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

Interface ActiveChunk

All Superinterfaces:

com.hazelcast.nio.Disposable

All Known Implementing Classes:

ActiveValChunk, WriteThroughTombChunk

public interface ActiveChunk
extends com.hazelcast.nio.Disposable

Represents a currently active chunk. The mutator adds records to this chunk. Associated with an open file.

Method Summary

Modifier and Type	Method and Description
boolean	addStep1(long recordSeq, long keyPrefix, byte[] keyBytes, byte[] valueBytes) Writes a record to the chunk file and updates the size property on this object.
void	close()
void	flagForFsyncOnClose(boolean needsFsync) As soon as a record which "needs fsync" is added to the chunk, it must not be closed without fsync-ing it first.
void	fsync() Performs the fsync operation on the open chunk file.
long	size()
StableChunk	toStableChunk() Converts this active chunk into a stable chunk.

Methods inherited from interface com.hazelcast.nio.Disposable

dispose

Method Detail

addStep1

boolean addStep1(long recordSeq,
                 long keyPrefix,
                 byte[] keyBytes,
                 byte[] valueBytes)

Writes a record to the chunk file and updates the size property on this object. May be called on the mutator thread.

Returns:

true if the chunk is now full.

size

long size()

Returns:

size in bytes of the chunk file

flagForFsyncOnClose

void flagForFsyncOnClose(boolean needsFsync)

As soon as a record which "needs fsync" is added to the chunk, it must not be closed without fsync-ing it first. Calling this method with true signals that need.

Parameters:

needsFsync - true if the chunk will need an fsync before closing.

fsync

void fsync()

Performs the fsync operation on the open chunk file.

close

void close()

toStableChunk

StableChunk toStableChunk()

Converts this active chunk into a stable chunk.