edu.stanford.nlp.trees
Interface TreeTransformer

All Known Implementing Classes:

AbstractTreebankParserParams.SubcategoryStripper, CharacterLevelTagExtender, ChineseCollinizer, CompositeTreeTransformer, EnglishTreebankParserParams.EnglishSubcategoryStripper, TreeBinarizer

public interface TreeTransformer

This is a simple interface for a function that alters a local Tree.

Author:

Christopher Manning.

Method Summary

Tree	transformTree(Tree t) Does whatever one needs to do to a particular tree.

Method Detail

transformTree

Tree transformTree(Tree t)

Does whatever one needs to do to a particular tree. This routine is passed a whole 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.

Parameters:

t - A tree. Classes implementing this interface can assume that the tree passed in is not null.

Returns:

the transformed Tree