Speadsheet decision tables, Complex Event processing, rule templates, slidingwWindows, all with executable code examples

What you'll learn

How Drools works internally and what to keep in mind for writing faster performing rules

Create spreadsheet decision tables and spreadsheet templates

What is Complex Event Processing and how Drools handles it

How to use rule templates (DRT or Freemarker) and run dynamically defined DRL

Understand different Drools running modes (active/passive, cloud/stream, sequential)

Requirements

Beginner experience with Java

Beginner experience with Drools is recommended but not required

Description

In this course we learn the following topics

How Drools internal algorithm Phreak works

Using spreadsheet decision tables to create Drools rules

Using templates for creating rules and feeding data into them from spreadsheets and other tabular data sources

Complex event processing in Drools

difference between fact and event

declaring facts and events in Java and inside DRL code

different rule execution modes (active/passive, cloud/stream, sequential)

time and length based sliding windows

entry-points

global variables

timers

For all the examples I have created runnable example code - so you can follow the same steps shown in the video and you are encouraged to try to make changes to the examples and run yourself

I use Apache OpenOffice for editing XSL files so you don't need to use a paid program (like Excel) but you can if you want

This is a follow-up course for my previous corse Master Drools - Drools for beginners. I got a lot of feedback for that course (thank you everyone who took time to leave it) and this course is based on that feedback.

In this course if I meet some language construct (forall, collect, not, from) that has been covered in the previous course - then I briefly try to explain it, but it is highly recommended for you to first go through the begninner course because it covers these topics in more depth and moves step-by-step from easier topics to more difficult ones.

Who this course is for

Anyone writing rules in Drools DSL and wants to become better at it

Anyone who is considering using Drools for writing rules or processing stream of events