NodeDescendants.Visitor (Starjava UTIL API)

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Enclosing class:

NodeDescendants
```
public static interface NodeDescendants.Visitor
```
The Visitor processes a single node in a tree. This allows an object to visit each of the nodes in a tree.

See Also:

NodeDescendants.visitTree(uk.ac.starlink.util.NodeDescendants.Visitor)

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  java.lang.Object visitNode(org.w3c.dom.Node n)
  Visit a node in a tree.

- Method Detail
  - visitNode
```
java.lang.Object visitNode(org.w3c.dom.Node n)
```
    Visit a node in a tree. If the object doing the visiting wishes to stop the traversal early, it should return non-null. Otherwise it should return null.
    
    Parameters:
    
    n - the node being visited
    
    Returns:
    
    null if the traversal is to continue after this node; non-null if it is to stop

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