TreePolicy
return TreePolicy::GetNode(treeNode);
TreePolicy::GetNode(fNextTreeNode));
fNextTreeNode = TreePolicy::GetFirstTreeNode(fIndex);
fNextTreeNode = TreePolicy::FindClosestTreeNode(fIndex, value);
fNextTreeNode = TreePolicy::GetFirstTreeNode(fIndex);
Node* newNode = TreePolicy::GetNode(fNextTreeNode);
typedef typename Policy::TreePolicy TreePolicy;
TreePolicy::GetTreeNodeValue(fNextTreeNode, buffer, _keyLength);