Get Start

As start, lets check the normal steps to use Witmate with a very simple logic set.

1. Define logic by Simple Logic Language

	LogicSet CustomerLevel       Def text sex       Def int age            If sex="female" and 16<age<25 Then Return "young_girl"       If sex="male" and age>50  Then Return "old_man"
	and save to a file named logic.sl.

2. Load logic set into Witmate and run it through WitME, a JSR-94 like interface executable on J2ME.

FileReader fr=new FileReader("logic.sl");   //parse the logic set   RuleServiceProvider serviceProvider = (RuleServiceProvider)Class.forName("witmate.core.kernel.ServiceProvider").newInstance();   RuleExecutionSet res = serviceProvider.getRuleAdministrator().getLocalRuleExecutionSetProvider( null ).createRuleExecutionSet( fr, new Hashtable());   //Register the RuleExecutionSet    serviceProvider.getRuleAdministrator().registerRuleExecutionSet("A Rule URI", res, null );   //Get a RuleRuntime and invoke the rule engine.   RuleRuntime ruleRuntime = serviceProvider.getRuleRuntime();   //Generate inputs   ConstantVariable V1=new ConstantVariable();   V1.name="sex";  V1.type=ConstantValues.DT_STR;  V1.value="female";     ConstantVariable V2=new ConstantVariable();   V2.name="age";  V2.type=ConstantValues.DT_INT;  V2.value=new Integer(20);   Vector in_vars=new Vector();   in_vars.addElement(V1);  in_vars.addElement(V2);   //Create a StatelessRuleSession   StatelessRuleSession statelessRuleSession = (StatelessRuleSession) ruleRuntime.createRuleSession(res.getName(), new Hashtable(),  RuleRuntime.STATELESS_SESSION_TYPE);   //Run logic and get result.   Vector results = statelessRuleSession.executeRules(in_vars);   //Release the session.   statelessRuleSession.release();

3. Get the result