Kjars

A kjar is a file format used in the Drools and jBPM (Java Business Process Management) platforms, which are part of the Red Hat Decision Manager suite. The term "kjar" is an acronym for "knowledge jar," reflecting its role in encapsulating and managing business rules, decision tables, and other knowledge assets. Kjars are essentially JAR (Java ARchive) files that contain these assets, along with metadata and configuration files, making them portable and easy to deploy across different environments.

The primary purpose of a kjar is to provide a standardized way to package and distribute business logic. This includes rules, processes, and other decision-making components that drive business applications. By using kjars, organizations can ensure consistency and reusability of their business logic across various projects and systems.

Kjars can be created and managed using the Drools Workbench, a web-based tool that allows users to define, test, and deploy business rules and processes. Once created, kjars can be deployed to a Drools or jBPM server, where they are executed as part of the application's workflow.

In summary, kjars are a crucial component in the Drools and jBPM platforms, enabling the efficient management and deployment of business rules and decision-making logic. Their use helps streamline the development process, promote consistency, and facilitate the reuse of business logic across different applications and environments.