Package com.jnape.palatable.lambda.monoid.builtin

Class MergeMaps<K,V>

java.lang.Object

com.jnape.palatable.lambda.monoid.builtin.MergeMaps<K,V>

Type Parameters:

K - The key parameter type of the Map

V - The value parameter type of the Map

All Implemented Interfaces:

Fn1<Fn0<java.util.Map<K,V>>,Fn1<Semigroup<V>,Fn1<java.util.Map<K,V>,Fn1<java.util.Map<K,V>,java.util.Map<K,V>>>>>, Fn2<Fn0<java.util.Map<K,V>>,Semigroup<V>,Fn1<java.util.Map<K,V>,Fn1<java.util.Map<K,V>,java.util.Map<K,V>>>>, Fn3<Fn0<java.util.Map<K,V>>,Semigroup<V>,java.util.Map<K,V>,Fn1<java.util.Map<K,V>,java.util.Map<K,V>>>, Fn4<Fn0<java.util.Map<K,V>>,Semigroup<V>,java.util.Map<K,V>,java.util.Map<K,V>,java.util.Map<K,V>>, BiMonoidFactory<Fn0<java.util.Map<K,V>>,Semigroup<V>,java.util.Map<K,V>>, BiSemigroupFactory<Fn0<java.util.Map<K,V>>,Semigroup<V>,java.util.Map<K,V>>, Applicative<Fn1<Semigroup<V>,Fn1<java.util.Map<K,V>,Fn1<java.util.Map<K,V>,java.util.Map<K,V>>>>,Fn1<Fn0<java.util.Map<K,V>>,?>>, Cartesian<Fn0<java.util.Map<K,V>>,Fn1<Semigroup<V>,Fn1<java.util.Map<K,V>,Fn1<java.util.Map<K,V>,java.util.Map<K,V>>>>,Fn1<?,?>>, Cocartesian<Fn0<java.util.Map<K,V>>,Fn1<Semigroup<V>,Fn1<java.util.Map<K,V>,Fn1<java.util.Map<K,V>,java.util.Map<K,V>>>>,Fn1<?,?>>, Contravariant<Fn0<java.util.Map<K,V>>,Profunctor<?,Fn1<Semigroup<V>,Fn1<java.util.Map<K,V>,Fn1<java.util.Map<K,V>,java.util.Map<K,V>>>>,Fn1<?,?>>>, Functor<Fn1<Semigroup<V>,Fn1<java.util.Map<K,V>,Fn1<java.util.Map<K,V>,java.util.Map<K,V>>>>,Fn1<Fn0<java.util.Map<K,V>>,?>>, Profunctor<Fn0<java.util.Map<K,V>>,Fn1<Semigroup<V>,Fn1<java.util.Map<K,V>,Fn1<java.util.Map<K,V>,java.util.Map<K,V>>>>,Fn1<?,?>>, Monad<Fn1<Semigroup<V>,Fn1<java.util.Map<K,V>,Fn1<java.util.Map<K,V>,java.util.Map<K,V>>>>,Fn1<Fn0<java.util.Map<K,V>>,?>>, MonadReader<Fn0<java.util.Map<K,V>>,Fn1<Semigroup<V>,Fn1<java.util.Map<K,V>,Fn1<java.util.Map<K,V>,java.util.Map<K,V>>>>,Fn1<Fn0<java.util.Map<K,V>>,?>>, MonadRec<Fn1<Semigroup<V>,Fn1<java.util.Map<K,V>,Fn1<java.util.Map<K,V>,java.util.Map<K,V>>>>,Fn1<Fn0<java.util.Map<K,V>>,?>>, MonadWriter<Fn0<java.util.Map<K,V>>,Fn1<Semigroup<V>,Fn1<java.util.Map<K,V>,Fn1<java.util.Map<K,V>,java.util.Map<K,V>>>>,Fn1<Fn0<java.util.Map<K,V>>,?>>

public final class MergeMaps<K,V>
extends java.lang.Object
implements BiMonoidFactory<Fn0<java.util.Map<K,V>>,Semigroup<V>,java.util.Map<K,V>>

A Monoid instance formed by Map.merge(Object, Object, BiFunction) and a semigroup over V. Combines together multiple maps using the provided semigroup for key collisions.

