org.terracotta.cache.evictor
Interface CapacityEvictionPolicyData

All Superinterfaces:

Comparable<CapacityEvictionPolicyData>

All Known Implementing Classes:

LFUCapacityEvictionPolicyData, LRUCapacityEvictionPolicyData, NullCapacityEvictionPolicyData

public interface CapacityEvictionPolicyData
extends Comparable<CapacityEvictionPolicyData>

A datum attached to an entry providing comparison and storage of capacity eviction data.

It is important that implementations of CapacityEvictionPolicyData#compareTo(CapacityEvictionPolicyData) safely handle comparison with a null object. Null objects represent untouched values, hence a.compareTo(null) should under a conventional eviction policy return a positive value (untouched values should always be evicted first).

Author:

abhi.sanoujam

Nested Class Summary

static interface

CapacityEvictionPolicyData.Factory

Method Summary

void	markUsed(int usedAtTime)

Methods inherited from interface java.lang.Comparable

compareTo

Method Detail

markUsed

void markUsed(int usedAtTime)