Package one.microstream.storage.types

Interface StorageDataFile<I extends StorageEntityCacheItem<I>>

All Superinterfaces:

StorageChannelFile, StorageFile, StorageHashChannelPart, StorageInventoryFile, StorageLockedFile, StorageNumberedFile

All Known Implementing Classes:

StorageDataFile.Default

public interface StorageDataFile<I extends StorageEntityCacheItem<I>>
extends StorageInventoryFile

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	StorageDataFile.Default

Method Summary

Modifier and Type	Method	Description
void	appendEntry(I entry)
double	dataFillRatio()
long	dataLength()
long	exportTo(StorageLockedFile file)
long	exportTo(StorageLockedFile file, long sourceOffset, long length)
boolean	hasSingleEntity()	Querying method to check if a storage file consists of only one singular live entity.
boolean	isHeadFile()
void	loadEntityData(I entity, long length, long cacheChange)
void	prependEntry(I entry)
void	remove(StorageEntity.Default entity)
long	totalLength()

Methods inherited from interface one.microstream.storage.types.StorageFile

delete, exists, fileChannel, flush, identifier, isEmpty, isOpen, name, qualifier

Methods inherited from interface one.microstream.storage.types.StorageHashChannelPart

channelIndex

Methods inherited from interface one.microstream.storage.types.StorageInventoryFile

inventorize

Methods inherited from interface one.microstream.storage.types.StorageLockedFile

clearUsages, close, executeIfUnsued, hasUsers, length, registerUsage, tryClose, unregisterUsage, unregisterUsageClosing

Methods inherited from interface one.microstream.storage.types.StorageNumberedFile

number

Method Detail

prependEntry

void prependEntry(I entry)

appendEntry

void appendEntry(I entry)

remove

void remove(StorageEntity.Default entity)

loadEntityData

void loadEntityData(I entity,
                    long length,
                    long cacheChange)

totalLength

long totalLength()

dataLength

long dataLength()

dataFillRatio

double dataFillRatio()

exportTo

long exportTo(StorageLockedFile file)

exportTo

long exportTo(StorageLockedFile file,
              long sourceOffset,
              long length)

isHeadFile

boolean isHeadFile()

hasSingleEntity

boolean hasSingleEntity()

Querying method to check if a storage file consists of only one singular live entity. This is necessary to avoid dissolving files that are oversized because of one single oversized entity.

Returns:

true if the file containts exactely one live entity.