Drools for Developers



What you’ll learn

  • Stateful VS Stateless sessions

  • How to use Salience to prioritize rules

  • The use of Agenda groups in Drools

  • How to use Decision Tables and Cross products in Drools


  • A desire to learn and Crush It!

  • A working Computer with either Windows/MacOS or Linux

  • All technologies we will use will be free/have free trial versions

  • Some Basic knowledge of unix/linux commands can be helpful, but not required

Build a strong foundation in Drools with this practical course suited to both beginners and experienced professionals.

A rule engine is essential becuase unlike regular code, with rules, the extent to which our rule based logic can be abstracted matters. Drools is the top ranked rule engine in the market. Drools is one of the leading implementations of rule-engines and uses the Rete Algorithm for pattern matching. Rule Engines are being used more and more for their role in handling complex business logic and increased efficiency. Use cases of rule engines today range from transferring maintenance to business owners [non technical people] to centralizing business logic with improvements in security and efficiency. As such more and more jobs are going to developers who have the skill of using rule engines like Drools.

This course will guide you through all the basics of Drools and get you ready to tackle any business logic dependent project that comes your way.

We will cover the following pillars of Drools:

1)Drools Concepts: Start off by learning the syntax of drools. Understand the basic structure of a rule. Why do we use Drools? What is a stateless or state-full session?

2)Drools Setup: Understand how to create Drools sessions and setup drools rules files. Setup a Java app and a Java Spring app which uses Drools.

3)Drools skills: Here we will pick up the advanced skills of Drools. Learn how to master Drools techniques like prioritization using Salience and Agenda groups. Make use of activation groups. Practically implement state-full and stateless sessions. Help business users by working on cross products and decision tables. See how to implement them in real life situations. Write re-usable code using Inference and InsertLogical commands.

Everything is well documented and separated, so you can find what you need. Assignments and Quizzes will make sure you stay on track and test your knowledge. The course will have a combination of theory and practical examples.

Who this course is for:

  • Developers/Tech Leads looking to implementing Drools Rule Engine in their applications
  • Developers who want to implement complex data driven decision tables using Drools
  • Anybody with a desire to earn more by learning more!

Creating better Software Developers

Graduated from the University of Pennsylvania with a degree in Computer Science. Has been working in the Industry for a few years now.  He likes to teach as a hobby. Just have a passion for teaching and enjoy doing this on the side. He tries to be concise and to the point, while making sure students follow all the best practices.

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Author: Ho Quang Dai

I am Ho Quang Dai, from Vietnam – A country that loves peace. I share completely free courses from major academic websites around the world. Hope to bring free knowledge to everyone who can’t afford to buy

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