com.hazelcast.spi.hotrestart.impl.gc.record

Class RecordOffHeap

java.lang.Object

com.hazelcast.spi.hotrestart.impl.gc.record.Record

com.hazelcast.spi.hotrestart.impl.gc.record.RecordOffHeap

public final class RecordOffHeap
extends Record

Specialization of Record as a Flyweight object around a pointer to a native-memory record structure.

Field Summary

Fields

Modifier and Type	Field and Description
static int	TOMBSTONE_SIZE
static int	VALUE_RECORD_SIZE

Fields inherited from class com.hazelcast.spi.hotrestart.impl.gc.record.Record

TOMB_HEADER_SIZE, VAL_HEADER_SIZE

Constructor Summary

Constructors

Constructor and Description
RecordOffHeap()

Method Summary

Modifier and Type	Method and Description
int	additionalInt()
int	decrementGarbageCount() Decrements this record's garbage count.
void	incrementGarbageCount() Increments this record's garbage count.
long	keyPrefix(KeyHandle ignored)
void	negateSeq() Negates the value of the rawSeq property.
long	rawSeqValue()
int	rawSizeValue()
void	setAdditionalInt(int value) Sets the raw "additional int" property on this record.
void	setRawSeqSize(long rawSeqValue, int rawSizeValue) Sets the raw "seq" and "size" values on this record.

Methods inherited from class com.hazelcast.spi.hotrestart.impl.gc.record.Record

deadOrAliveSeq, deadSeq, filePosition, garbageCount, isAlive, isTombstone, liveSeq, payloadSize, positionInUnitsOfBufsize, retire, setFilePosition, setGarbageCount, size, size, toRawSizeValue, toString, update

Methods inherited from class java.lang.Object

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

Field Detail

VALUE_RECORD_SIZE

public static final int VALUE_RECORD_SIZE

See Also:

Constant Field Values

TOMBSTONE_SIZE

public static final int TOMBSTONE_SIZE

See Also:

Constant Field Values

Constructor Detail

RecordOffHeap

public RecordOffHeap()

Method Detail

rawSeqValue

public long rawSeqValue()

Specified by:

rawSeqValue in class Record

Returns:

the value of the raw, low-level "seq" property which encodes both the record's sequence number and whether it's alive. If zero, then this object does not relate to any live record, but garbageCount keeps tracking the number of garbage records on the same key in the same chunk.

rawSizeValue

public int rawSizeValue()

Specified by:

rawSizeValue in class Record

Returns:

the raw, low-level "size" property which encodes both the size of the record and whether it's a tombstone.

keyPrefix

public long keyPrefix(KeyHandle ignored)

Specified by:

keyPrefix in class Record

Parameters:

ignored - the key handle associated with this record

Returns:

the key prefix associated with this record

additionalInt

public int additionalInt()

Specified by:

additionalInt in class Record

Returns:

the "additional int" property which, for a value record, denotes the garbage count and for a tombstone denotes file position.

setAdditionalInt

public void setAdditionalInt(int value)

Description copied from class: Record

Sets the raw "additional int" property on this record.

Specified by:

setAdditionalInt in class Record

See Also:

Record.additionalInt()

negateSeq

public void negateSeq()

Description copied from class: Record

Negates the value of the rawSeq property.

Specified by:

negateSeq in class Record

decrementGarbageCount

public int decrementGarbageCount()

Description copied from class: Record

Decrements this record's garbage count.

Specified by:

decrementGarbageCount in class Record

incrementGarbageCount

public void incrementGarbageCount()

Description copied from class: Record

Increments this record's garbage count.

Specified by:

incrementGarbageCount in class Record

setRawSeqSize

public void setRawSeqSize(long rawSeqValue,
                          int rawSizeValue)

Description copied from class: Record

Sets the raw "seq" and "size" values on this record.

Specified by:

setRawSeqSize in class Record

See Also:

Record.rawSeqValue(), Record.rawSizeValue()