Package io.datarouter.bytes.kvfile

Class KvFileCompactorFileCache

java.lang.Object

io.datarouter.bytes.kvfile.KvFileCompactorFileCache

public class KvFileCompactorFileCache
extends Object

Keeps track of files during a compaction. Can be enhanced with different selection strategies for efficient compaction.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final record	KvFileCompactorFileCache.KvFileMergePlan

Constructor Summary

Constructors

Constructor	Description
KvFileCompactorFileCache(int targetNumFiles, boolean prune, ByteLength readBufferSize, int memoryFanIn, int streamingFanIn, List<KvFileNameAndSize> files)

Method Summary

Modifier and Type	Method	Description
void	add(KvFileNameAndSize file)
Optional<KvFileCompactorFileCache.KvFileMergePlan>	findNextMergePlan()
boolean	hasMoreToMerge()
int	numFiles()
void	remove(KvFileNameAndSize file)
ByteLength	totalSize()

Methods inherited from class java.lang.Object

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

Constructor Details

KvFileCompactorFileCache

public KvFileCompactorFileCache(int targetNumFiles,
 boolean prune,
 ByteLength readBufferSize,
 int memoryFanIn,
 int streamingFanIn,
 List<KvFileNameAndSize> files)

Method Details

numFiles

public int numFiles()

totalSize

public ByteLength totalSize()

add

public void add(KvFileNameAndSize file)

remove

public void remove(KvFileNameAndSize file)

hasMoreToMerge

public boolean hasMoreToMerge()

findNextMergePlan

public Optional<KvFileCompactorFileCache.KvFileMergePlan> findNextMergePlan()