com.hazelcast.map.impl.eviction

Interface Evictor

All Known Implementing Classes:

EvictorImpl

public interface Evictor

Evicts a RecordStore.

When the RecordStore needs to be evicted according to checkEvictable(com.hazelcast.map.impl.recordstore.RecordStore), Evictor removes records from RecordStore.

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_SAMPLE_COUNT
static Evictor	NULL_EVICTOR
static int	SAMPLE_COUNT
static String	SYSTEM_PROPERTY_SAMPLE_COUNT

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.

Field Detail

NULL_EVICTOR

static final Evictor NULL_EVICTOR

SYSTEM_PROPERTY_SAMPLE_COUNT

static final String SYSTEM_PROPERTY_SAMPLE_COUNT

See Also:

Constant Field Values

DEFAULT_SAMPLE_COUNT

static final int DEFAULT_SAMPLE_COUNT

See Also:

Constant Field Values

SAMPLE_COUNT

static final int SAMPLE_COUNT

Method Detail

evict

void evict(RecordStore recordStore,
           Data excludedKey)

Evict supplied record-store.

Parameters:

recordStore - the recordStore

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

checkEvictable

boolean checkEvictable(RecordStore recordStore)

Check whether the supplied record-store needs eviction.

Parameters:

recordStore - the recordStore

Returns:

true if eviction is required, false otherwise.