Drools
Rule engine for evaluating declared business rules against facts.
Official site ↗At a glance
- Organization
- Apache KIE (incubating)
- Type
- rule engine
- Access
- open source
- Deployment
- application runtime
- Lifecycle
- active
When to consider it
- When a Java application needs to execute explicit rule sets
Considerations
- The Apache KIE project is incubating; select a supported version and review rule conflicts.
Connections
- In areaComposition & Runtime
- Supports functionApply explicit rules
- Uses approachRule evaluation
Sources
Last reviewed 2026-09-30