Jess The Rule Engine for the Java Platform - Version 7.1p2

Jess is a rule engine for the Java platform. To use it, you specify logic in the form ofrules using one of two formats: the Jess rule language (prefered) or r XML . You alsoprovide some of your own data for the rules to operate on. When you run the ruleengine, your rules are carried out. Rules can create new data, or they can do anythingthat the Java programming language can do.
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Jess The Rule Engine for the Java Platform - Version 7.1p2 ®Jess TheRuleEnginefortheJava™Platform Version7.1p2 November5,2008© ErnestFriedmanHill SandiaNationalLaboratories TableofContents Introduction ................................................................................................................................................................. 1 1.GettingStarted ........................................................................................................................................................ 3 1.1. Requirements....................................................................................................................3 1.2. Getting ready.....................................................................................................................42.TheJessDEDevelopersEnvironment .................................................................................................................... 7 2.1. Installing the JessDE.........................................................................................................7 2.2. Using the JessDE..............................................................................................................83.JessLanguageBasics ........................................................................................................................................... 11 3.1. Symbols...........................................................................................................................11 3.2. Numbers..........................................................................................................................11 3.3. Strings.............................................................................................................................11 3.4. Lists.................................................................................................................................12 3.5. Comments.......................................................................................................................12 3.6. Calling functions.............................................................................................................12 3.7. Variables.........................................................................................................................13 3.8. Control flow....................................................................................................................154.DefiningFunctionsinJess ...