λ
Functional patterns for Java (by palatable)
jOOλ
jOOλ - The Missing Parts in Java 8 jOOλ 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. (by jOOQ)
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| λ | jOOλ | |
|---|---|---|
| 1 | 2 | |
| 855 | 2,056 | |
| -0.1% | 0.4% | |
| 3.4 | 1.7 | |
| 12 months ago | 10 months ago | |
| Java | Java | |
| MIT License | Apache License 2.0 |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
λ
Posts with mentions or reviews of λ.
We have used some of these posts to build our list of alternatives
and similar projects.
jOOλ
Posts with mentions or reviews of jOOλ.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-01-27.
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To use Java Collections or another collections library? (Eclipse, Guava, Apache)
Jool has tuples and lots of extra niceties for working with streams, and I thing it has smaller surface than vavr. You have a method zipWithIndex than allows you to do
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Exceptions and Streams
Introducing the Unchecked.function() from the jool library that does EXACTLY what we did above. Using it, the final code looks like:
What are some alternatives?
When comparing λ and jOOλ you can also consider the following projects:
Javaslang - vʌvr (formerly called Javaslang) is a non-commercial, non-profit object-functional library that runs with Java 8+. It aims to reduce the lines of code and increase code quality.
StreamEx - Enhancing Java Stream API
Functional Java - Backport of Java 8's lambda expressions to Java 7, 6 and 5
derive4j - Java 8 annotation processor and framework for deriving algebraic data types constructors, pattern-matching, folds, optics and typeclasses.
underscore-java - java port of Underscore.js
cyclops-react - An advanced, but easy to use, platform for writing functional applications in Java 8.
protonpack - Stream utilities for Java 8