stream.data.tree.Height.md Maven / Gradle / Ivy
Height
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This processor computes the height of trees implementing the `TreeNode` interface.
The height is computed for all attributes of type TreeNode or the specified keys,
if the `keys` parameter has been set.
The height of each tree is stored as attribute `height(...)`. For example, in the
following snippet, the Height processor will create a new attribute `height(@sql:tree)`
with the height of the tree stored in `@sql:tree`:
<Height keys="@sql:tree" />