com.hazelcast.map.impl.eviction

Class EvictorImpl

java.lang.Object

com.hazelcast.map.impl.eviction.EvictorImpl

All Implemented Interfaces:

Evictor

public class EvictorImpl
extends Object
implements Evictor

Evictor helper methods.

Field Summary

Fields

Modifier and Type	Field and Description
protected EvictionChecker	evictionChecker
protected MapEvictionPolicy	mapEvictionPolicy
protected IPartitionService	partitionService

Fields inherited from interface com.hazelcast.map.impl.eviction.Evictor

DEFAULT_SAMPLE_COUNT, NULL_EVICTOR, SAMPLE_COUNT, SYSTEM_PROPERTY_SAMPLE_COUNT

Constructor Summary

Constructors

Constructor and Description
EvictorImpl(MapEvictionPolicy mapEvictionPolicy, EvictionChecker evictionChecker, IPartitionService partitionService)

Method Summary

Modifier and Type	Method and Description
boolean	checkEvictable(RecordStore recordStore) Check whether the supplied record-store needs eviction.
void	evict(RecordStore recordStore, Data excludedKey) Evict supplied record-store.
protected static long	getNow()
protected Record	getRecordFromEntryView(EntryView selectedEntry)
protected Iterable<EntryView>	getSamples(RecordStore recordStore)
protected boolean	isBackup(RecordStore recordStore)

Methods inherited from class java.lang.Object

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

Field Detail

evictionChecker

protected final EvictionChecker evictionChecker

partitionService

protected final IPartitionService partitionService

mapEvictionPolicy

protected final MapEvictionPolicy mapEvictionPolicy

Constructor Detail

EvictorImpl

public EvictorImpl(MapEvictionPolicy mapEvictionPolicy,
                   EvictionChecker evictionChecker,
                   IPartitionService partitionService)

Method Detail

evict

public void evict(RecordStore recordStore,
                  Data excludedKey)

Description copied from interface: Evictor

Evict supplied record-store.

Specified by:

evict in interface Evictor

Parameters:

recordStore - the recordStore

excludedKey - this key has lowest priority to be selected for eviction and it is nullable.

checkEvictable

public boolean checkEvictable(RecordStore recordStore)

Description copied from interface: Evictor

Check whether the supplied record-store needs eviction.

Specified by:

checkEvictable in interface Evictor

Parameters:

recordStore - the recordStore

Returns:

true if eviction is required, false otherwise.

getRecordFromEntryView

protected Record getRecordFromEntryView(EntryView selectedEntry)

isBackup

protected boolean isBackup(RecordStore recordStore)

getSamples

protected Iterable<EntryView> getSamples(RecordStore recordStore)

getNow

protected static long getNow()