# Package com.mxgraph.layout.hierarchical.model

- Interface Summary
  Interface | Description
  --- | ---
  mxGraphHierarchyModel.CellVisitor | Defines the interface that visitors use to perform operations upon the graph information during depth first search (dfs) or other tree-traversal strategies implemented by subclassers.

- Class Summary
  Class | Description
  --- | ---
  mxGraphAbstractHierarchyCell | An abstraction of an internal hierarchy node or edge
  mxGraphHierarchyEdge | An abstraction of a hierarchical edge for the hierarchy layout
  mxGraphHierarchyModel | Internal model of a hierarchical graph.
  mxGraphHierarchyNode | An abstraction of an internal node in the hierarchy layout
  mxGraphHierarchyRank | An abstraction of a rank in the hierarchy layout.

Copyright (c) 2010 Gaudenz Alder. All rights reserved.