org.wandora.utils

Class Functional

java.lang.Object

org.wandora.utils.Functional

public class Functional
extends java.lang.Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	Functional.Fn0<R>
static interface	Functional.Fn1<R,T0>
static interface	Functional.Fn2<R,T0,T1>
static interface	Functional.Fn3<R,T0,T1,T2>
static interface	Functional.Fn4<R,T0,T1,T2,T3>
static interface	Functional.Fn5<R,T0,T1,T2,T3,T4>
static interface	Functional.Pr0
static interface	Functional.Pr1<T0>
static interface	Functional.Pr2<T0,T1>

Constructor Summary

Constructors

Constructor and Description
Functional()

Method Summary

Modifier and Type	Method and Description
static <R,T0,T1> Functional.Fn1<Functional.Fn1<R,T1>,T0>	curry(Functional.Fn2<R,T0,T1> fn) curry :: ((a, b) -> c) -> a -> b -> c curry f x y = f (x, y)
static <R,T0,T1,T2> Functional.Fn1<Functional.Fn1<Functional.Fn1<R,T2>,T1>,T0>	curry(Functional.Fn3<R,T0,T1,T2> fn) curry :: ((a, b, c) -> d) -> a -> b -> c -> d curry f x y z = f (x, y, z)
static <R,T0,T1,T2,T3> Functional.Fn1<Functional.Fn1<Functional.Fn1<Functional.Fn1<R,T3>,T2>,T1>,T0>	curry(Functional.Fn4<R,T0,T1,T2,T3> fn)
static <R,T0,T1> Functional.Fn1<Functional.Fn1<R,T0>,T1>	flip(Functional.Fn1<Functional.Fn1<R,T1>,T0> fn) flip :: (a -> b -> c) -> b -> a -> c flip f y x = f x y
static <R,T0,T1> Functional.Fn2<R,T1,T0>	flip(Functional.Fn2<R,T0,T1> fn) flip :: ((a, b) -> c) -> (b, a) -> c flip f (y, x) = f (x, y)
static <R,T0> Functional.Fn0<R>	partial(Functional.Fn1<R,T0> fn, T0 t0)
static <R,T0,T1> Functional.Fn1<R,T1>	partial(Functional.Fn2<R,T0,T1> fn, T0 t0) partial :: ((a, b) -> c) -> a -> (b -> c) partial f x = \y -> f (x, y)
static <R,T0,T1,T2> Functional.Fn2<R,T1,T2>	partial(Functional.Fn3<R,T0,T1,T2> fn, T0 t0)
static <R,T0,T1,T2,T3> Functional.Fn3<R,T1,T2,T3>	partial(Functional.Fn4<R,T0,T1,T2,T3> fn, T0 t0)

Methods inherited from class java.lang.Object

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

Constructor Detail

Functional

public Functional()

Method Detail

partial

public static <R,T0> Functional.Fn0<R> partial(Functional.Fn1<R,T0> fn,
                                               T0 t0)

partial

public static <R,T0,T1> Functional.Fn1<R,T1> partial(Functional.Fn2<R,T0,T1> fn,
                                                     T0 t0)

partial :: ((a, b) -> c) -> a -> (b -> c) partial f x = \y -> f (x, y)

Parameters:

fn -

t0 -

Returns:

partial

public static <R,T0,T1,T2> Functional.Fn2<R,T1,T2> partial(Functional.Fn3<R,T0,T1,T2> fn,
                                                           T0 t0)

partial

public static <R,T0,T1,T2,T3> Functional.Fn3<R,T1,T2,T3> partial(Functional.Fn4<R,T0,T1,T2,T3> fn,
                                                                 T0 t0)

curry

public static <R,T0,T1> Functional.Fn1<Functional.Fn1<R,T1>,T0> curry(Functional.Fn2<R,T0,T1> fn)

curry :: ((a, b) -> c) -> a -> b -> c curry f x y = f (x, y)

Parameters:

fn -

Returns:

curry

public static <R,T0,T1,T2> Functional.Fn1<Functional.Fn1<Functional.Fn1<R,T2>,T1>,T0> curry(Functional.Fn3<R,T0,T1,T2> fn)

curry :: ((a, b, c) -> d) -> a -> b -> c -> d curry f x y z = f (x, y, z)

Parameters:

fn -

Returns:

curry

public static <R,T0,T1,T2,T3> Functional.Fn1<Functional.Fn1<Functional.Fn1<Functional.Fn1<R,T3>,T2>,T1>,T0> curry(Functional.Fn4<R,T0,T1,T2,T3> fn)

flip

public static <R,T0,T1> Functional.Fn2<R,T1,T0> flip(Functional.Fn2<R,T0,T1> fn)

flip :: ((a, b) -> c) -> (b, a) -> c flip f (y, x) = f (x, y)

Parameters:

fn -

Returns:

flip

public static <R,T0,T1> Functional.Fn1<Functional.Fn1<R,T0>,T1> flip(Functional.Fn1<Functional.Fn1<R,T1>,T0> fn)

flip :: (a -> b -> c) -> b -> a -> c flip f y x = f x y

Parameters:

fn -

Returns: