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‎CHANGELOG.md

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@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
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The format is based on [Keep a Changelog](http://keepachangelog.com/).
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## [Unreleased]
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### Added
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- `MergeMaps`, a `Monoid` on `Map` formed by `Map#merge`
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## [3.2.0] - 2018-12-08
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### Changed
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- ***Breaking Change***: `Difference` and `Intersection` no longer instances of `Semigroup` and moved to `functions.builtin.fn2` package
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- ***Breaking Change***: `Absent` moved to `semigroup.builtin` package
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- `Monadic/Dyadic/TriadicFunction`, `Predicate`, `Tuple2`, `Tuple3`
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- `Functor`, `BiFunctor`, `ProFunctor`
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[Unreleased]: https://github.com/palatable/lambda/compare/lambda-3.1.0...HEAD
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[Unreleased]: https://github.com/palatable/lambda/compare/lambda-3.2.0...HEAD
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[3.2.0]: https://github.com/palatable/lambda/compare/lambda-3.1.0...lambda-3.2.0
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[3.1.0]: https://github.com/palatable/lambda/compare/lambda-3.0.3...lambda-3.1.0
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[3.0.3]: https://github.com/palatable/lambda/compare/lambda-3.0.2...lambda-3.0.3
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[3.0.2]: https://github.com/palatable/lambda/compare/lambda-3.0.1...lambda-3.0.2

‎README.md

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@@ -57,14 +57,14 @@ Add the following dependency to your:
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<dependency>
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<groupId>com.jnape.palatable</groupId>
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<artifactId>lambda</artifactId>
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<version>3.1.0</version>
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<version>3.2.0</version>
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</dependency>
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```
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`build.gradle` ([Gradle](https://docs.gradle.org/current/userguide/dependency_management.html)):
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```gradle
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compile group: 'com.jnape.palatable', name: 'lambda', version: '3.1.0'
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compile group: 'com.jnape.palatable', name: 'lambda', version: '3.2.0'
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```
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<a name="examples">Examples</a>

‎src/main/java/com/jnape/palatable/lambda/monoid/builtin/MergeMaps.java

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* @see Monoid
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* @see java.util.Map
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*/
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public class MergeMaps<K, V> implements BiMonoidFactory<Supplier<Map<K, V>>, Semigroup<V>, Map<K, V>> {
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public final class MergeMaps<K, V> implements BiMonoidFactory<Supplier<Map<K, V>>, Semigroup<V>, Map<K, V>> {
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private static final MergeMaps INSTANCE = new MergeMaps();
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private MergeMaps() {
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}
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}, mSupplier);
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}
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public static <A, B> MergeMaps<A, B> mergeMaps() {
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return new MergeMaps<>();
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@SuppressWarnings("unchecked")
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public static <K, V> MergeMaps<K, V> mergeMaps() {
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return INSTANCE;
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}
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public static <A, B> MonoidFactory<Semigroup<B>, Map<A, B>> mergeMaps(Supplier<Map<A, B>> mSupplier) {
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return MergeMaps.<A, B>mergeMaps().apply(mSupplier);
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public static <K, V> MonoidFactory<Semigroup<V>, Map<K, V>> mergeMaps(Supplier<Map<K, V>> mSupplier) {
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return MergeMaps.<K, V>mergeMaps().apply(mSupplier);
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}
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public static <A, B> Monoid<Map<A, B>> mergeMaps(Supplier<Map<A, B>> mSupplier, Semigroup<B> semigroup) {
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public static <K, V> Monoid<Map<K, V>> mergeMaps(Supplier<Map<K, V>> mSupplier, Semigroup<V> semigroup) {
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return mergeMaps(mSupplier).apply(semigroup);
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}
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public static <A, B> Fn1<Map<A, B>, Map<A, B>> mergeMaps(Supplier<Map<A, B>> mSupplier, Semigroup<B> semigroup, Map<A, B> x) {
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public static <K, V> Fn1<Map<K, V>, Map<K, V>> mergeMaps(Supplier<Map<K, V>> mSupplier, Semigroup<V> semigroup,
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Map<K, V> x) {
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return mergeMaps(mSupplier, semigroup).apply(x);
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}
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public static <A, B> Map<A, B> mergeMaps(Supplier<Map<A, B>> mSupplier, Semigroup<B> semigroup, Map<A, B> x, Map<A, B> y) {
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public static <K, V> Map<K, V> mergeMaps(Supplier<Map<K, V>> mSupplier, Semigroup<V> semigroup, Map<K, V> x,
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Map<K, V> y) {
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return mergeMaps(mSupplier, semigroup, x).apply(y);
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}
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}

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