public abstract class RecursiveTreeTransformer extends java.lang.Object implements TreeTransformer
BasicCategoryTreeTransformer
turns all the non-leaf labels of a tree into their basic categories
given a set of treebank parameters which describe how to turn the
basic categories.
Constructor and Description |
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RecursiveTreeTransformer() |
Modifier and Type | Method and Description |
---|---|
Tree |
transformHelper(Tree tree) |
Label |
transformLabel(Tree tree) |
Tree |
transformNonterminal(Tree tree) |
Label |
transformNonterminalLabel(Tree tree) |
Tree |
transformTerminal(Tree tree) |
Label |
transformTerminalLabel(Tree tree) |
Tree |
transformTree(Tree tree)
Does whatever one needs to do to a particular tree.
|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
apply
public Tree transformTree(Tree tree)
TreeTransformer
Tree
, and could itself
work recursively, but the canonical usage is to invoke this method
via the Tree.transform()
method, which will apply the
transformer in a bottom-up manner to each local Tree
,
and hence the implementation of TreeTransformer
should
merely examine and change a local (one-level) Tree
.transformTree
in interface TreeTransformer
tree
- A tree. Classes implementing this interface can assume
that the tree passed in is not null
.Tree