Hi<br>   EveryBody,I want to write code like this in drools4,but I got a problem that no class defined as FactType, how to refactor it ?<br>RuleAgent agent = RuleAgent.newRuleAgent(&quot;/rules.properties&quot;);<br>        RuleBase rb = agent.getRuleBase();<br>
        //constructor a model ,<br>        FactType appType = rb.getFactType(&quot;test.MerInfo&quot;);<br>    <br>        Object merinfo = appType.newInstance(); <br>        appType.set(merinfo, &quot;resp_code&quot;, &quot;00&quot;);<br>
        appType.set(merinfo, &quot;avg_amt&quot;, 5000.0);<br>       <br>         <br>        StatelessSession ss =  rb.newStatelessSession();<br><br><br>  ss.execute(merinfo);<br><br>