Package com.db4o.defragment

Interface DefragmentServices

All Superinterfaces:

IDMapping

All Known Implementing Classes:

DefragmentServicesImpl

public interface DefragmentServices
extends IDMapping

Encapsulates services involving source and target database files during defragmenting.

Method Summary

Modifier and Type	Method	Description
Slot	allocateTargetSlot(int targetLength)
ClassMetadata	classMetadataForId(int id)
void	commitIds()
int	mappedID(int id)
IdMapping	mapping()
void	registerBTreeIDs(BTree tree, IDMappingCollector collector)
void	registerUnindexed(int id)
int	sourceAddressByID(int sourceID)
ByteArrayBuffer	sourceBufferByAddress(int address, int length)
ByteArrayBuffer	sourceBufferByID(int sourceID)
Transaction	systemTrans()
int	targetAddressByID(int sourceID)
ByteArrayBuffer	targetBufferByAddress(int address, int length)
int	targetNewId()
void	targetWriteBytes(ByteArrayBuffer targetPointerReader, int targetAddress)
void	targetWriteBytes(DefragmentContextImpl context, int targetAddress)
void	traverseAllIndexSlots(BTree tree, Visitor4 visitor4)
IdSource	unindexedIDs()

Methods inherited from interface com.db4o.internal.mapping.IDMapping

mapIDs, strictMappedID

Method Detail

sourceBufferByAddress

ByteArrayBuffer sourceBufferByAddress(int address,
                                      int length)
                               throws java.io.IOException

Throws:

java.io.IOException

targetBufferByAddress

ByteArrayBuffer targetBufferByAddress(int address,
                                      int length)
                               throws java.io.IOException

Throws:

java.io.IOException

sourceBufferByID

ByteArrayBuffer sourceBufferByID(int sourceID)

allocateTargetSlot

Slot allocateTargetSlot(int targetLength)

targetWriteBytes

void targetWriteBytes(ByteArrayBuffer targetPointerReader,
                      int targetAddress)

systemTrans

Transaction systemTrans()

targetWriteBytes

void targetWriteBytes(DefragmentContextImpl context,
                      int targetAddress)

traverseAllIndexSlots

void traverseAllIndexSlots(BTree tree,
                           Visitor4 visitor4)

registerBTreeIDs

void registerBTreeIDs(BTree tree,
                      IDMappingCollector collector)

classMetadataForId

ClassMetadata classMetadataForId(int id)

mappedID

int mappedID(int id)

registerUnindexed

void registerUnindexed(int id)

unindexedIDs

IdSource unindexedIDs()

sourceAddressByID

int sourceAddressByID(int sourceID)

targetAddressByID

int targetAddressByID(int sourceID)

targetNewId

int targetNewId()

mapping

IdMapping mapping()

commitIds

void commitIds()