Package com.jnape.palatable.lambda.functions.builtin.fn1

Class Constantly<A,B>

java.lang.Object

com.jnape.palatable.lambda.functions.builtin.fn1.Constantly<A,B>

Type Parameters:

A - The first argument type, and the the function's return type

B - The second (ignored) argument type

All Implemented Interfaces:

Fn1<A,Fn1<B,A>>, Fn2<A,B,A>, Applicative<Fn1<B,A>,Fn1<A,?>>, Cartesian<A,Fn1<B,A>,Fn1<?,?>>, Cocartesian<A,Fn1<B,A>,Fn1<?,?>>, Contravariant<A,Profunctor<?,Fn1<B,A>,Fn1<?,?>>>, Functor<Fn1<B,A>,Fn1<A,?>>, Profunctor<A,Fn1<B,A>,Fn1<?,?>>, Monad<Fn1<B,A>,Fn1<A,?>>, MonadReader<A,Fn1<B,A>,Fn1<A,?>>, MonadRec<Fn1<B,A>,Fn1<A,?>>, MonadWriter<A,Fn1<B,A>,Fn1<A,?>>

public final class Constantly<A,B>
extends java.lang.Object
implements Fn2<A,B,A>

A function that takes two arguments and always returns the first argument.

Field Summary

Fields

Modifier and Type	Field	Description
private static Constantly<?,?>	INSTANCE

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Constantly()

Method Summary

Modifier and Type	Method	Description
A	checkedApply(A a, B b)
static <A,B> Constantly<A,B>	constantly()
static <A,B> Fn1<B,A>	constantly(A a)
static <A,B> A	constantly(A a, B b)

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.jnape.palatable.lambda.functions.Fn1

andThen, carry, cartesian, censor, choose, cocartesian, diMap, diMapR, discardL, flatMap, fmap, lazyZip, listens, local, pure, self, thunk, toFunction, trampolineM, zip, zip

Methods inherited from interface com.jnape.palatable.lambda.functions.Fn2

apply, apply, checkedApply, compose, contraMap, diMapL, discardR, flip, toBiFunction, uncurry, widen

Methods inherited from interface com.jnape.palatable.lambda.functor.Functor

coerce

Field Detail

INSTANCE

private static final Constantly<?,?> INSTANCE

Constructor Detail

Constantly

private Constantly()

Method Detail

checkedApply

public A checkedApply(A a,
                      B b)

Specified by:

checkedApply in interface Fn2<A,B,A>

constantly

public static <A,B> Constantly<A,B> constantly()

constantly

public static <A,B> Fn1<B,A> constantly(A a)

constantly

public static <A,B> A constantly(A a,
                                       B b)