Book Image

Mastering JBoss Drools 6

By : Mariano De Maio, Mauricio Salatino, Esteban Aliverti
Book Image

Mastering JBoss Drools 6

By: Mariano De Maio, Mauricio Salatino, Esteban Aliverti

Overview of this book

Mastering JBoss Drools 6 will provide you with the knowledge to develop applications involving complex scenarios. You will learn how to use KIE modules to create and execute Business Rules, and how the PHREAK algorithm internally works to drive the Rule Engine decisions. This book will also cover the relationship between Drools and jBPM, which allows you to enrich your applications by using Business Processes. You will be briefly introduced to the concept of complex event processing (Drools CEP) where you will learn how to aggregate and correlate your data based on temporal conditions. You will also learn how to define rules using domain-specific languages, such as spreadsheets, database entries, PMML, and more. Towards the end, this book will take you through the integration of Drools with the Spring and Camel frameworks for more complex applications.
Table of Contents (18 chapters)
Mastering JBoss Drools 6
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Preface
Index

CDI integration


One of the first integration frameworks we discussed in this book was the Contexts and Dependency Injection (CDI) standard. It lets us define how we should bind beans together depending on @Inject annotations, to avoid having to write code to init and bind all our beans together. If we are already using CDI in our application, we have already seen we can use injected Kie Sessions, Kie Containers, and Kie Bases in previous chapter. There is no other required change in our application, other than a CDI implementation dependency.

In our chapter-11/chapter-11-ci example, we use Weld (http://weld.cdi-spec.org/) as an implementation by adding this dependency into our POM file:

<dependency><groupId>org.jboss.weld.se</groupId>
    <artifactId>weld-se-core</artifactId>
    <version>1.1.28.Final</version>
</dependency>

Also, we need to define an empty beans.xml file inside our project, in the src/main/resources/META-INF folder. Doing these...