private void KeyChanged(Transaction trans, Db4objects.Db4o.Internal.Btree.BTreeNode
child)
{
PrepareWrite(trans);
SetStateDirty();
int id = child.GetID();
for (int i = 0; i < _count; i++)
{
if (ChildID(i) == id)
{
_keys[i] = child._keys[0];
_children[i] = child;
KeyChanged(trans, i);
return;
}
}
throw new InvalidOperationException("child not found");
}
private void RemoveChild(Transaction trans, Db4objects.Db4o.Internal.Btree.BTreeNode
child)
{
PrepareWrite(trans);
SetStateDirty();
int id = child.GetID();
for (int i = 0; i < _count; i++)
{
if (ChildID(i) == id)
{
if (FreeIfEmpty(trans, _count - 1))
{
return;
}
Remove(i);
if (i < 1)
{
TellParentAboutChangedKey(trans);
}
if (_count == 0)
{
// root node empty case only, have to turn it into a leaf
_isLeaf = true;
}
return;
}
}
throw new InvalidOperationException("child not found");
}