Simple Rule Engine

Simple Rule Engine: An Open-Source Java Rule Engine

A lightweight rule engine for Java with no external dependencies, ideal for evaluating business rules and making decisions within applications.

What is Simple Rule Engine?

Simple Rule Engine is an open-source Java library that provides a lightweight rule engine to execute business rules in applications. It allows developers to define conditions and actions in a readable domain-specific language, enabling non-programmers to manage application logic without needing to write code.

Key features include:

• Lightweight API with no external dependencies
• Rules defined in easy-to-read DSL format
• Rules can be loaded from XML files or Strings
• Supports common rule types like if/else if/else
• Out-of-the-box rules for null checks, collection checking
• Fluent API for chaining multiple rules
• Evaluates rules to true or false
• Executes rule actions based on evaluation
• APIs for adding custom rules and actions
• No code changes needed to modify rules

Simple Rule Engine makes it easy to externalize business logic from application code. It's lightweight, fast and integrates seamlessly into any Java project. The easy-to-use DSL and API lowers the learning curve for non-programmers to manage rules without coding.

Simple Rule Engine Features

Official Links