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JBoss: Developer's Guide

You're reading from   JBoss: Developer's Guide A complete guide to the JBoss ecosystem

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Product type Paperback
Published in Aug 2017
Publisher Packt
ISBN-13 9781788296199
Length 328 pages
Edition 1st Edition
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Author (1):
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Elvadas Nono Woguia Elvadas Nono Woguia
Author Profile Icon Elvadas Nono Woguia
Elvadas Nono Woguia
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Toc

Table of Contents (10) Chapters Close

Preface 1. Introduction to the JBoss Ecosystem FREE CHAPTER 2. Developing and Hosting Scalable Web Applications 3. Custom Web Deployment using Undertow and Swarm 4. Storing and Accessing Distributed Data 5. Exposing Data as a Service 6. Integrating Applications with JBoss Fuse 7. Delivers Information Safely and Connects IoT 8. Making Better Decisions in Your Applications 9. Developing Workflows

Authoring business rules with JBoss BRMS

In a declarative programming style, the raw material comprises mainly business rules and facts. A business rule is a statement derived from propositional and first-order logic (for example, if <conditions>, then <actions>) to express system knowledge. The inference engine applies pattern matching algorithms on rules and data facts present in the working memory to infer conclusions that lead to actions. Facts are mainly expressed as plain Java object models:

Rules reside in a space called the production memory, whereas facts are kept in the working memory. On applying pattern-matching algorithms, new facts can be generated, updated or removed from the working memory. Two rules are said to be in conflict when they both are true for the same fact assertion--an Agenda is important to manage execution orders in case of conflicts...

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