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## com.mxgraph.layout.hierarchical.model
Class mxGraphHierarchyNode

    java.lang.Object
      com.mxgraph.layout.hierarchical.model.mxGraphAbstractHierarchyCell
          com.mxgraph.layout.hierarchical.model.mxGraphHierarchyNode

    public class mxGraphHierarchyNode

extends mxGraphAbstractHierarchyCell

An abstraction of an internal node in the hierarchy layout

Field Summary
`Object` | `cell` The graph cell this object represents.
`Collection<mxGraphHierarchyEdge>` | `connectsAsSource` Collection of hierarchy edges that have this node as a source
`Collection<mxGraphHierarchyEdge>` | `connectsAsTarget` Collection of hierarchy edges that have this node as a target
`static Collection<mxGraphHierarchyEdge>` | `emptyConnectionMap` Shared empty connection map to return instead of null in applyMap.
`int[]` | `hashCode` Assigns a unique hashcode for each node.

Fields inherited from class com.mxgraph.layout.hierarchical.model.mxGraphAbstractHierarchyCell
`height, maxRank, minRank, nextLayerConnectedCells, previousLayerConnectedCells, temp, width, x, y`

Constructor Summary
`mxGraphHierarchyNode(Object cell)` Constructs an internal node to represent the specified real graph cell

Method Summary
`int` | `getGeneralPurposeVariable(int layer)` Gets the value of temp for the specified layer
`List<mxGraphAbstractHierarchyCell>` | `getNextLayerConnectedCells(int layer)` Returns the cells this cell connects to on the next layer up
`List<mxGraphAbstractHierarchyCell>` | `getPreviousLayerConnectedCells(int layer)` Returns the cells this cell connects to on the next layer down
`int` | `getRankValue()` Returns the integer value of the layer that this node resides in
`boolean` | `isAncestor(mxGraphHierarchyNode otherNode)`
`boolean` | `isEdge()`
`boolean` | `isVertex()`
`void` | `setGeneralPurposeVariable(int layer, int value)` Set the value of temp for the specified layer

Methods inherited from class com.mxgraph.layout.hierarchical.model.mxGraphAbstractHierarchyCell
`getX, setX, setY`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### emptyConnectionMap

    public static Collection<mxGraphHierarchyEdge> emptyConnectionMap

  Shared empty connection map to return instead of null in applyMap.

### cell

    public Object cell

  The graph cell this object represents.

### connectsAsTarget

    public Collection<mxGraphHierarchyEdge> connectsAsTarget

  Collection of hierarchy edges that have this node as a target

### connectsAsSource

    public Collection<mxGraphHierarchyEdge> connectsAsSource

  Collection of hierarchy edges that have this node as a source

### hashCode

    public int[] hashCode

  Assigns a unique hashcode for each node. Used by the model dfs instead of copying HashSets

Constructor Detail

### mxGraphHierarchyNode

    public mxGraphHierarchyNode(Object cell)

  Constructs an internal node to represent the specified real graph cell

  Parameters:
    `cell` - the real graph cell this node represents

Method Detail

### getRankValue

    public int getRankValue()

  Returns the integer value of the layer that this node resides in

  Returns:
    the integer value of the layer that this node resides in

### getNextLayerConnectedCells

    public List<mxGraphAbstractHierarchyCell> getNextLayerConnectedCells(int layer)

  Returns the cells this cell connects to on the next layer up

  Specified by:
    `getNextLayerConnectedCells` in class `mxGraphAbstractHierarchyCell`
  Parameters:
    `layer` - the layer this cell is on
  Returns:
    the cells this cell connects to on the next layer up

### getPreviousLayerConnectedCells

    public List<mxGraphAbstractHierarchyCell> getPreviousLayerConnectedCells(int layer)

  Returns the cells this cell connects to on the next layer down

  Specified by:
    `getPreviousLayerConnectedCells` in class `mxGraphAbstractHierarchyCell`
  Parameters:
    `layer` - the layer this cell is on
  Returns:
    the cells this cell connects to on the next layer down

### isEdge

    public boolean isEdge()

  Specified by:
    `isEdge` in class `mxGraphAbstractHierarchyCell`
  Returns:
    whether or not this cell is an edge

### isVertex

    public boolean isVertex()

  Specified by:
    `isVertex` in class `mxGraphAbstractHierarchyCell`
  Returns:
    whether or not this cell is a node

### getGeneralPurposeVariable

    public int getGeneralPurposeVariable(int layer)

  Gets the value of temp for the specified layer

  Specified by:
    `getGeneralPurposeVariable` in class `mxGraphAbstractHierarchyCell`
  Parameters:
    `layer` - the layer relating to a specific entry into temp
  Returns:
    the value for that layer

### setGeneralPurposeVariable

    public void setGeneralPurposeVariable(int layer,
                                          int value)

  Set the value of temp for the specified layer

  Specified by:
    `setGeneralPurposeVariable` in class `mxGraphAbstractHierarchyCell`
  Parameters:
    `layer` - the layer relating to a specific entry into temp
    `value` - the value for that layer

### isAncestor

    public boolean isAncestor(mxGraphHierarchyNode otherNode)

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