Package com.db4o.internal.btree

Class BTreeUpdate

java.lang.Object

com.db4o.internal.btree.BTreePatch

com.db4o.internal.btree.BTreeUpdate

Direct Known Subclasses:

BTreeCancelledRemoval, BTreeRemove

public abstract class BTreeUpdate
extends BTreePatch

Field Summary

Fields

Modifier and Type	Field	Description
protected BTreeUpdate	_next

Fields inherited from class com.db4o.internal.btree.BTreePatch

_object, _transaction

Constructor Summary

Constructors

Constructor	Description
BTreeUpdate(Transaction transaction, java.lang.Object obj)

Method Summary

Modifier and Type	Method	Description
protected abstract void	adjustSizeOnRemovalByOtherTransaction(BTree btree, BTreeNode node)
void	append(BTreeUpdate patch)
protected void	applyKeyChange(java.lang.Object obj)
java.lang.Object	commit(Transaction trans, BTree btree, BTreeNode node)
protected abstract void	committed(BTree btree)
BTreePatch	forTransaction(Transaction trans)
protected abstract java.lang.Object	getCommittedObject()
protected boolean	hasNext()
protected java.lang.Object	internalCommit(Transaction trans, BTree btree)
java.lang.Object	key(Transaction trans)
void	removedBy(Transaction trans, BTree btree, BTreeNode node)
BTreeUpdate	removeFor(Transaction trans)
BTreeUpdate	replacePatch(BTreePatch patch, BTreeUpdate update)
java.lang.Object	rollback(Transaction trans, BTree btree)
protected abstract int	sizeDiff()
int	sizeDiff(Transaction trans)

Methods inherited from class com.db4o.internal.btree.BTreePatch

getObject, isAdd, isCancelledRemoval, isRemove, toString

Methods inherited from class java.lang.Object

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

Field Detail

_next

protected BTreeUpdate _next

Constructor Detail

BTreeUpdate

public BTreeUpdate(Transaction transaction,
                   java.lang.Object obj)

Method Detail

hasNext

protected boolean hasNext()

forTransaction

public BTreePatch forTransaction(Transaction trans)

Specified by:

forTransaction in class BTreePatch

removeFor

public BTreeUpdate removeFor(Transaction trans)

append

public void append(BTreeUpdate patch)

applyKeyChange

protected void applyKeyChange(java.lang.Object obj)

committed

protected abstract void committed(BTree btree)

commit

public java.lang.Object commit(Transaction trans,
                               BTree btree,
                               BTreeNode node)

Specified by:

commit in class BTreePatch

internalCommit

protected final java.lang.Object internalCommit(Transaction trans,
                                                BTree btree)

getCommittedObject

protected abstract java.lang.Object getCommittedObject()

rollback

public java.lang.Object rollback(Transaction trans,
                                 BTree btree)

Specified by:

rollback in class BTreePatch

key

public java.lang.Object key(Transaction trans)

Specified by:

key in class BTreePatch

replacePatch

public BTreeUpdate replacePatch(BTreePatch patch,
                                BTreeUpdate update)

removedBy

public void removedBy(Transaction trans,
                      BTree btree,
                      BTreeNode node)

adjustSizeOnRemovalByOtherTransaction

protected abstract void adjustSizeOnRemovalByOtherTransaction(BTree btree,
                                                              BTreeNode node)

sizeDiff

public int sizeDiff(Transaction trans)

Specified by:

sizeDiff in class BTreePatch

sizeDiff

protected abstract int sizeDiff()