com.hazelcast.spi.hotrestart.impl.gc.chunk

Class StableChunk

java.lang.Object

com.hazelcast.spi.hotrestart.impl.gc.chunk.Chunk

com.hazelcast.spi.hotrestart.impl.gc.chunk.StableChunk

All Implemented Interfaces:

com.hazelcast.nio.Disposable

Direct Known Subclasses:

StableTombChunk, StableValChunk

public abstract class StableChunk
extends Chunk

Represents a fully constructed chunk whose on-disk contents are stable (immutable). The only kind of update is the retirement of a live record. Not associated with any filesystem resources.

Field Summary

Fields

Modifier and Type	Field and Description
static Comparator<StableChunk>	BY_BENEFIT_COST_DESC

Fields inherited from class com.hazelcast.spi.hotrestart.impl.gc.chunk.Chunk

ACTIVE_FNAME_SUFFIX, FNAME_SUFFIX, garbage, liveRecordCount, records, seq, SURVIVOR_FNAME_SUFFIX, SYSPROP_TOMB_CHUNK_SIZE_LIMIT, SYSPROP_VAL_CHUNK_SIZE_LIMIT, TOMB_BASEDIR, TOMB_SIZE_LIMIT_DEFAULT, VAL_BASEDIR, VAL_SIZE_LIMIT_DEFAULT

Method Summary

Modifier and Type	Method and Description
double	cachedBenefitToCost()
long	size()

Methods inherited from class com.hazelcast.spi.hotrestart.impl.gc.chunk.Chunk

base, dispose, fnameSuffix, needsDismissing, needsDismissing, retire, retire, tombChunkSizeLimit, toString, valChunkSizeLimit

Methods inherited from class java.lang.Object

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

Field Detail

BY_BENEFIT_COST_DESC

public static final Comparator<StableChunk> BY_BENEFIT_COST_DESC

Method Detail

size

public final long size()

Specified by:

size in class Chunk

Returns:

size in bytes of the chunk file

cachedBenefitToCost

public final double cachedBenefitToCost()

Returns:

the cached value of the Cost/Benefit factor for this chunk.