JBoss Drools Business Rules Table of Contents

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Table of Contents

Preface
Chapter 1: Drooling over JBoss Rules
Chapter 2: Getting the software
Chapter 3: Meet the Guvnor
Chapter 4: Guided Rules with the Guvnor
Chapter 5: From Guvnor to JBoss IDE
Chapter 6: More rules in the JBoss IDE
Chapter 7: Testing your Rules
Chapter 8: Data and Rules in Excel
Chapter 9: Domain Specific Language (DSL) and RuleFlow
Chapter 10: Deploying Rules in Real Life
Chapter 11: Looking under the Cover
Chapter 12: Advanced Drools Features
Index

  • Chapter 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
  • Chapter 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
  • Chapter 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
        • Packages
        • Deployment
        • QA—Quality Analysis
        • Hello World example
    • Summary
  • Chapter 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
  • Chapter 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?
      • Try it yourself
    • Summary
  • Chapter 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
        • Righthand side—Then
      • Guided editor in the JBoss IDE
    • Summary
  • Chapter 7: Testing your Rules
    • Testing when building rules
      • Making testing interesting
      • Testing using Guvnor
      • Testing using FIT
        • Getting FIT
        • The FIT requirements document
        • 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
  • Chapter 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
  • Chapter 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
  • Chapter 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
  • Chapter 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
  • Chapter 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

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