edu.illinois.cs.cogcomp.core.algorithms

Class Mappers

java.lang.Object

edu.illinois.cs.cogcomp.core.algorithms.Mappers

public class Mappers
extends Object

Provides methods to map over Iterables and Trees. Each method also takes as input an ITransformer which transforms an individual node of the iterable or the tree into a new object of a (possibly) different type. The methods then return a new iterable or tree containing the new objects.

Author:

Vivek Srikumar

Constructor Summary

Constructors

Constructor and Description
Mappers()

Method Summary

Modifier and Type	Method and Description
static <T,S> Tree<S>	conditionalMapTree(Tree<T> tree, ITransformer<Tree<T>,S> transformer, ITransformer<Tree<T>,Boolean> predicate)
static <T,S> List<S>	map(Iterable<T> enumeration, ITransformer<T,S> f)
static <T,S> Tree<S>	mapTree(Tree<T> tree, ITransformer<Tree<T>,S> transformer)
static <T,S> Tree<S>	mapTree(Tree<T> tree, ITransformer<Tree<T>,S> nodeTransformer, ITransformer<T,S> edgeTransformer)
static <T,S> Tree<S>	mapTreePostfix(Tree<T> tree, ITransformer<Tree<T>,S> transformer)
static <T,S> Tree<S>	mapTreePostfixConditional(Tree<T> tree, ITransformer<Tree<T>,S> transformer, ITransformer<Tree<T>,Boolean> predicate)

Methods inherited from class java.lang.Object

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

Constructor Detail

Mappers

public Mappers()

Method Detail

map

public static <T,S> List<S> map(Iterable<T> enumeration,
                                ITransformer<T,S> f)

mapTree

public static <T,S> Tree<S> mapTree(Tree<T> tree,
                                    ITransformer<Tree<T>,S> transformer)

mapTree

public static <T,S> Tree<S> mapTree(Tree<T> tree,
                                    ITransformer<Tree<T>,S> nodeTransformer,
                                    ITransformer<T,S> edgeTransformer)

conditionalMapTree

public static <T,S> Tree<S> conditionalMapTree(Tree<T> tree,
                                               ITransformer<Tree<T>,S> transformer,
                                               ITransformer<Tree<T>,Boolean> predicate)

mapTreePostfix

public static <T,S> Tree<S> mapTreePostfix(Tree<T> tree,
                                           ITransformer<Tree<T>,S> transformer)

mapTreePostfixConditional

public static <T,S> Tree<S> mapTreePostfixConditional(Tree<T> tree,
                                                      ITransformer<Tree<T>,S> transformer,
                                                      ITransformer<Tree<T>,Boolean> predicate)