Information Technology

Drools JBoss Rules 5.X Developer's Guide

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Drools is a Business Logic integration Platform (BliP). It is written in Java. It is an open source project that is backed by JBoss and Red Hat, Inc. It is licensed under the Apache License, Version 2.0 (http://www.apache.org/licenses/ LICENSE-2.0.html). This book will focus on Version 5.5 of this platform that was released in November 2012. Work on Drools (the rule engine) began in 2001. From its beginning Drools underwent many changes. Drools 1.0 started with a brute force linear search. It was then rewritten in Version 2.0, which was based on the Rete algorithm. The Rete algorithm boosted Drools' performance. Rules were written mainly in XML. The next Version 3.0 introduced a new .drl format. This is a domain-specific language specially crafted for writing rules. It proved to be a great success and it became the main format for writing rules. Version 4.0 of the rule engine had some major performance improvements together with first release of Business Rules Management System (BRMS). This formed the base for the next big release 5.0, where Drools became a BliP. The platform consists of four main modules:

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Publisher

: ., 2013

Collation

1-338

Language

English

ISBN/ISSN

978-1-78216-126-4

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NONE

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Drools JBoss Rules 5.X Developer's Guide

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