edu.stanford.nlp.trees

Class CompositeTreeTransformer

java.lang.Object

edu.stanford.nlp.trees.CompositeTreeTransformer

All Implemented Interfaces:

TreeTransformer, java.util.function.Function<Tree,Tree>

public class CompositeTreeTransformer
extends java.lang.Object
implements TreeTransformer

A TreeTransformer that applies component TreeTransformers in order. The order in which they are applied is the order in which they are added or the order in which they appear in the List passed to the constructor.

Author:

Galen Andrew

Constructor Summary

Constructors

Constructor and Description
CompositeTreeTransformer()
CompositeTreeTransformer(java.util.List<TreeTransformer> tt)
CompositeTreeTransformer(TreeTransformer... tt)

Method Summary

Modifier and Type	Method and Description
void	addTransformer(TreeTransformer tt)
java.lang.String	toString()
Tree	transformTree(Tree t) Does whatever one needs to do to a particular tree.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface edu.stanford.nlp.trees.TreeTransformer

apply

Methods inherited from interface java.util.function.Function

andThen, compose, identity

Constructor Detail

CompositeTreeTransformer

public CompositeTreeTransformer()

CompositeTreeTransformer

public CompositeTreeTransformer(java.util.List<TreeTransformer> tt)

CompositeTreeTransformer

public CompositeTreeTransformer(TreeTransformer... tt)

Method Detail

addTransformer

public void addTransformer(TreeTransformer tt)

transformTree

public Tree transformTree(Tree t)

Description copied from interface: TreeTransformer

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.

Specified by:

transformTree in interface TreeTransformer

Parameters:

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

Returns:

The transformed Tree

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object