Package com.db4o.internal.slots

Class SlotChange

java.lang.Object

com.db4o.foundation.Tree<java.lang.Integer>

com.db4o.internal.TreeInt

com.db4o.internal.slots.SlotChange

All Implemented Interfaces:

DeepClone, ShallowClone, Visitable<java.lang.Integer>, Readable, ReadWriteable

Direct Known Subclasses:

SystemSlotChange

public class SlotChange
extends TreeInt

Field Summary

Fields

Modifier and Type	Field	Description
protected Slot	_newSlot

Fields inherited from class com.db4o.internal.TreeInt

_key

Fields inherited from class com.db4o.foundation.Tree

_preceding, _size, _subsequent

Constructor Summary

Constructors

Constructor	Description
SlotChange(int id)

Method Summary

Modifier and Type	Method	Description
void	accumulateFreeSlot(TransactionalIdSystemImpl idSystem, FreespaceCommitter freespaceCommitter, boolean forFreespace)
protected boolean	forFreespace()
protected void	free(FreespaceManager freespaceManager, Slot slot)
protected void	freePreviouslyModifiedSlot(FreespaceManager freespaceManager)
protected boolean	freeToSystemFreespaceSystem()
boolean	isDeleted()
boolean	isNew()
protected Slot	modifiedSlotInParentIdSystem(TransactionalIdSystemImpl idSystem)
Slot	newSlot()	FIXME: Check where pointers should be freed on commit.
void	notifyDeleted(FreespaceManager freespaceManager)
void	notifySlotCreated(Slot slot)
void	notifySlotUpdated(FreespaceManager freespaceManager, Slot slot)
java.lang.Object	read(ByteArrayBuffer reader)
boolean	removeId()
void	rollback(FreespaceManager freespaceManager)
java.lang.Object	shallowClone()
boolean	slotModified()
java.lang.String	toString()
void	write(ByteArrayBuffer writer)
void	writePointer(LocalObjectContainer container)

Methods inherited from class com.db4o.internal.TreeInt

add, addAll, compare, duplicates, equals, find, find, key, marshalledLength, marshalledLength, marshalledLength, ownLength, removeLike, shallowCloneInternal, write, write

Methods inherited from class com.db4o.foundation.Tree

accept, add, add, add, addedOrExisting, balance, balanceCheckNulls, calculateSize, deepClone, deepClone, depth, filter, find, find, findGreaterOrEqual, findSmaller, first, last, last, nodes, onAttemptToAddDuplicate, ownSize, remove, removeChildren, removeFirst, removeLike, removeLike, removeNode, root, rotateLeft, rotateRight, setSizeOwn, setSizeOwnPlus, setSizeOwnPlus, setSizeOwnPreceding, setSizeOwnPrecedingSubsequent, setSizeOwnSubsequent, size, size, traverse, traverse, traverse, traverseFromLeaves, wasAddedToTree

Methods inherited from class java.lang.Object

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

Field Detail

_newSlot

protected Slot _newSlot

Constructor Detail

SlotChange

public SlotChange(int id)

Method Detail

shallowClone

public java.lang.Object shallowClone()

Specified by:

shallowClone in interface ShallowClone

Overrides:

shallowClone in class TreeInt

accumulateFreeSlot

public void accumulateFreeSlot(TransactionalIdSystemImpl idSystem,
                               FreespaceCommitter freespaceCommitter,
                               boolean forFreespace)

forFreespace

protected boolean forFreespace()

modifiedSlotInParentIdSystem

protected Slot modifiedSlotInParentIdSystem(TransactionalIdSystemImpl idSystem)

isDeleted

public boolean isDeleted()

isNew

public boolean isNew()

slotModified

public final boolean slotModified()

newSlot

public Slot newSlot()

FIXME: Check where pointers should be freed on commit. This should be triggered in this class.

read

public java.lang.Object read(ByteArrayBuffer reader)

Specified by:

read in interface Readable

Overrides:

read in class TreeInt

rollback

public void rollback(FreespaceManager freespaceManager)

write

public void write(ByteArrayBuffer writer)

Specified by:

write in interface ReadWriteable

Overrides:

write in class TreeInt

writePointer

public final void writePointer(LocalObjectContainer container)

notifySlotUpdated

public void notifySlotUpdated(FreespaceManager freespaceManager,
                              Slot slot)

freePreviouslyModifiedSlot

protected void freePreviouslyModifiedSlot(FreespaceManager freespaceManager)

free

protected void free(FreespaceManager freespaceManager,
                    Slot slot)

notifySlotCreated

public void notifySlotCreated(Slot slot)

notifyDeleted

public void notifyDeleted(FreespaceManager freespaceManager)

removeId

public boolean removeId()

toString

public java.lang.String toString()

Overrides:

toString in class TreeInt

freeToSystemFreespaceSystem

protected boolean freeToSystemFreespaceSystem()