com.hazelcast.internal.nearcache.impl.store

Class HeapNearCacheRecordMap<K,V extends NearCacheRecord>

java.lang.Object

java.util.AbstractMap<K,V>

com.hazelcast.util.ConcurrentReferenceHashMap<K,V>

com.hazelcast.util.SampleableConcurrentHashMap<K,V>

com.hazelcast.internal.nearcache.impl.store.HeapNearCacheRecordMap<K,V>

All Implemented Interfaces:

EvictableStore<K,V>, SampleableEvictableStore<K,V>, NearCacheRecordMap<K,V>, SampleableNearCacheRecordMap<K,V>, IConcurrentMap<K,V>, Serializable, ConcurrentMap<K,V>, Map<K,V>

public class HeapNearCacheRecordMap<K,V extends NearCacheRecord>
extends SampleableConcurrentHashMap<K,V>
implements SampleableNearCacheRecordMap<K,V>

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	HeapNearCacheRecordMap.NearCacheEvictableSamplingEntry

Nested classes/interfaces inherited from class com.hazelcast.util.SampleableConcurrentHashMap

SampleableConcurrentHashMap.SamplingEntry<K,V>

Nested classes/interfaces inherited from class com.hazelcast.util.ConcurrentReferenceHashMap

ConcurrentReferenceHashMap.Option, ConcurrentReferenceHashMap.ReferenceType, ConcurrentReferenceHashMap.SimpleEntry<K,V>, ConcurrentReferenceHashMap.WriteThroughEntry

Nested classes/interfaces inherited from class java.util.AbstractMap

AbstractMap.SimpleImmutableEntry<K,V>

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Constructor Summary

Constructors

Constructor and Description
HeapNearCacheRecordMap(SerializationService serializationService, int initialCapacity)

Method Summary

Modifier and Type	Method and Description
protected <E extends SampleableConcurrentHashMap.SamplingEntry> E	createSamplingEntry(K key, V value)
<C extends EvictionCandidate<K,V>> int	evict(Iterable<C> evictionCandidates, EvictionListener<K,V> evictionListener) The evict method is called by the EvictionStrategy to eventually evict, by the policy, selected candidates from the internal data structures.
Iterable<HeapNearCacheRecordMap.NearCacheEvictableSamplingEntry>	sample(int sampleCount) The sample method is used to sample a number of entries (defined by the samples parameter) from the internal data structure.

Methods inherited from class com.hazelcast.util.SampleableConcurrentHashMap

fetchEntries, fetchKeys, getRandomSamples, isValidForFetching, isValidForSampling

Methods inherited from class com.hazelcast.util.ConcurrentReferenceHashMap

applyIfAbsent, applyIfPresent, clear, contains, containsKey, containsValue, elements, entrySet, get, isEmpty, keys, keySet, purgeStaleEntries, put, putAll, putIfAbsent, remove, remove, replace, replace, size, values

Methods inherited from class java.util.AbstractMap

clone, equals, hashCode, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.concurrent.ConcurrentMap

compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

Methods inherited from interface java.util.Map

clear, containsKey, containsValue, entrySet, equals, get, hashCode, isEmpty, keySet, put, putAll, remove, size, values

Constructor Detail

HeapNearCacheRecordMap

public HeapNearCacheRecordMap(SerializationService serializationService,
                              int initialCapacity)

Method Detail

createSamplingEntry

protected <E extends SampleableConcurrentHashMap.SamplingEntry> E createSamplingEntry(K key,
                                                                                      V value)

Overrides:

createSamplingEntry in class SampleableConcurrentHashMap<K,V extends NearCacheRecord>

evict

public <C extends EvictionCandidate<K,V>> int evict(Iterable<C> evictionCandidates,
                                                    EvictionListener<K,V> evictionListener)

Description copied from interface: EvictableStore

The evict method is called by the EvictionStrategy to eventually evict, by the policy, selected candidates from the internal data structures.

Specified by:

evict in interface EvictableStore<K,V extends NearCacheRecord>

Parameters:

evictionCandidates - Multiple EvictionCandidate to be evicted

evictionListener - EvictionListener to listen evicted entries

Returns:

evicted entry count

sample

public Iterable<HeapNearCacheRecordMap.NearCacheEvictableSamplingEntry> sample(int sampleCount)

Description copied from interface: SampleableEvictableStore

The sample method is used to sample a number of entries (defined by the samples parameter) from the internal data structure. This method should be executed in a constant time to deliver predictable timing results of the eviction system.

Specified by:

sample in interface SampleableEvictableStore<K,V extends NearCacheRecord>

Parameters:

sampleCount - Entry count to be sampled

Returns:

Multiple EvictionCandidate to be evicted