Javaslang
Javaslang | spring-data-arrow | |
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8 | 2 | |
5,534 | 1 | |
0.5% | - | |
4.0 | 2.6 | |
4 months ago | about 3 years ago | |
Java | Kotlin | |
Apache License, Version 2.0 | - |
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Javaslang
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Can I use Scala if my teammates are using Java in a project?
If you want to cut down on code verbosity in Java, I recommend instead looking into using Java 17 (records), and/or the Vavr library (port of some Scala standard library approaches to Java). https://github.com/vavr-io/vavr
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Typeclasses explained in Java
If I managed to gain you interest you can take a look at one of the following libraries like cats, scalaz for scala and vavr for java which contain type class definitions and implementations for common types.
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What is your favourite Java specific feature that you miss in other languages?
I'm aware not everyone likes it, but vavr has these.
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Best Functional Library for Java ? And do you recommend going for a functional style in Java?
https://github.com/vavr-io/vavr/releases showed Vavr 0.10.4 from July 2021 as latest release. 馃し
- Examine why HashMap is slow (2015)
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Z: Point-free programming in Java
I would like to see a more fully-functional tool set available in Java itself. (Functors, Applicatives, Monads, Arrows, and more) Vavr is kind of doing that, but also kind of not really. Scala has all of that, and Scala is fun for sure, but it brings in a lot of baggage for interop. (Sometimes that's not a great choice, e.g. for an old legacy project)
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Your own custom Spring Data repository
Functional Programming is becoming more and more popular. Spring provides a couple of DSLs for the Kotlin language. For example, the Beans DSL and the Routes DSL allow for a more functional approach toward Spring configuration. On the type side, Vavr (previously Javaslang) is pretty popular in Java, while Kotlin has Arrow.
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Java 16 / JDK 16: General Availability
Or perhaps they could implement it like String. String has mutators but they don鈥檛 change the original value. To get the modified one, assign it to another variable. Another example is the collection framework of vavr.
spring-data-arrow
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Your own custom Spring Data repository
The complete source code for this post can be found on Github in Maven format.
What are some alternatives?
Functional Java - Backport of Java 8's lambda expressions to Java 7, 6 and 5
Kategory - 螞rrow - Functional companion to Kotlin's Standard Library
jOO位 - jOO位 - The Missing Parts in Java 8 jOO位 improves the JDK libraries in areas where the Expert Group's focus was elsewhere. It adds tuple support, function support, and a lot of additional functionality around sequential Streams. The JDK 8's main efforts (default methods, lambdas, and the Stream API) were focused around maintaining backwards compatibility and implementing a functional API for parallelism.
cyclops-react - An advanced, but easy to use, platform for writing functional applications in Java 8.
位 - Functional patterns for Java
underscore-java - java port of Underscore.js
StreamEx - Enhancing Java Stream API
Fugue
Immutables - Annotation processor to create immutable objects and builders. Feels like Guava's immutable collections but for regular value objects. JSON, Jackson, Gson, JAX-RS integrations included
Eclipse Collections - Eclipse Collections is a collections framework for Java with optimized data structures and a rich, functional and fluent API.
derive4j - Java 8 annotation processor and framework for deriving algebraic data types constructors, pattern-matching, folds, optics and typeclasses.