Gradle VS Drools

A ("shared") build service is kind of like a singleton, in that when you register one in any project, it's available in all projects as a single instance. (This unfortunately turns out not to be true, in some cases, when using composite builds, but can be worked around.) An actual singleton (global static instance) doesn't work at all, for the record—try it if you want to lose some sanity. Anyway, use a build service whenever you need global mutable state in your build.

When using build tools like Maven or Gradle, you can configure environment variables in the build scripts or configuration files.

For large projects, purpose-made build tools such as Gradle and Maven are preferred for managing the directory structure since they introduce additional semantics for managing test code and other programming languages (among lots of other things). Most IDEs can integrate with these build tools easily. If you're just starting out though, I wouldn't worry too much about these, you can visit them later.

Project Build and Management: Apache Maven 3 (3.9.5), Gradle 8 (8.3)

No wonder this had been raised previously, https://github.com/gradle/gradle/issues/15383

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The details regarding the code compiling would vary from one project to another. For that project, it seems that it uses Gradle (a helper tool) for compiling. Check Gradle's documentation for more information.

At the moment, Java 20 is the latest version, but Java 17 is the latest LTS release. It's usually best to use an LTS release, because the latest releases won't be widely supported. And that's true of Gradle too. You're using Gradle 8.0, but not even the latest version of Gradle (8.2) fully supports Java 20. You'll have to wait for Gradle 8.3 to use Java 20.

I've met a few young programmers who heard somewhere that object-oriented programming was bad and they want to get the enlightenment of functional programming that they've heard about. Frequently they travel from job to job like itinerant martial artists always looking for somewhere where they practice the true technique but they always seem disappointed as it is just as easy if not easier to screw up handling errors with monads than it is with exceptions and they find analogies like "a monad is like a burrito" just get them more confused.

As for something profound I'd point you to

https://github.com/cerner/clara-rules

which many people will struggle with because like many other production rules engines in LISP (and many other examples of simple compilers), there is hardly any code! Contrast that to the orders of magnitude larger rules engine Drools

https://github.com/kiegroup/drools

which is so crazy-complicated primarily because the Drools language is Java-based so you need all sorts of things that Clara or CLIPS don't need.

IMHO you're better off using something like https://www.drools.org/ for this. Non-devs writing code is a pipe-dream. It never works out.

https://www.drools.org/ an open source solution that allows you to use the UI to define rules. You can even import excel files.

Hi all, I am doing a project in rust right now (a web server with axum, postgres, redis), and am in need of a good rule engine like Drools in java (https://www.drools.org/). From what I have searched, I couldn't find any that are well maintained or provide similar levels of functionality.

Also ... https://www.drools.org/

Drools - Drools - Business Rules Management System (Java™, Open Source)

Drools (a Business Rule Engine),

Hopefully you already know that Drools is a business rules management system. You write rules in either "drl" syntax, in spreadsheets, or in glorified flowcharts, and then let your application throw data at it.