com.db4o.internal.freespace

Class BTreeFreespaceManager

java.lang.Object

com.db4o.internal.freespace.AbstractFreespaceManager

com.db4o.internal.freespace.BTreeFreespaceManager

All Implemented Interfaces:

FreespaceManager

public class BTreeFreespaceManager
extends AbstractFreespaceManager

Field Summary

Fields inherited from class com.db4o.internal.freespace.AbstractFreespaceManager

_slotFreedCallback, FM_BTREE, FM_DEBUG, FM_DEFAULT, FM_IX, FM_LEGACY_RAM, FM_RAM, REMAINDER_SIZE_LIMIT

Constructor Summary

Constructors

Constructor and Description
BTreeFreespaceManager(LocalObjectContainer file, Procedure4<Slot> slotFreedCallback, int discardLimit, int remainderSizeLimit)

Method Summary

Methods

Modifier and Type	Method and Description
Slot	allocateSafeSlot(int length)
Slot	allocateSlot(int length)
Slot	allocateTransactionLogSlot(int length)
void	beginCommit()
void	commit()
void	endCommit()
void	free(Slot slot)
void	freeSafeSlot(Slot slot)
void	freeSelf()
boolean	isStarted()
void	listener(FreespaceListener listener)
void	migrateTo(FreespaceManager fm)
void	read(LocalObjectContainer container, int freeSpaceID)
void	read(LocalObjectContainer container, Slot slot)
int	slotCount()
void	start(int id)
byte	systemType()
java.lang.String	toString()
int	totalFreespace()
void	traverse(Visitor4 visitor)
void	write(LocalObjectContainer container)

Methods inherited from class com.db4o.internal.freespace.AbstractFreespaceManager

checkType, createNew, createNew, debugCheckIntegrity, discardLimit, initSlot, migrate, migrationRequired, slotFreed, splitRemainder

Methods inherited from class java.lang.Object

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

Constructor Detail

BTreeFreespaceManager

public BTreeFreespaceManager(LocalObjectContainer file,
                     Procedure4<Slot> slotFreedCallback,
                     int discardLimit,
                     int remainderSizeLimit)

Method Detail

allocateSafeSlot

public Slot allocateSafeSlot(int length)

beginCommit

public void beginCommit()

commit

public void commit()

endCommit

public void endCommit()

free

public void free(Slot slot)

freeSelf

public void freeSelf()

freeSafeSlot

public void freeSafeSlot(Slot slot)

allocateSlot

public Slot allocateSlot(int length)

read

public void read(LocalObjectContainer container,
        int freeSpaceID)

slotCount

public int slotCount()

start

public void start(int id)

isStarted

public boolean isStarted()

systemType

public byte systemType()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

totalFreespace

public int totalFreespace()

Specified by:

totalFreespace in interface FreespaceManager

Overrides:

totalFreespace in class AbstractFreespaceManager

traverse

public void traverse(Visitor4 visitor)

migrateTo

public void migrateTo(FreespaceManager fm)

Specified by:

migrateTo in interface FreespaceManager

Overrides:

migrateTo in class AbstractFreespaceManager

write

public void write(LocalObjectContainer container)

listener

public void listener(FreespaceListener listener)

allocateTransactionLogSlot

public Slot allocateTransactionLogSlot(int length)

read

public void read(LocalObjectContainer container,
        Slot slot)