Class FoldRight.FoldRightHelper<T>

java.lang.Object

org.apache.commons.functor.core.algorithm.FoldRight.FoldRightHelper<T>

Type Parameters:

T - the returned evaluation type.

All Implemented Interfaces:

Functor, UnaryFunctor<T>, UnaryProcedure<T>

Enclosing class:

FoldRight<T>

private static class FoldRight.FoldRightHelper<T>
extends Object
implements UnaryProcedure<T>

Helper class.

Version:

$Revision$ $Date$

Field Summary

Fields

Modifier and Type	Field	Description
private final BinaryFunction<? super T, ? super T, ? extends T>	function	The wrapped function.
private final boolean	hasSeed	Flag to check the helper started or not.
private final T	seed	The seed object.
private final Stack<T>	stk	The stack where storing the wrapped function evaluations.

Constructor Summary

Constructors

Constructor	Description
FoldRightHelper(BinaryFunction<? super T, ? super T, ? extends T> function)	Create a seedless FoldRightHelper.
FoldRightHelper(T seed, BinaryFunction<? super T, ? super T, ? extends T> function)	Create a new FoldRightHelper.

Method Summary

Modifier and Type	Method	Description
(package private) T	getResult()	Get result after processing.
void	run(T obj)	Execute this procedure.

Methods inherited from class Object

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

Methods inherited from interface Functor

equals, hashCode, toString

Field Details

stk

private final Stack<T> stk

The stack where storing the wrapped function evaluations.

function

private final BinaryFunction<? super T, ? super T, ? extends T> function

The wrapped function.

seed

private final T seed

The seed object.

hasSeed

private final boolean hasSeed

Flag to check the helper started or not.

Constructor Details

FoldRightHelper

public FoldRightHelper(BinaryFunction<? super T, ? super T, ? extends T> function)

Create a seedless FoldRightHelper.

Parameters:

function - The wrapped function

FoldRightHelper

FoldRightHelper(T seed,
 BinaryFunction<? super T, ? super T, ? extends T> function)

Create a new FoldRightHelper.

Parameters:

seed - initial right-side argument

function - The wrapped function

Method Details

run

public void run(T obj)

Execute this procedure.

Specified by:

run in interface UnaryProcedure<T>

Parameters:

obj - an A parameter to this execution

getResult

T getResult()

Get result after processing. Get current result.

Returns:

Object