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 Object
implements Fn2<A,B,A>

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

Method Summary

Modifier and Type	Method and 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.Fn2

apply, apply, checkedApply, compose, contraMap, curried, curry, diMapL, discardR, flip, fn2, fromBiFunction, toBiFunction, uncurry, widen

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

andThen, carry, cartesian, censor, choose, cocartesian, diMap, diMapR, discardL, flatMap, fmap, fn1, fromFunction, lazyZip, listens, local, pure, pureFn1, thunk, toFunction, trampolineM, zip, zip

Methods inherited from interface com.jnape.palatable.lambda.monad.Monad

join

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

coerce

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)