com.jnape.palatable.lambda.functions.builtin.fn3

Class LTBy<A,B extends Comparable<B>>

java.lang.Object

com.jnape.palatable.lambda.functions.builtin.fn3.LTBy<A,B>

Type Parameters:

A - the value type

B - the mapped comparison type

All Implemented Interfaces:

Fn1<Fn1<? super A,? extends B>,Fn1<A,Fn1<A,Boolean>>>, Fn2<Fn1<? super A,? extends B>,A,Fn1<A,Boolean>>, Fn3<Fn1<? super A,? extends B>,A,A,Boolean>, Applicative<Fn1<A,Fn1<A,Boolean>>,Fn1<Fn1<? super A,? extends B>,?>>, Cartesian<Fn1<? super A,? extends B>,Fn1<A,Fn1<A,Boolean>>,Fn1<?,?>>, Cocartesian<Fn1<? super A,? extends B>,Fn1<A,Fn1<A,Boolean>>,Fn1<?,?>>, Contravariant<Fn1<? super A,? extends B>,Profunctor<?,Fn1<A,Fn1<A,Boolean>>,Fn1<?,?>>>, Functor<Fn1<A,Fn1<A,Boolean>>,Fn1<Fn1<? super A,? extends B>,?>>, Profunctor<Fn1<? super A,? extends B>,Fn1<A,Fn1<A,Boolean>>,Fn1<?,?>>, Monad<Fn1<A,Fn1<A,Boolean>>,Fn1<Fn1<? super A,? extends B>,?>>, MonadReader<Fn1<? super A,? extends B>,Fn1<A,Fn1<A,Boolean>>,Fn1<Fn1<? super A,? extends B>,?>>, MonadRec<Fn1<A,Fn1<A,Boolean>>,Fn1<Fn1<? super A,? extends B>,?>>, MonadWriter<Fn1<? super A,? extends B>,Fn1<A,Fn1<A,Boolean>>,Fn1<Fn1<? super A,? extends B>,?>>

public final class LTBy<A,B extends Comparable<B>>
extends Object
implements Fn3<Fn1<? super A,? extends B>,A,A,Boolean>

Given a mapping function from some type A to some Comparable type B and two values of type A, return true if the second value is strictly less than the first value in terms of their mapped B results; otherwise, return false.

See Also:

LT, GTBy

Method Summary

Modifier and Type	Method and Description
BiPredicate<A,A>	apply(Fn1<? super A,? extends B> compareFn) Partially apply this function by taking its first argument.
Predicate<A>	apply(Fn1<? super A,? extends B> compareFn, A y) Partially apply this function by taking its first two arguments.
Boolean	checkedApply(Fn1<? super A,? extends B> compareFn, A y, A x)
static <A,B extends Comparable<B>> LTBy<A,B>	ltBy()
static <A,B extends Comparable<B>> BiPredicate<A,A>	ltBy(Fn1<? super A,? extends B> fn)
static <A,B extends Comparable<B>> Predicate<A>	ltBy(Fn1<? super A,? extends B> fn, A y)
static <A,B extends Comparable<B>> Boolean	ltBy(Fn1<? super A,? extends B> fn, A y, A x)

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.Fn3

apply, checkedApply, compose, contraMap, diMapL, discardR, flip, fn3, fn3, fn3, uncurry, widen

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

checkedApply, curried, curry, fn2, fromBiFunction, toBiFunction

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 Boolean checkedApply(Fn1<? super A,? extends B> compareFn,
                            A y,
                            A x)

Specified by:

checkedApply in interface Fn3<Fn1<? super A,? extends B extends Comparable<B>>,A,A,Boolean>

apply

public BiPredicate<A,A> apply(Fn1<? super A,? extends B> compareFn)

Description copied from interface: Fn3

Partially apply this function by taking its first argument.

Specified by:

apply in interface Fn1<Fn1<? super A,? extends B extends Comparable<B>>,Fn1<A,Fn1<A,Boolean>>>

Specified by:

apply in interface Fn2<Fn1<? super A,? extends B extends Comparable<B>>,A,Fn1<A,Boolean>>

Specified by:

apply in interface Fn3<Fn1<? super A,? extends B extends Comparable<B>>,A,A,Boolean>

Parameters:

compareFn - the first argument

Returns:

an Fn2<B, C, D>

apply

public Predicate<A> apply(Fn1<? super A,? extends B> compareFn,
                          A y)

Description copied from interface: Fn3

Partially apply this function by taking its first two arguments.

Specified by:

apply in interface Fn2<Fn1<? super A,? extends B extends Comparable<B>>,A,Fn1<A,Boolean>>

Specified by:

apply in interface Fn3<Fn1<? super A,? extends B extends Comparable<B>>,A,A,Boolean>

Parameters:

compareFn - the first argument

y - the second argument

Returns:

an Fn1<C, D>

ltBy

public static <A,B extends Comparable<B>> LTBy<A,B> ltBy()

ltBy

public static <A,B extends Comparable<B>> BiPredicate<A,A> ltBy(Fn1<? super A,? extends B> fn)

ltBy

public static <A,B extends Comparable<B>> Predicate<A> ltBy(Fn1<? super A,? extends B> fn,
                                                            A y)

ltBy

public static <A,B extends Comparable<B>> Boolean ltBy(Fn1<? super A,? extends B> fn,
                                                       A y,
                                                       A x)