easy-rules | The simple , stupid rules engine for Java | Rule Engine library

by j-easy Java Version: easy-rules-4.1.0 License: MIT

X-Ray Key Features Code Snippets Community Discussions(1)Vulnerabilities Install Support

kandi X-RAY | easy-rules Summary

easy-rules is a Java library typically used in Server, Rule Engine applications. easy-rules has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has high support. You can download it from GitHub, Maven.

Easy Rules is a Java rules engine inspired by an article called "Should I use a Rules Engine?" of Martin Fowler in which Martin says:. You can build a simple rules engine yourself. All you need is to create a bunch of objects with conditions and actions, store them in a collection, and run through them to evaluate the conditions and execute the actions. This is exactly what Easy Rules does, it provides the Rule abstraction to create rules with conditions and actions, and the RulesEngine API that runs through a set of rules to evaluate conditions and execute actions.

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Quality

Security

License

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Support

easy-rules has a highly active ecosystem.

It has 4452 star(s) with 981 fork(s). There are 220 watchers for this library.

It had no major release in the last 12 months.

There are 65 open issues and 273 have been closed. On average issues are closed in 29 days. There are 6 open pull requests and 0 closed requests.

It has a positive sentiment in the developer community.

The latest version of easy-rules is easy-rules-4.1.0

Quality

easy-rules has 0 bugs and 0 code smells.

Security

easy-rules has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

easy-rules code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

easy-rules is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

easy-rules releases are available to install and integrate.

Deployable package is available in Maven.

Build file is available. You can build the component from source.

Installation instructions are not available. Examples and code snippets are available.

easy-rules saves you 3160 person hours of effort in developing the same functionality from scratch.

It has 6799 lines of code, 735 functions and 146 files.

It has low code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed easy-rules and discovered the below as its top functions. This is intended to give you an instant insight into easy-rules implemented functionality, and help decide if they suit your requirements.

Command entry point
Create a composite rule
Main function
Create a composite rule
Main method
Create a composite rule
The main method
Create a composite rule
Entry point to the simulation
Create a composite rule
Entry point
Checks if the given method is a Fact
Executes the compiled script
Returns a string representation of the facts
Compares this rule with the specified priority and description
Creates a new rules from the given reader
Evaluates the given facts for this rule group
Evaluates the supplied facts
Creates a rule from the given reader descriptor
Create a set of SpELRule from a Reader
Compares two action order
Compares this fact with the specified fact name
This method returns a hashCode of the name
Creates a simple rule
Create a set of rules from a given rule descriptor
Test program
Read rule definitions from the specified reader
Evaluates the expression
Invokes the method on the proxy
Processes a set of rules

Get all kandi verified functions for this library.

easy-rules Key Features

No Key Features are available at this moment for easy-rules.

easy-rules Examples and Code Snippets

No Code Snippets are available at this moment for easy-rules.

Community Discussions

Trending Discussions on easy-rules

How to use variables in easy rules?

QUESTION

How to use variables in easy rules?

Asked 2020-May-17 at 16:20

I am using JSON descriptor to load rules using easy-rules and I want to use variables in easy rules actions. For example I have a set of rules where I define rule id, name, description as given below

...

ANSWER

Answered 2020-May-15 at 20:13

Summarising, no and yes!

To get to how, you have to understand that as long as a variable is present as a Fact or somehow it is present in MVEL context, it can be resolved.

Here's detailed answers-

Use rule name, description inside actions?

No. You can't use Rule's name and description inside an Action. To use external variables inside rules, you'll have to add them as facts. If you want that ability, use drools which is much more feature rich and heavy framework.

Use a variable under actions?

This you can do, however not the way you have. def has a special meaning inside MVEL. So to use variables, you can do either of these things-

Define variable as separate action item:

Source https://stackoverflow.com/questions/61626840

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install easy-rules

You can download it from GitHub, Maven.
You can use easy-rules like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the easy-rules component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

Support

You are welcome to contribute to the project with pull requests on GitHub. Please note that Easy Rules is in maintenance mode, which means only pull requests for bug fixes will be considered. If you believe you found a bug or have any question, please use the issue tracker.

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