Package one.microstream.cache

Interface EvictionPolicy

All Known Implementing Classes:

EvictionPolicy.Sampling, EvictionPolicy.Searching

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface EvictionPolicy

Function to pick the entries which should be evicted.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	EvictionPolicy.Sampling
static class	EvictionPolicy.Searching

Method Summary

Modifier and Type	Method	Description
static EvictionPolicy	BiggestObjects(int elementCount, long maxCacheSize)
static EvictionPolicy	BiggestObjects(_intReference elementCount, Predicate<CacheTable> evictionNecessity, Predicate<KeyValue<Object,CachedValue>> evictionPermission)
static Comparator<KeyValue<Object,CachedValue>>	BiggestObjectsComparator()
static int	DefaultElementCount()
static EvictionPolicy	FirstInFirstOut(int elementCount, long maxCacheSize)
static EvictionPolicy	FirstInFirstOut(_intReference elementCount, Predicate<CacheTable> evictionNecessity, Predicate<KeyValue<Object,CachedValue>> evictionPermission)
static EvictionPolicy	LeastFrequentlyUsed(int elementCount, long maxCacheSize)
static EvictionPolicy	LeastFrequentlyUsed(long maxCacheSize)
static EvictionPolicy	LeastFrequentlyUsed(_intReference elementCount, Predicate<CacheTable> evictionNecessity, Predicate<KeyValue<Object,CachedValue>> evictionPermission)
static Comparator<KeyValue<Object,CachedValue>>	LeastFrequentlyUsedComparator()
static EvictionPolicy	LeastRecentlyUsed(int elementCount, long maxCacheSize)
static EvictionPolicy	LeastRecentlyUsed(long maxCacheSize)
static EvictionPolicy	LeastRecentlyUsed(_intReference elementCount, Predicate<CacheTable> evictionNecessity, Predicate<KeyValue<Object,CachedValue>> evictionPermission)
static Comparator<KeyValue<Object,CachedValue>>	LeastRecentlyUsedComparator()
static Predicate<CacheTable>	MaxCacheSizePredicate(long maxCacheSize)
Iterable<KeyValue<Object,CachedValue>>	pickEntriesToEvict(CacheTable cacheTable)	Select the entries which should be evicted.
static EvictionPolicy	Sampling(_intReference elementCount, Predicate<CacheTable> evictionNecessity, Predicate<KeyValue<Object,CachedValue>> evictionPermission, Comparator<KeyValue<Object,CachedValue>> comparator)
static EvictionPolicy	Searching(_intReference elementCount, Predicate<CacheTable> evictionNecessity, Predicate<KeyValue<Object,CachedValue>> evictionPermission)

Method Details

pickEntriesToEvict

Iterable<KeyValue<Object,CachedValue>> pickEntriesToEvict(CacheTable cacheTable)

Select the entries which should be evicted.

MaxCacheSizePredicate

static Predicate<CacheTable> MaxCacheSizePredicate(long maxCacheSize)

LeastRecentlyUsedComparator

static Comparator<KeyValue<Object,CachedValue>> LeastRecentlyUsedComparator()

LeastFrequentlyUsedComparator

static Comparator<KeyValue<Object,CachedValue>> LeastFrequentlyUsedComparator()

BiggestObjectsComparator

static Comparator<KeyValue<Object,CachedValue>> BiggestObjectsComparator()

DefaultElementCount

static int DefaultElementCount()

LeastRecentlyUsed

static EvictionPolicy LeastRecentlyUsed(long maxCacheSize)

LeastRecentlyUsed

static EvictionPolicy LeastRecentlyUsed(int elementCount, long maxCacheSize)

LeastRecentlyUsed

static EvictionPolicy LeastRecentlyUsed(_intReference elementCount, Predicate<CacheTable> evictionNecessity, Predicate<KeyValue<Object,CachedValue>> evictionPermission)

LeastFrequentlyUsed

static EvictionPolicy LeastFrequentlyUsed(long maxCacheSize)

LeastFrequentlyUsed

static EvictionPolicy LeastFrequentlyUsed(int elementCount, long maxCacheSize)

LeastFrequentlyUsed

static EvictionPolicy LeastFrequentlyUsed(_intReference elementCount, Predicate<CacheTable> evictionNecessity, Predicate<KeyValue<Object,CachedValue>> evictionPermission)

BiggestObjects

static EvictionPolicy BiggestObjects(int elementCount, long maxCacheSize)

BiggestObjects

static EvictionPolicy BiggestObjects(_intReference elementCount, Predicate<CacheTable> evictionNecessity, Predicate<KeyValue<Object,CachedValue>> evictionPermission)

FirstInFirstOut

static EvictionPolicy FirstInFirstOut(int elementCount, long maxCacheSize)

FirstInFirstOut

static EvictionPolicy FirstInFirstOut(_intReference elementCount, Predicate<CacheTable> evictionNecessity, Predicate<KeyValue<Object,CachedValue>> evictionPermission)

Sampling

static EvictionPolicy Sampling(_intReference elementCount, Predicate<CacheTable> evictionNecessity, Predicate<KeyValue<Object,CachedValue>> evictionPermission, Comparator<KeyValue<Object,CachedValue>> comparator)

Searching

static EvictionPolicy Searching(_intReference elementCount, Predicate<CacheTable> evictionNecessity, Predicate<KeyValue<Object,CachedValue>> evictionPermission)