See Also:

Monoid, Map

Field Summary

Fields

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

Constructor Summary

Constructors

Modifier	Constructor	Description
private	MergeMaps()

Method Summary

Modifier and Type	Method	Description
Monoid<java.util.Map<K,V>>	checkedApply(Fn0<java.util.Map<K,V>> mFn0, Semigroup<V> semigroup)
static <K,V> MergeMaps<K,V>	mergeMaps()
static <K,V> MonoidFactory<Semigroup<V>,java.util.Map<K,V>>	mergeMaps(Fn0<java.util.Map<K,V>> mFn0)
static <K,V> Monoid<java.util.Map<K,V>>	mergeMaps(Fn0<java.util.Map<K,V>> mFn0, Semigroup<V> semigroup)
static <K,V> Fn1<java.util.Map<K,V>,java.util.Map<K,V>>	mergeMaps(Fn0<java.util.Map<K,V>> mFn0, Semigroup<V> semigroup, java.util.Map<K,V> x)
static <K,V> java.util.Map<K,V>	mergeMaps(Fn0<java.util.Map<K,V>> mFn0, Semigroup<V> semigroup, java.util.Map<K,V> x, java.util.Map<K,V> y)

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.specialized.BiMonoidFactory

apply, apply, checkedApply, flip, uncurry

Methods inherited from interface com.jnape.palatable.lambda.functions.specialized.BiSemigroupFactory

checkedApply

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

toBiFunction

Methods inherited from interface com.jnape.palatable.lambda.functions.Fn4

apply, apply, checkedApply, compose, contraMap, diMapL, discardR, widen

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

coerce

Field Detail

INSTANCE

private static final MergeMaps<?,?> INSTANCE

Constructor Detail

MergeMaps

private MergeMaps()

Method Detail

checkedApply

public Monoid<java.util.Map<K,V>> checkedApply(Fn0<java.util.Map<K,V>> mFn0,
                                                     Semigroup<V> semigroup)

Description copied from interface: Fn3

Specified by:

checkedApply in interface BiMonoidFactory<Fn0<java.util.Map<K,V>>,Semigroup<V>,java.util.Map<K,V>>

Specified by:

checkedApply in interface BiSemigroupFactory<Fn0<java.util.Map<K,V>>,Semigroup<V>,java.util.Map<K,V>>

Specified by:

checkedApply in interface Fn2<Fn0<java.util.Map<K,V>>,Semigroup<V>,Fn1<java.util.Map<K,V>,Fn1<java.util.Map<K,V>,java.util.Map<K,V>>>>

Specified by:

checkedApply in interface Fn3<Fn0<java.util.Map<K,V>>,Semigroup<V>,java.util.Map<K,V>,Fn1<java.util.Map<K,V>,java.util.Map<K,V>>>

mergeMaps

public static <K,V> MergeMaps<K,V> mergeMaps()

mergeMaps

public static <K,V> MonoidFactory<Semigroup<V>,java.util.Map<K,V>> mergeMaps(Fn0<java.util.Map<K,V>> mFn0)

mergeMaps

public static <K,V> Monoid<java.util.Map<K,V>> mergeMaps(Fn0<java.util.Map<K,V>> mFn0,
                                                                     Semigroup<V> semigroup)

mergeMaps

public static <K,V> Fn1<java.util.Map<K,V>,java.util.Map<K,V>> mergeMaps(Fn0<java.util.Map<K,V>> mFn0,
                                                                                                 Semigroup<V> semigroup,
                                                                                                 java.util.Map<K,V> x)

mergeMaps

public static <K,V> java.util.Map<K,V> mergeMaps(Fn0<java.util.Map<K,V>> mFn0,
                                                             Semigroup<V> semigroup,
                                                             java.util.Map<K,V> x,
                                                             java.util.Map<K,V> y)