com.db4o.defragment

Class DefragmentServicesImpl

java.lang.Object

com.db4o.defragment.DefragmentServicesImpl

All Implemented Interfaces:

DefragmentServices, IDMapping

public class DefragmentServicesImpl
extends java.lang.Object
implements DefragmentServices

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DefragmentServicesImpl.DbSelector

Field Summary

Fields

Modifier and Type	Field and Description
static DefragmentServicesImpl.DbSelector	SOURCEDB
static DefragmentServicesImpl.DbSelector	TARGETDB

Constructor Summary

Constructors

Constructor and Description
DefragmentServicesImpl(DefragmentConfig defragConfig, DefragmentListener listener)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	accept(StoredClass klass)
Slot	allocateTargetSlot(int length)
int	blockSize()
ByteArrayBuffer	bufferByAddress(DefragmentServicesImpl.DbSelector selector, int address, int length)
ByteArrayBuffer	bufferByID(DefragmentServicesImpl.DbSelector selector, int id)
int	classIndexID(ClassMetadata classMetadata)
ClassMetadata	classMetadataForId(int id)
void	close()
void	commitIds()
void	copyIdentity()
int	databaseIdentityID(DefragmentServicesImpl.DbSelector selector)
void	defragIdToTimestampBtree()
void	mapIDs(int oldID, int newID, boolean isClassID)
int	mappedID(int id)
int	mappedID(int oldID, int defaultID)
IdMapping	mapping()
void	registerBTreeIDs(BTree btree, IDMappingCollector collector)
void	registerUnindexed(int id)
void	replaceClassMetadataRepository()
int	sourceAddressByID(int sourceID)
ByteArrayBuffer	sourceBufferByAddress(int address, int length)
ByteArrayBuffer	sourceBufferByID(int sourceID)
int	sourceClassCollectionID()
TypeHandler4	sourceHandler(int id)
int	sourceIdToTimestampIndexID()
ObjectHeader	sourceObjectHeader(ByteArrayBuffer buffer)
BTree	sourceUuidIndex()
int	sourceUuidIndexID()
StoredClass[]	storedClasses(DefragmentServicesImpl.DbSelector selector)
int	strictMappedID(int oldID)
LatinStringIO	stringIO()
Transaction	systemTrans()
int	targetAddressByID(int sourceID)
ByteArrayBuffer	targetBufferByAddress(int address, int length)
void	targetCommit()
int	targetNewId()
StatefulBuffer	targetStatefulBufferByAddress(int address, int length)
void	targetUuidIndexID(int id)
void	targetWriteBytes(ByteArrayBuffer reader, int address)
void	targetWriteBytes(DefragmentContextImpl context, int address)
void	traverseAll(ClassMetadata classMetadata, Visitor4 command)
void	traverseAllIndexSlots(BTree btree, Visitor4 command)
void	traverseAllIndexSlots(ClassMetadata classMetadata, Visitor4 command)
IdSource	unindexedIDs()

Methods inherited from class java.lang.Object

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

Field Detail

SOURCEDB

public static final DefragmentServicesImpl.DbSelector SOURCEDB

TARGETDB

public static final DefragmentServicesImpl.DbSelector TARGETDB

Constructor Detail

DefragmentServicesImpl

public DefragmentServicesImpl(DefragmentConfig defragConfig,
                      DefragmentListener listener)
                       throws java.io.IOException

Throws:

java.io.IOException

Method Detail

mappedID

public int mappedID(int oldID,
           int defaultID)

strictMappedID

public int strictMappedID(int oldID)
                   throws MappingNotFoundException

Specified by:

strictMappedID in interface IDMapping

Returns:

a mapping for the given id. if it does refer to a system handler or the empty reference (0), returns the given id.

