotta.statistics

Interface OperationStatistic<T extends Enum<T>>

All Superinterfaces:

OperationObserver<T>, SourceStatistic<ChainedOperationObserver<? super T>>

All Known Implementing Classes:

AbstractOperationStatistic, MappedOperationStatistic, StatisticMapper, ZeroOperationStatistic

public interface OperationStatistic<T extends Enum<T>>
extends OperationObserver<T>, SourceStatistic<ChainedOperationObserver<? super T>>

Author:

cdennis

Method Summary

Modifier and Type	Method and Description
long	count(T type) Return the count of operations with the given type.
default ValueStatistic<Long>	statistic(Set<T> results)
default ValueStatistic<Long>	statistic(T result) Return a ValueStatistic returning the count for the given result.
long	sum()
long	sum(Set<T> types)
Class<T>	type()

Methods inherited from interface org.terracotta.statistics.observer.OperationObserver

begin, end, end

Methods inherited from interface org.terracotta.statistics.SourceStatistic

addDerivedStatistic, removeDerivedStatistic

Method Detail

type

Class<T> type()

statistic

default ValueStatistic<Long> statistic(T result)

Return a ValueStatistic returning the count for the given result.

Parameters:

result - the result of interest

Returns:

a ValueStatistic instance

statistic

default ValueStatistic<Long> statistic(Set<T> results)

count

long count(T type)

Return the count of operations with the given type.

Parameters:

type - the result type

Returns:

the operation count

sum

long sum(Set<T> types)

sum

long sum()