org.apache.commons.pool2.impl

Class BaseGenericObjectPool.StatsStore

java.lang.Object

org.apache.commons.pool2.impl.BaseGenericObjectPool.StatsStore

Enclosing class:

BaseGenericObjectPool<T>

private class BaseGenericObjectPool.StatsStore
extends java.lang.Object

Maintains a cache of values for a single metric and reports statistics on the cached values.

Field Summary

Fields

Modifier and Type	Field and Description
private int	index
private int	size
private java.util.concurrent.atomic.AtomicLong[]	values

Constructor Summary

Constructors

Constructor and Description
StatsStore(int size) Create a StatsStore with the given cache size.

Method Summary

Modifier and Type	Method and Description
void	add(long value) Adds a value to the cache.
long	getMean() Returns the mean of the cached values.

Methods inherited from class java.lang.Object

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

Field Detail

values

private final java.util.concurrent.atomic.AtomicLong[] values

size

private final int size

index

private int index

Constructor Detail

StatsStore

public StatsStore(int size)

Create a StatsStore with the given cache size.

Parameters:

size - number of values to maintain in the cache.

Method Detail

add

public void add(long value)

Adds a value to the cache. If the cache is full, one of the existing values is replaced by the new value.

Parameters:

value - new value to add to the cache.

getMean

public long getMean()

Returns the mean of the cached values.

Returns:

the mean of the cache, truncated to long