Javaslang
Immutables
Javaslang | Immutables | |
---|---|---|
8 | 6 | |
5,534 | 3,368 | |
0.5% | 0.2% | |
4.0 | 7.1 | |
4 months ago | 2 months ago | |
Java | Java | |
Apache License, Version 2.0 | Apache License 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.
Immutables
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Unchecked Java: Say Goodbye to Checked Exceptions Forever
This is every Lombok lover's favorite strawman argument I've run into.
I've been coding in Java professionally for ~20 years. I can count with zero hands the number of times I've been burned by a getter or setter getting changed into something surprising.
If you really need auto-generated getters/setters/builders - Immutables [1] is a library that does it using bog standard annotation processing rules that don't require hacking your build process.
[1] https://github.com/immutables/immutables
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[ANN] RecordBuilder v33 Released
https://github.com/immutables/immutables/issues/1358 https://bugs.openjdk.java.net/browse/JDK-8281238
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ExpressiveJava: Re-implementing a simple Scala interpreter in JDK 8/15/17. JDK 17 code nearly identical with use of Records + Pattern Matching + Sealed Types.
That's good, but I prefer this : https://github.com/immutables/immutables It has all sorts of neat stuff like lazy, defered, cached, defaults etc. Just needs updating to use records.
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Stop using noargsconstructors and setters (and builders)
Not bad :) I like using Immutables (which is backed by the style of implementation referenced in the link in https://github.com/immutables/immutables/issues/450)
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If you could change one thing in the Java and one thing in the JVM, what would you change?
Annotation processors? Like Immutables? Those already exists, but the major difference is that an annotation processor cannot change the processed class, but has to create another one.
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Popular technologies for a full-stack Java developer
While you鈥檙e looking into this I would highly recommend checking out immutables. https://github.com/immutables/immutables It is pretty popular in the industry and very nice!
What are some alternatives?
Functional Java - Backport of Java 8's lambda expressions to Java 7, 6 and 5
Lombok - Very spicy additions to the Java programming language.
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.
Auto - A collection of source code generators for Java.
cyclops-react - An advanced, but easy to use, platform for writing functional applications in Java 8.
AspectJ
位 - Functional patterns for Java
jsonschema2pojo - Generate Java types from JSON or JSON Schema and annotate those types for data-binding with Jackson, Gson, etc
underscore-java - java port of Underscore.js
Spring Loaded - Java agent that enables class reloading in a running JVM
StreamEx - Enhancing Java Stream API
JHipster - JHipster, much like Spring initializr, is a generator to create a boilerplate backend application, but also with an integrated front end implementation in React, Vue or Angular. In their own words, it "Is a development platform to quickly generate, develop, & deploy modern web applications & microservice architectures."