Package net.sf.ehcache.store.cachingtier

Class PooledBasedBackEnd.PoolParticipant

java.lang.Object

net.sf.ehcache.store.cachingtier.PooledBasedBackEnd.PoolParticipant

All Implemented Interfaces:

PoolParticipant

Enclosing class:

PooledBasedBackEnd<K,V>

public static class PooledBasedBackEnd.PoolParticipant
extends java.lang.Object
implements PoolParticipant

A pool participant to use with this Backend

Constructor Summary

Constructors

Constructor	Description
PoolParticipant(PooledBasedBackEnd<java.lang.Object,java.lang.Object> pooledBasedBackEnd)	Creates a pool participant

Method Summary

Modifier and Type	Method	Description
boolean	evict(int count, long size)	Perform eviction to release resources
long	getApproximateCountSize()	Return the approximate size
float	getApproximateHitRate()	Return the approximate hit rate
float	getApproximateMissRate()	Return the approximate miss rate

Methods inherited from class java.lang.Object

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

Constructor Detail

PoolParticipant

public PoolParticipant(PooledBasedBackEnd<java.lang.Object,java.lang.Object> pooledBasedBackEnd)

Creates a pool participant

Parameters:

pooledBasedBackEnd - the backend this participant represents

Method Detail

evict

public boolean evict(int count,
                     long size)

Description copied from interface: PoolParticipant

Perform eviction to release resources

Specified by:

evict in interface PoolParticipant

Parameters:

count - the number of elements to evict

size - the size in bytes to free (hint)

Returns:

true if the requested number of elements could be evicted

getApproximateHitRate

public float getApproximateHitRate()

Description copied from interface: PoolParticipant

Return the approximate hit rate

Specified by:

getApproximateHitRate in interface PoolParticipant

Returns:

the approximate hit rate

getApproximateMissRate

public float getApproximateMissRate()

Description copied from interface: PoolParticipant

Return the approximate miss rate

Specified by:

getApproximateMissRate in interface PoolParticipant

Returns:

the approximate miss rate

getApproximateCountSize

public long getApproximateCountSize()

Description copied from interface: PoolParticipant

Return the approximate size

Specified by:

getApproximateCountSize in interface PoolParticipant

Returns:

the approximate size