TAVLTree

type TAVLTree = class

public

  Root: TAVLTreeNode;

Root node of the tree

  function Find();

Find a data item in the tree.

  function FindKey();

Find a data item in the tree using alternate compare mechanism

  function FindSuccessor();

Find successor to node

  function FindPrecessor();

  function FindLowest;

Find the lowest (leftmost) node in the tree.

  function FindHighest;

Find the highest (rightmost) node in the tree.

  function FindNearest();

Find the node closest to the data in the tree

  function FindPointer();

Search for a data pointer

  function FindLeftMost();

Find the node most left to a specified data node

  function FindRightMost();

Find the node most right to a specified node

  function FindLeftMostKey();

Find the node most left to a specified key node

  function FindRightMostKey();

Find the node most right to a specified key node

  function FindLeftMostSameKey();

Find the node most left to a specified node with the same data

  function FindRightMostSameKey();

Find the node most right of a specified node with the same data

  procedure Add();

Add a new node to the tree

  procedure Delete();

Delete a node from the tree

  procedure Remove();

Remove a data item from the list.

  procedure RemovePointer();

Remove a pointer item from the list.

  procedure MoveDataLeftMost();

Move data to the nearest left element

  procedure MoveDataRightMost();

Move data to the nearest right element

  property OnCompare: TListSortCompare; [rw]

Compare function used when comparing nodes

  procedure Clear;

Clears the tree

  procedure FreeAndClear;

Clears the tree and frees nodes

  procedure FreeAndDelete();

Delete a node from the tree and destroy it

  property Count: Integer; [r]

Number of nodes in the tree.

  function ConsistencyCheck;

Check the consistency of the tree

  procedure WriteReportToStream();

Write the contents of the tree consistency check to the stream

  function ReportAsString;

Return the tree report as a string

  procedure SetNodeManager();

  procedure Create();

Create a new instance of TAVLTree

  destructor Destroy; override;

Destroy the TAVLTree instance

end;

TAVLTree

AVL tree component

TObject

TAVLTreeNode

Represents a node in the tree.