JBoss Drools Business Rules -- Table of Contents -- JBoss Drools Business Rules -- Credits -- Foreword -- About the author -- About the reviewer -- Preface -- What this book covers -- What you need for this book -- Who this is book for -- Conventions -- Reader Feedback -- Customer Support -- Errata -- Piracy -- Questions -- 1. Drooling over JBoss Rules -- Who are you? What's your problem? -- Does this sound like where you work? -- Life or death business rules -- What would you do? -- Business rules in your organization -- Exercise - rules in your organization -- The chocolate factory -- Build your own rule engine in Excel -- Why can't the tech guys write the rules for me? -- Why existing solutions don't cut it -- Rule engines to the rescue -- Other rules (Microsoft Outlook) -- Meet JBoss Rules -- A bit more on open source -- The JBoss Rules community -- Where to get help -- How to ask for help -- The bigger picture -- Members of your team -- How do I write the rules -- Introducing the BRMS (Guvnor) -- Parts of the solution -- Rules editor -- Rules compiler -- Runtime -- Fact model -- Java -- Rule repository -- Rest of the system -- When not to use a rule engine -- Summary -- 2. Getting the software -- What are we going to install? -- Who should install it? -- Installing Java -- Installing JBoss -- Actual install -- Installing the BRMS/Guvnor -- Installing Eclipse -- Installing the Drools plug-in -- Finding the plug-in -- Installing Maven -- Installing sample projects for this book -- Setting up the sample project in Eclipse -- Getting Maven and Eclipse to work together -- Troubleshooting -- Summary -- 3. Meet the Guvnor -- Taking a tour with the Guvnor -- Getting started -- General navigation -- The search screen -- Administration -- Loading the samples -- What did we just do? -- More on the admin page -- Rules -- Process -- The model.

Guided rules -- Technical rules -- Creating a new rule -- Packages -- Deployment -- QA-Quality Analysis -- Automating testing in Guvnor -- The analysis page -- Hello World example -- Writing the rule -- Firing the rule -- What just happened? -- Summary -- 4. Guided Rules with the Guvnor -- Passing information in and out -- Building the fact model -- Importing the fact model into Guvnor -- Guided rules using the fact model -- The step-by-step answer -- Running this scenario -- What just happened? -- Summary -- 5. From Guvnor to JBoss IDE -- A more powerful rule -- Have a go -- Updating the rule-step by step -- The When part -- Looking behind the curtain-a text-based rule -- A small problem... -- Rule attributes -- More on the guided editor -- Possible comparisons -- Condition types -- Add more options -- Multiple field constraints -- The Then part -- More rule options and attributes -- Text editing -- Introduction to the JBoss IDE -- Hello World in the JBoss IDE editor -- What just happened? -- The business explanation -- The technical explanation -- Try it yourself -- Summary -- 6. More rules in the JBoss IDE -- Rule syntax -- Patterns for the When part -- Patterns for the Then part -- Shipping chocolate bars -- The problem (and remind me why I need business rules) -- Why rules scale better-a reminder -- Getting and building the sample -- Rules -- ChocolateShipment.java -- CustomerOrder.java -- OompaLoompaDate -- The RuleRunner file -- MultipleRulesExample -- Running the sample -- Console -- More powerful rule syntax -- Lefthand side -- not -- Contains and memberOf -- matches and Soundslike -- in -- exists -- forall -- collect/accumulate -- eval -- from -- Righthand side-Then -- Guided editor in the JBoss IDE -- Summary -- 7. Testing your Rules -- Testing when building rules -- Making testing interesting -- Testing using Guvnor -- Testing using FIT.

Getting FIT -- The FIT requirements document -- Logo and the first paragraph -- First step-setup -- Second step-values in -- Third step-click on the Go button -- Fourth step-check the results -- Clear (an optional step) -- Print a summary (an optional step) -- Footer -- Running FIT on our sample -- What just happened? -- What can go wrong? -- The FIT plumbing -- What is unit testing? -- Why unit test? -- Unit testing the Chocolate Shipments sample -- What just happened? -- What if it goes wrong? -- Failures and errors -- Testing an entire package -- Summary -- 8. Data and Rules in Excel -- Reading data from Excel -- Business rules for this sample -- Getting and running the sample -- Input -- Rules -- Running the sample -- What's going on? -- Under the covers -- More on Cells and Ranges -- Sophisticated, but repetitive rules -- Some Excel magic -- Decision tables behind the scenes -- Header information -- RuleTable-Evaluate the buy trades -- RuleTable-Execute the buy trades -- Other rule tables -- Mixing rules and decision tables -- Running the Chocolate Trading example -- What just happened? -- Have a go -- Summary -- 9. Domain Specific Language (DSL) and RuleFlow -- What is a Domain Specific Language (DSL)? -- Expanders -- The DSL format -- Other DSL editing options -- Writing DSLs -- Meet the sample -- Running the DSL example -- Guvnor and DSL-based rules -- Ruleflow -- Ruleflow is not workflow -- That Homeloan example again -- Linking rules to Ruleflow -- A quick introduction to stateful applications -- Stateful rules and Ruleflow -- Summary -- 10. Deploying Rules in Real Life -- One size fits all architecture -- What needs to be deployed? -- Rules as code or data? -- Deployment process -- What's a repository? -- Deploying rules -- Push or pull? -- Loading our rules -- Looking inside RuleRunner.java -- Helper methods -- Public methods -- Stateless.

Stateful -- Alternative method-RuleAgent -- Web deployment -- Maven for packaging -- Summary -- 11. Looking under the Cover -- Rule engine concepts -- Facts or objects -- Working memory -- Pattern matching, Agenda, and Activations -- Conflict resolution -- A more dynamic Agenda -- Truth maintenance -- Back to the future (with chocolate shipping) -- Logging working memory -- Looking at the working memory log -- Drools Audit Log Viewer -- Rete algorithm -- Rete in action -- Debugging rules -- Debugging rules in the Eclipse IDE -- Rules debug perspective -- Other Drools views while debugging -- When to log, when to test, and when to debug -- Summary -- 12. Advanced Drools Features -- Pigeons, Drools, and Complex Event Processing -- Implementing Complex Event Processing using Fusion -- More powerful events -- Inline beans -- Loading data when your beans don't exist-Smooks -- From pigeons to biscuits-Drools Solver for your local supermarket -- How Drools Solver works -- Implementing a Solver -- More information on Solver -- Forward and backward chaining -- Changing the conflict resolution methodology -- Standard rule engine API-JSR 94 -- Other rule engines -- New API -- Drools flow-a full workflow engine -- New features in Guvnor -- Does this still sound like where you work? -- Summary -- Index.