org.apache.bookkeeper.stats.prometheus

Class LongAdderCounter

java.lang.Object

org.apache.bookkeeper.stats.prometheus.LongAdderCounter

All Implemented Interfaces:

Counter

public class LongAdderCounter
extends java.lang.Object
implements Counter

Counter implementation based on LongAdder.

LongAdder keeps a counter per-thread and then aggregates to get the result, in order to avoid contention between multiple threads.

Constructor Summary

Constructors

Constructor and Description
LongAdderCounter()

Method Summary

Modifier and Type	Method and Description
void	add(long delta) Add delta to the value associated with this stat.
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.

Methods inherited from class java.lang.Object

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

Constructor Detail

LongAdderCounter

public LongAdderCounter()

Method Detail

clear

public void clear()

Description copied from interface: Counter

Clear this stat.

Specified by:

clear in interface Counter

inc

public void inc()

Description copied from interface: Counter

Increment the value associated with this stat.

Specified by:

inc in interface Counter

dec

public void dec()

Description copied from interface: Counter

Decrement the value associated with this stat.

Specified by:

dec in interface Counter

add

public void add(long delta)

Description copied from interface: Counter

Add delta to the value associated with this stat.

Specified by:

add in interface Counter

get

public java.lang.Long get()

Description copied from interface: Counter

Get the value associated with this stat.

Specified by:

get in interface Counter