[KieLive#17] Understanding DRL (Drools Rule Language)

0:00 Introduction
8:23 Drools Community
12:44 Declarative vs Imperative programming
17:48 What is a Business Rule?
31:00 Demo: creating the first Drools project
40:44 Drools Sessions explained
45:36 Control Facts
50:45 Rules evaluation debugging
57:57 Questions

[@manikantag]

Start video from 10:00 mark and save your time :)

[@shomer2009]

Thanks for this amazing live

[@SoftwareDevelopmentStudio]

thankyou team

28:44 I tried the exact same rule 30 times and compared the execution time it didn't optimise, in fact the more times I repeat the same rule the more it takes to execute linearly

[@joshakh]

I am having hard time using scanner utiltity to update drl files on the fly .. I am using kie-ci jar, yet not able to do hot deploy

[@rajnishbharti1112]

I have one doubt.. is it possible that if we update drl file so without restart server will it reflect. I tried but not working. Spring dev tools dependency is not feasible solution.

[@levenchen9692]

cool

[@theworldinthevlog9970]

Hey Luca, should the structure of the facts always be static?

[@LucaMolteni84]

Hey there, what do you mean static? Facts are plain Java classes

[@MrVipulLal]

Lots of hot air in this vide. Talk, talk

[@LucaMolteni84]

Hey Vipul, thanks for your comment - let us know how we can help

[@venkatarameshnidadavolu6329]

I have some bunch of sql queries which are to be executed based on the inputs provided through UI. Is it possible to dploy all these sql queries in the form of rules and gets executed.?

[@LucaMolteni84]

You cannot convert directly SQL to DRL but you can execute your queries against your database and then process the data based on your rules by putting the results inside the working memory. Hope this helps

[@ajaychowdarykandula2230]

@@LucaMolteni84 I believe he can make facts based on his entities, insert them into working memory that can be stored into first level cache for faster execution