Throws:

MappingNotFoundException - if the given id does not refer to a system handler or the empty reference (0) and if no mapping is found

mappedID

public int mappedID(int id)

Specified by:

mappedID in interface DefragmentServices

mapIDs

public void mapIDs(int oldID,
          int newID,
          boolean isClassID)

Specified by:

mapIDs in interface IDMapping

close

public void close()

bufferByID

public ByteArrayBuffer bufferByID(DefragmentServicesImpl.DbSelector selector,
                         int id)

sourceBufferByAddress

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

Specified by:

sourceBufferByAddress in interface DefragmentServices

Throws:

java.io.IOException

targetBufferByAddress

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

Specified by:

targetBufferByAddress in interface DefragmentServices

Throws:

java.io.IOException

bufferByAddress

public ByteArrayBuffer bufferByAddress(DefragmentServicesImpl.DbSelector selector,
                              int address,
                              int length)

targetStatefulBufferByAddress

public StatefulBuffer targetStatefulBufferByAddress(int address,
                                           int length)
                                             throws java.lang.IllegalArgumentException

Throws:

java.lang.IllegalArgumentException

allocateTargetSlot

public Slot allocateTargetSlot(int length)

Specified by:

allocateTargetSlot in interface DefragmentServices

targetWriteBytes

public void targetWriteBytes(DefragmentContextImpl context,
                    int address)

Specified by:

targetWriteBytes in interface DefragmentServices

targetWriteBytes

public void targetWriteBytes(ByteArrayBuffer reader,
                    int address)

Specified by:

targetWriteBytes in interface DefragmentServices

storedClasses

public StoredClass[] storedClasses(DefragmentServicesImpl.DbSelector selector)

stringIO

public LatinStringIO stringIO()

targetCommit

public void targetCommit()

sourceHandler

public TypeHandler4 sourceHandler(int id)

sourceClassCollectionID

public int sourceClassCollectionID()

classIndexID

public int classIndexID(ClassMetadata classMetadata)

traverseAll

public void traverseAll(ClassMetadata classMetadata,
               Visitor4 command)

traverseAllIndexSlots

public void traverseAllIndexSlots(ClassMetadata classMetadata,
                         Visitor4 command)

traverseAllIndexSlots

public void traverseAllIndexSlots(BTree btree,
                         Visitor4 command)

Specified by:

traverseAllIndexSlots in interface DefragmentServices

registerBTreeIDs

public void registerBTreeIDs(BTree btree,
                    IDMappingCollector collector)

Specified by:

registerBTreeIDs in interface DefragmentServices

databaseIdentityID

public int databaseIdentityID(DefragmentServicesImpl.DbSelector selector)

systemTrans

public Transaction systemTrans()

Specified by:

systemTrans in interface DefragmentServices

copyIdentity

public void copyIdentity()

replaceClassMetadataRepository

public void replaceClassMetadataRepository()

defragIdToTimestampBtree

public void defragIdToTimestampBtree()

sourceBufferByID

public ByteArrayBuffer sourceBufferByID(int sourceID)

Specified by:

sourceBufferByID in interface DefragmentServices

sourceUuidIndex

public BTree sourceUuidIndex()

targetUuidIndexID

public void targetUuidIndexID(int id)

sourceUuidIndexID

public int sourceUuidIndexID()

sourceIdToTimestampIndexID

public int sourceIdToTimestampIndexID()

classMetadataForId

public ClassMetadata classMetadataForId(int id)

Specified by:

classMetadataForId in interface DefragmentServices

registerUnindexed

public void registerUnindexed(int id)

Specified by:

registerUnindexed in interface DefragmentServices

unindexedIDs

public IdSource unindexedIDs()

Specified by:

unindexedIDs in interface DefragmentServices

sourceObjectHeader

public ObjectHeader sourceObjectHeader(ByteArrayBuffer buffer)

blockSize

public int blockSize()

sourceAddressByID

public int sourceAddressByID(int sourceID)

Specified by:

sourceAddressByID in interface DefragmentServices

targetAddressByID

public int targetAddressByID(int sourceID)

Specified by:

targetAddressByID in interface DefragmentServices

accept

public boolean accept(StoredClass klass)

targetNewId

public int targetNewId()

Specified by:

targetNewId in interface DefragmentServices

mapping

public IdMapping mapping()

Specified by:

mapping in interface DefragmentServices

commitIds

public void commitIds()

Specified by:

commitIds in interface DefragmentServices