Drools JBoss Rules 5.0 Developer's Guide
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- Discover the power of Drools as a platform for developing business rules
- Build a custom engine to provide real-time capability and reduce the complexity in implementing rules
- Explore Drools modules such as Drools Expert, Drools Fusion, and Drools Flow, which adds event processing capabilities to the platform
- Execute intelligent business logic with ease using JBoss/Drools, a stronger business-rules solution
- Covers examples of a fraud detection system utilizing Drools CEP (Complex Event Processing) capabilities
Book Details
Language : EnglishPaperback : 320 pages [ 235mm x 191mm ]
Release Date : July 2009
ISBN : 1847195644
ISBN 13 : 978-1-847195-64-7
Author(s) : Michal Bali
Topics and Technologies : All Books, Java, JBoss, Open Source
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Table of Contents
Preface
Chapter 1: Introduction
Chapter 2: Basic Rules
Chapter 3: Validation
Chapter 4: Data Transformation
Chapter 5: Human-readable Rules
Chapter 6: Stateful Session
Chapter 7: Complex Event Processing
Chapter 8: Drools Flow
Chapter 9: Sample Application
Chapter 10: Testing
Chapter 11: Integration
Chapter 12: Performance
Appendix A: Development Environment Setup
Appendix B: Custom Operator
Appendix C: Dependencies of Sample Application
Index
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Michal Bali
Sample chapters
You can view our sample chapters and prefaces of this title on PacktLib or download sample chapters in PDF format.
Find your book in our support section to find errata and to download code samples.
- Write more efficient business rules, and work with the Rete algorithm, node indexing, node sharing, and parallelization
- Create a WS-HumanTask-compliant WorkItem in a process (workflow)
- Implement concurrency control in cross-cutting functionalities to manage code easily
- Write human-readable rules, and Domain Specific Language for your rules to easily understand and verify them
- Generate a stateful service by using a stateful knowledge session that maintains state between invocations and teaches you how to transactionally persist this service
- Develop dynamic remote knowledge-base loading to change rules in your application without even stopping it
- Prepare decision tables for calculating account interest rates
- Integrate Drools within your Java business application, and integrate it with the Spring framework
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Business rules can help your business by providing a level of agility and flexibility. As a developer, you will be largely responsible for implementing these business rules effectively, but implementing them systematically can often be difficult due to their complexity. Drools, or JBoss Rules, makes the process of implementing these rules quicker and handles the complexity, making your life a lot easier!
This book guides you through all of the features of Drools, such as dynamic rules, the event model, and Rete implementation with high performance indexing. It will help you to set up the JBoss Rules platform and start creating your own business. It's easy to start developing with Drools if you follow its real-world examples that are intended to make your life easier.
Starting with an introduction to the basic syntax that is essential for writing rules, the book will guide you through validation and human-readable rules that define, maintain, and support your business agility. As a developer, you will be expected to represent policies, procedures and. constraints regarding how an enterprise conducts its business; this book makes it easier by showing you it can be done.
A real-life example of a banking domain allows you to see how the internal workings of the rules engine operate. A loan approval process example shows the use of the Drools Flow module. Parts of a banking fraud detection system are implemented with Drools Fusion module, which is the Complex Event Processing part of Drools. This in turn, will help developers to work on preventing fraudulent users from accessing systems in an illegal way.
Finally, more technical details are shown on the inner workings of Drools, the implementation of the ReteOO algorithm, indexing, node sharing, and partitioning.
A developer's guide to the powerful Java business rules platform.
This is a problem-solution guide that starts with an introduction to a problem and continues with a discussion of the possible solution. The book covers best practices when working with Drools. The examples and their solutions are accompanied by plenty of code listings and figures providing a better view of the problem.
The book is for Java developers who want to create rules-based business logic using the Drools platform. Basic knowledge of Java is essential.
If this isn't the right book for you, take a look at some of our other offerings below.
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- An easy-to-understand JBoss Drools business rules tutorial for non-programmers
- Automate your business processes such as order processing, supply management, staff activity, and more
- Prototype, test, and implement workflows by themselves using business rules that are simple statements written in an English-like language
- Discover advanced features of Drools to write clear business rules that execute quickly
- For confident users of Excel or other business software, this book is everything you need to learn JBoss Drools business rules and successfully automate your business.
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Develop business process models for implementation in a business process management system.
- Map your business processes in an efficient, standards-friendly way
- Use the jBPM toolset to work with business process maps, create a customizable user interface for users to interact with the process, collect process execution data, and integrate with existing systems.
- Use the SeeWhy business intelligence toolset as a Business Activity Monitoring solution, to analyze process execution data, provide real-time alerts regarding the operation of the process, and for ongoing process improvement
- Set up business rules, assign tasks, work with process variables, automate activities and decisions.
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- Thoroughly understand how the jBPM framework works
- Build custom Java Enterprise solutions using the jBPM framework
- No experience with jBPM required
- Helpful guidance on converting a business analyst's spec into complete, working software
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- Develop complete JSF, Struts, Seam, Hibernate, jBPM, ESB, web service, and portlet applications using JBoss Tools
- Tools covered in separate chapters so you can dive into the one you want to learn
- Manage JBoss Application Server through JBoss AS Tools
- Explore Hibernate Tools including reverse engineering and code generation techniques
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- A complete guide for JBoss developers covering everything from basic installation to creating, debugging, and securing Java EE applications on this popular, award-winning JBoss application server
- Master the most important areas of Java Enterprise programming including EJB 3.0, web services, the security framework, and more
- Starts with the basics of JBoss AS and moves on to cover important advanced topics with the help of easy-to-understand practical examples
- Written in a very simple and readable style, this book includes essential tips and tricks that will help you master JBoss AS development
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- Manage your business documents with version control, library services, content organization, and advanced search
- Create collaborative web sites using document libraries, wikis, blogs, forums, calendars, discussions, and social tagging
- Integrate with external applications such as Liferay Portal, Adobe Flex, iPhone, iGoogle, and Facebook
- Automate your business process with the advanced workflow concepts of Alfresco 3
- Fully revised and updated for version 3.0, covering Alfresco Surf and more
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- Follow a sample application which will help you to get started quickly with Apache Maven
- Learn how to use Apache Archiva - an extensible repository manager - with Maven to take care of your build artifact repository
- Leverage the power of Continuum - Apache's continuous integration and build server - to improve the quality and maintain the consistency of your build
- Guidance on how to use Maven in a team environment to maximise its potential
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- Basics of OSWorkflow
- Integrating business rules with Drools
- Task scheduling with Quartz
