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JBoss Drools is an open source business rules engine that provides agility and flexibility to your business logic. Drools 5 has evolved to provide a unified and integrated platform for business rules, business processes, event processing and automated planning. With this book in hand you will be able to use any of these modules and their specific features quickly and with ease.
Drools Developer Cookbook will help you to apply the latest community features to your projects. You will learn about all the Drools modules - Guvnor, Fusion, Expert, and Planner - along with jBPM5 and integration capabilities. The straightforward recipes will help you to implement even more rules in your projects and take you to a new level with the Drools platform.
This book teaches you how to create a more robust business rules implementation, starting with tips on how to write business rules manually, or by using the newest Guvnor rule editors. You will learn how your rules can be integrated with another framework to create a full solution and discover how to use complex features such as event processing. The recipes cover all of the Drools modules and will help you to solve problems with planning, remote execution, and much more.
Approach
Part of Packt's cookbook series, this book is packed with easy to follow recipes containing step-by-step instructions. The book is designed in such a way that you can read it chapter by chapter, or refer to the tasks in no particular order.
Who this book is for
This book is for Drools developers who want to improve their current working methods and discover new features to apply to their projects. Readers are expected to be familiar with the basics of the Drools platform as well as Java.
Sang_v
Posted Mon Feb 13 00:00:00 EST 2012
Drools, in my opinion, is not a hard technology to get into, especially if you have done some java development and have a decent idea about decisioning systems. How the RETE algorithm works conceptually is usually a good enough starting point to design the rules (and accompanying code) effectively to get the job done.
However, Drools has various different sub-projects that are useful (e.g. Drools Fusion for Complex event processing, Drools Planner, Guvnor, jBPM5 etc) and this book does a very good job of introducing these projects and provides enough examples (and recipes) to get someone started. For e.g., I did not know that I could declare facts in the rules file itself (as opposed to a POJO or XML). I also did not know about the rules verifier which does an analysis of how the rules are written and points out redundancies and conflicts. I found all the recipes to be useful (even though I do not plan on using them all) because they shed some light on Drools the technology and on best practices in using it.
Overall, I highly recommend this book for anyone planning to use Drools beyond a "Hello World" example. The broad coverage of topics and detailed (with working code) recipes definitely makes this book a good buy.
Overview
JBoss Drools is an open source business rules engine that provides agility and flexibility to your business logic. Drools 5 has evolved to provide a unified and integrated platform for business rules, business processes, event processing and automated planning. With this book in hand you will be able to use any of these modules and their specific features quickly and with ease.
Drools Developer Cookbook will help you to apply the ...