Package org.drools.compiler

Examples of org.drools.compiler.Father

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        KnowledgeBase kbase = loadKnowledgeBaseFromString(str);
        KieSession ksession = createKnowledgeSession(kbase);

        ksession.setGlobal("totalHolder", new TotalHolder());
        Father abraham = new Father("abraham", null, 100);
        Father homer = new Father("homer", null, 20);
        Father bart = new Father("bart", null, 3);

        org.kie.api.runtime.rule.FactHandle abrahamHandle = ksession.insert(abraham);
        org.kie.api.runtime.rule.FactHandle bartHandle = ksession.insert(bart);
        ksession.fireAllRules();
        assertEquals(0, ((TotalHolder) ksession.getGlobal("totalHolder")).getTotal());

        bart.setFather(abraham);
        ksession.update(bartHandle, bart);
        ksession.fireAllRules();
        assertEquals(100, ((TotalHolder) ksession.getGlobal("totalHolder")).getTotal());

        bart.setFather(null);
        ksession.update(bartHandle, bart);
        ksession.fireAllRules();
        assertEquals(0, ((TotalHolder) ksession.getGlobal("totalHolder")).getTotal());

        bart.setFather(abraham);
        ksession.update(bartHandle, bart);
        ksession.fireAllRules();
        assertEquals(100, ((TotalHolder) ksession.getGlobal("totalHolder")).getTotal());

        org.kie.api.runtime.rule.FactHandle homerHandle = ksession.insert(homer);
        homer.setFather(abraham);
        ksession.update(homerHandle, homer);
        bart.setFather(homer);
        ksession.update(bartHandle, bart);
        ksession.fireAllRules();
        assertEquals(120, ((TotalHolder) ksession.getGlobal("totalHolder")).getTotal());
    }   
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                "end";

        KnowledgeBase kbase = loadKnowledgeBaseFromString( str );
        StatefulKnowledgeSession kSession = createKnowledgeSession(kbase);

        Father abraham = new Father("abraham");
        Father bart = new Father("bart");
        Collection<? extends Object> youngestFathers;

        bart.setFather(abraham);
        FactHandle abrahamHandle = kSession.insert(abraham);
        FactHandle bartHandle = kSession.insert(bart);
        kSession.fireAllRules();
       
        youngestFathers = kSession.getObjects( new ClassObjectFilter(YoungestFather.class) );
        assertEquals( 1, youngestFathers.size() );
        assertEquals( bart, ((YoungestFather) youngestFathers.iterator().next()).getMan() );

        Father homer = new Father("homer");
        FactHandle homerHandle = kSession.insert(homer);

        homer.setFather(abraham);
        // If we do kSession.update(homerHandle, homer) here instead of after bart.setFather(homer) it works
        // But in some use cases we cannot do this because fact fields are actually called
        // while the facts are in an invalid temporary state
        bart.setFather(homer);
        // Late update call for homer, after bart has been changed too, but before fireAllRules
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        KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
        kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
        StatefulKnowledgeSession kSession = createKnowledgeSession(kbase);

        kSession.setGlobal("totalHolder", new TotalHolder());
        Father abraham = new Father("abraham", null, 100);
        Father homer = new Father("homer", null, 20);
        Father bart = new Father("bart", null, 3);

        org.kie.api.runtime.rule.FactHandle abrahamHandle = kSession.insert(abraham);
        org.kie.api.runtime.rule.FactHandle bartHandle = kSession.insert(bart);
        kSession.fireAllRules();
        assertEquals(0, ((TotalHolder) kSession.getGlobal("totalHolder")).getTotal());

        bart.setFather(abraham);
        kSession.update(bartHandle, bart);
        kSession.fireAllRules();
        assertEquals(100, ((TotalHolder) kSession.getGlobal("totalHolder")).getTotal());

        bart.setFather(null);
        kSession.update(bartHandle, bart);
        kSession.fireAllRules();
        assertEquals(0, ((TotalHolder) kSession.getGlobal("totalHolder")).getTotal());

        bart.setFather(abraham);
        kSession.update(bartHandle, bart);
        kSession.fireAllRules();
        assertEquals(100, ((TotalHolder) kSession.getGlobal("totalHolder")).getTotal());

        org.kie.api.runtime.rule.FactHandle homerHandle = kSession.insert(homer);
        homer.setFather(abraham);
        kSession.update(homerHandle, homer);
        bart.setFather(homer);
        kSession.update(bartHandle, bart);
        kSession.fireAllRules();
        assertEquals(120, ((TotalHolder) kSession.getGlobal("totalHolder")).getTotal());
    }   
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Related Classes of org.drools.compiler.Father

  • org.drools.compiler.integrationtests.ExecutionFlowControlTest
  • org.drools.compiler.integrationtests.TruthMaintenanceTest
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