net.sf.javagimmicks.transform8

Interface BidiFunction<F,T>

Type Parameters:

F - the "from" or source type

T - the "to" or target type

All Superinterfaces:

java.util.function.Function<F,T>

public interface BidiFunction<F,T>
extends java.util.function.Function<F,T>

A bidirectional version of Function that is able to transform objects back into their original value and/or format.

Method Summary

Modifier and Type	Method and Description
F	applyReverse(T source) Transforms a give (transformed object) back into the source value and/or format.
default BidiFunction<T,F>	invert() Returns a new BidiFunction that transforms in exactly the different directions.
static <F,T> BidiFunction<F,T>	of(java.util.function.Function<F,T> forwardFunction, java.util.function.Function<T,F> backwardFunction) Creates a new BidiFunction from two given Functions (which should perform contrary operations).

Methods inherited from interface java.util.function.Function

andThen, apply, compose, identity

Method Detail

applyReverse

F applyReverse(T source)

Transforms a give (transformed object) back into the source value and/or format.

Parameters:

source - the source object to be transformed back

Returns:

the back-transformed object

invert

default BidiFunction<T,F> invert()

Returns a new BidiFunction that transforms in exactly the different directions.

Returns:

an inverted version of this BidiFunction

of

static <F,T> BidiFunction<F,T> of(java.util.function.Function<F,T> forwardFunction,
                                  java.util.function.Function<T,F> backwardFunction)

Creates a new BidiFunction from two given Functions (which should perform contrary operations).

Type Parameters:

F - the "from" or source type

T - the "to" or target type

Parameters:

forwardFunction - the "forward" Function

backwardFunction - the "backward" Function which should perform the contrary operation to the "forward" one

Returns:

a resulting BidiFunction