Class And

java.lang.Object

com.jnape.palatable.lambda.monoid.builtin.And

All Implemented Interfaces:

Fn1<Boolean, Fn1<Boolean,Boolean>>, Fn2<Boolean,Boolean,Boolean>, BiPredicate<Boolean,Boolean>, Applicative<Fn1<Boolean,Boolean>, Fn1<Boolean,?>>, Cartesian<Boolean, Fn1<Boolean,Boolean>, Fn1<?,?>>, Cocartesian<Boolean, Fn1<Boolean,Boolean>, Fn1<?,?>>, Contravariant<Boolean, Profunctor<?, Fn1<Boolean,Boolean>, Fn1<?,?>>>, Functor<Fn1<Boolean,Boolean>, Fn1<Boolean,?>>, Profunctor<Boolean, Fn1<Boolean,Boolean>, Fn1<?,?>>, Monad<Fn1<Boolean,Boolean>, Fn1<Boolean,?>>, MonadReader<Boolean, Fn1<Boolean,Boolean>, Fn1<Boolean,?>>, MonadRec<Fn1<Boolean,Boolean>, Fn1<Boolean,?>>, MonadWriter<Boolean, Fn1<Boolean,Boolean>, Fn1<Boolean,?>>, Monoid<Boolean>, Semigroup<Boolean>

public final class And
extends Object
implements Monoid<Boolean>, BiPredicate<Boolean,Boolean>

A Monoid instance formed by Boolean. Equivalent to logical &&.

See Also:

• Or
• Monoid

Field Summary

Fields

Modifier and Type	Field	Description
private static final And	INSTANCE

Constructor Summary

Constructors

Modifier	Constructor	Description
private	And()

Method Summary

Modifier and Type	Method	Description
static And	and()
static Fn1<Boolean,Boolean>	and(Boolean x)
static Boolean	and(Boolean x, Boolean y)
Boolean	checkedApply(Boolean x, Boolean y)
And	flip()	Flip the order of the arguments.
<B> Boolean	foldMap(Fn1<? super B, ? extends Boolean> fn, Iterable<B> bs)	Homomorphism combined with catamorphism.
Boolean	identity()	The identity element of this monoid.

Methods inherited from class Object

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

Methods inherited from interface BiPredicate

and, apply, contraMap, diMapL, discardR, negate, or, toBiPredicate, uncurry

Methods inherited from interface 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 Fn2

apply, checkedApply, compose, toBiFunction, widen

Methods inherited from interface Functor

coerce

Methods inherited from interface Monoid

foldLeft, foldRight, reduceLeft, reduceRight

Field Details

INSTANCE

private static final And INSTANCE

Constructor Details

And

private And()

Method Details

identity

public Boolean identity()

Description copied from interface: Monoid

The identity element of this monoid.

Specified by:

identity in interface Monoid<Boolean>

Returns:

the identity

checkedApply

public Boolean checkedApply(Boolean x,
 Boolean y)

Specified by:

checkedApply in interface Fn2<Boolean,Boolean,Boolean>

foldMap

public <B> Boolean foldMap(Fn1<? super B, ? extends Boolean> fn,
 Iterable<B> bs)

Description copied from interface: Monoid

Homomorphism combined with catamorphism. Convert an Iterable<B> to an Iterable<A> (that is, an Iterable of elements this monoid is formed over), then reduce the result from left to right. Under algebraic data types, this is isomorphic to a flatMap.

Specified by:

foldMap in interface Monoid<Boolean>

Type Parameters:

B - the input Iterable element type

Parameters:

fn - the mapping function from A to B

bs - the Iterable of Bs

Returns:

the folded result under this Monoid

See Also:

• Map
• Monoid.reduceLeft(Iterable)

flip

public And flip()

Description copied from interface: Monoid

Flip the order of the arguments.

Specified by:

flip in interface BiPredicate<Boolean,Boolean>

Specified by:

flip in interface Fn2<Boolean,Boolean,Boolean>

Specified by:

flip in interface Monoid<Boolean>

Specified by:

flip in interface Semigroup<Boolean>

Returns:

an Fn2<B, A, C>

and

public static And and()

and

public static Fn1<Boolean,Boolean> and(Boolean x)

and

public static Boolean and(Boolean x,
 Boolean y)