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jBPM6 Developer Guide - Third Edition
book

jBPM6 Developer Guide - Third Edition

by Mauricio Salatino
August 2014
Intermediate to advanced content levelIntermediate to advanced
310 pages
7h 59m
English
Packt Publishing
Content preview from jBPM6 Developer Guide - Third Edition

The Drools rule engine

Drools is a rule engine framework that provides the possibility of creating rules in a script language called Drools Rule Language (DRL) and running the rules inside an in-memory inference engine that provides great performance. Rule languages have a declarative nature, which means that the next action to be taken is determined by the input data that triggers specific conditions in the rules, unlike the imperative nature of languages such as Java, where the next action to be taken is determined by the sequence of actions written in the code.

Rules written in DRL follow a very specific syntax for constraints and a configurable syntax for the actions of the rule (which we will keep as plain Java for simplicity). The constraint ...

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Publisher Resources

ISBN: 9781783286614Supplemental Content