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This interface must be implemented when traversing a tree with TreeUtil.traverse
or TreeUtil.traverseFrom
.
Method Summary | |
boolean |
nodeEntered(Traversal traversal)
Notify the Callback that a node has been entered during traversal. |
void |
nodeExited(Traversal traversal)
Notify the Callback that a node has been exited during traversal. |
Method Detail |
public boolean nodeEntered(Traversal traversal) throws ReturnFromTraversalException
traversal
- The traversal for the node just entered.
ReturnFromTraversalException
- If the traversal should be
terminated prematurely.public void nodeExited(Traversal traversal) throws ReturnFromTraversalException
traversal
- The traversal for the node just exited.
ReturnFromTraversalException
- If the traversal should be
terminated prematurely.
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