org.apache.bookkeeper.stats

Interface Counter

All Known Implementing Classes:

NullStatsLogger.NullCounter

public interface Counter

Simple stats that require only increment and decrement functions on a Long. Metrics like the number of topics, persist queue size etc. should use this.

Method Summary

Modifier and Type	Method and Description
void	addCount(long delta) Add delta to the value associated with this stat.
void	addLatency(long eventLatency, java.util.concurrent.TimeUnit unit) An operation succeeded with the given eventLatency.
void	clear() Clear this stat.
void	dec() Decrement the value associated with this stat.
java.lang.Long	get() Get the value associated with this stat.
void	inc() Increment the value associated with this stat.

Method Detail

clear

void clear()

Clear this stat.

inc

void inc()

Increment the value associated with this stat.

dec

void dec()

Decrement the value associated with this stat.

addCount

void addCount(long delta)

Add delta to the value associated with this stat.

Parameters:

delta -

addLatency

void addLatency(long eventLatency,
                java.util.concurrent.TimeUnit unit)

An operation succeeded with the given eventLatency. Update stats to reflect the same

Parameters:

eventLatency - The event latency

unit -

get

java.lang.Long get()

Get the value associated with this stat.