com.hazelcast.cache.impl.eviction.impl.evaluator
Class AbstractEvictionPolicyEvaluator<A,E extends Evictable>

java.lang.Object
  com.hazelcast.cache.impl.eviction.impl.evaluator.AbstractEvictionPolicyEvaluator<A,E>

All Implemented Interfaces:

EvictionPolicyEvaluator<A,E>

Direct Known Subclasses:

LFUEvictionPolicyEvaluator, LRUEvictionPolicyEvaluator

public abstract class AbstractEvictionPolicyEvaluator<A,E extends Evictable>
extends Object
implements EvictionPolicyEvaluator<A,E>

Base class for evaluation implementations of EvictionPolicy.

Constructor Summary

AbstractEvictionPolicyEvaluator()

Method Summary

<C extends EvictionCandidate<A,E>> Iterable<C>	evaluate(Iterable<C> evictionCandidates) The evaluate method implements the EvictionPolicy rule on the given input set of candidates.
protected abstract Evictable	selectEvictableAsPolicy(Evictable current, Evictable candidate) Compares two evictable candidates and selects one as EvictionPolicy rule.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractEvictionPolicyEvaluator

public AbstractEvictionPolicyEvaluator()

Method Detail

selectEvictableAsPolicy

protected abstract Evictable selectEvictableAsPolicy(Evictable current,
                                                     Evictable candidate)

Compares two evictable candidates and selects one as EvictionPolicy rule.

Parameters:

current - Currently selected evictable candidate

candidate - Evictable candidate to compare with current one

Returns:

the selected evictable candidate

evaluate

public <C extends EvictionCandidate<A,E>> Iterable<C> evaluate(Iterable<C> evictionCandidates)

The evaluate method implements the EvictionPolicy rule on the given input set of candidates.

Specified by:

evaluate in interface EvictionPolicyEvaluator<A,E extends Evictable>

Parameters:

evictionCandidates - Multiple EvictionCandidate to be evicted

Returns:

multiple EvictionCandidate these are available to be evicted