private void CancelRemoval(Transaction trans, object obj, int index)
{
BTreeUpdate patch = (BTreeUpdate)KeyPatch(index);
BTreeUpdate nextPatch = patch.RemoveFor(trans);
_keys[index] = NewCancelledRemoval(trans, patch.GetObject(), obj, nextPatch);
SizeIncrement(trans);
}
public BTreeCancelledRemoval(Transaction transaction, object originalKey, object
newKey, BTreeUpdate existingPatches) : base(transaction, originalKey)
{
_newKey = newKey;
if (null != existingPatches)
{
Append(existingPatches);
}
}
public BTreeCancelledRemoval(Transaction transaction, object originalKey, object
newKey, BTreeUpdate existingPatches) : base(transaction, originalKey)
{
_newKey = newKey;
if (null != existingPatches)
{
Append(existingPatches);
}
}
public override int SizeDiff(Transaction trans)
{
Db4objects.Db4o.Internal.Btree.BTreeUpdate patchForTransaction = (Db4objects.Db4o.Internal.Btree.BTreeUpdate
)ForTransaction(trans);
if (patchForTransaction == null)
{
return(1);
}
return(patchForTransaction.SizeDiff());
}
private void SetNextIfPatch(object newNext)
{
if (newNext is Db4objects.Db4o.Internal.Btree.BTreeUpdate)
{
_next = (Db4objects.Db4o.Internal.Btree.BTreeUpdate)newNext;
}
else
{
_next = null;
}
}
private void SetNextIfPatch(object newNext)
{
if (newNext is BTreeUpdate)
{
_next = (BTreeUpdate)newNext;
}
else
{
_next = null;
}
}
public virtual Db4objects.Db4o.Internal.Btree.BTreeUpdate RemoveFor(Transaction trans
)
{
if (_transaction == trans)
{
return _next;
}
if (_next != null)
{
_next = _next.RemoveFor(trans);
}
return this;
}
public virtual BTreeUpdate RemoveFor(Transaction trans
)
{
if (_transaction == trans)
{
return(_next);
}
if (_next != null)
{
_next = _next.RemoveFor(trans);
}
return(this);
}
public virtual BTreeUpdate RemoveFor(Transaction trans
)
{
if (_transaction == trans)
{
return _next;
}
if (_next != null)
{
_next = _next.RemoveFor(trans);
}
return this;
}
public virtual Db4objects.Db4o.Internal.Btree.BTreeUpdate RemoveFor(Transaction trans
)
{
if (_transaction == trans)
{
return(_next);
}
if (_next != null)
{
_next = _next.RemoveFor(trans);
}
return(this);
}
public virtual void Append(Db4objects.Db4o.Internal.Btree.BTreeUpdate patch)
{
if (_transaction == patch._transaction)
{
throw new ArgumentException();
}
if (!HasNext())
{
_next = patch;
}
else
{
_next.Append(patch);
}
}
public virtual Db4objects.Db4o.Internal.Btree.BTreeUpdate ReplacePatch(BTreePatch
patch, Db4objects.Db4o.Internal.Btree.BTreeUpdate update)
{
if (patch == this)
{
update._next = _next;
return(update);
}
if (_next == null)
{
throw new InvalidOperationException();
}
_next = _next.ReplacePatch(patch, update);
return(this);
}
public virtual BTreeUpdate ReplacePatch(BTreePatch
patch, BTreeUpdate update)
{
if (patch == this)
{
update._next = _next;
return(update);
}
if (_next == null)
{
throw new InvalidOperationException();
}
_next = _next.ReplacePatch(patch, update);
return(this);
}
public virtual void Append(Db4objects.Db4o.Internal.Btree.BTreeUpdate patch)
{
if (_transaction == patch._transaction)
{
throw new ArgumentException();
}
if (!HasNext())
{
_next = patch;
}
else
{
_next.Append(patch);
}
}
public virtual void Append(BTreeUpdate patch)
{
if (_transaction == patch._transaction)
{
// don't allow two patches for the same transaction
throw new ArgumentException();
}
if (!HasNext())
{
_next = patch;
}
else
{
_next.Append(patch);
}
}
public virtual void Append(BTreeUpdate patch)
{
if (_transaction == patch._transaction)
{
// don't allow two patches for the same transaction
throw new ArgumentException();
}
if (!HasNext())
{
_next = patch;
}
else
{
_next.Append(patch);
}
}
public override object Commit(Transaction trans, BTree btree, BTreeNode node)
{
Db4objects.Db4o.Internal.Btree.BTreeUpdate patch = (Db4objects.Db4o.Internal.Btree.BTreeUpdate
)ForTransaction(trans);
if (patch is BTreeCancelledRemoval)
{
object obj = patch.GetCommittedObject();
ApplyKeyChange(obj);
}
else
{
if (patch is BTreeRemove)
{
RemovedBy(trans, btree, node);
patch.Committed(btree);
return(No4.Instance);
}
}
return(InternalCommit(trans, btree));
}
private BTreePatch NewCancelledRemoval(Transaction trans, object originalObject,
object currentObject, BTreeUpdate existingPatches)
{
return(new BTreeCancelledRemoval(trans, originalObject, currentObject, existingPatches
));
}
public virtual Db4objects.Db4o.Internal.Btree.BTreeUpdate ReplacePatch(BTreePatch
patch, Db4objects.Db4o.Internal.Btree.BTreeUpdate update)
{
if (patch == this)
{
update._next = _next;
return update;
}
if (_next == null)
{
throw new InvalidOperationException();
}
_next = _next.ReplacePatch(patch, update);
return this;
}
private void SetNextIfPatch(object newNext)
{
if (newNext is Db4objects.Db4o.Internal.Btree.BTreeUpdate)
{
_next = (Db4objects.Db4o.Internal.Btree.BTreeUpdate)newNext;
}
else
{
_next = null;
}
}
private BTreePatch NewCancelledRemoval(Transaction trans, object originalObject,
object currentObject, BTreeUpdate existingPatches)
{
return new BTreeCancelledRemoval(trans, originalObject, currentObject, existingPatches
);
}
public virtual BTreeUpdate ReplacePatch(BTreePatch
patch, BTreeUpdate update)
{
if (patch == this)
{
update._next = _next;
return update;
}
if (_next == null)
{
throw new InvalidOperationException();
}
_next = _next.ReplacePatch(patch, update);
return this;
}
private void SetNextIfPatch(object newNext)
{
if (newNext is BTreeUpdate)
{
_next = (BTreeUpdate) newNext;
}
else
{
_next = null;
}
}
