Examples of org.drools.definition.type.FactType

org.drools.definition.type.FactType
FactType declarations are fact definitions (like classes) that are managed alongside the rules. You then communicate with the rulebase/knowledge base by using instances created by this. There are utility set and get methods on this, as well as in the FactFields. The Object that is used is a javabean (which was generated by the engine). You can also use reflection on it as normal. @author etirelli






    public void testBoxedFieldInit() throws Exception {
        StatefulKnowledgeSession ksession = genSession("test_ExtFieldInit.drl");
        FactType test = ksession.getKnowledgeBase().getFactType("org.drools.compiler","MyBoxBean");


        Object x = test.newInstance();
        assertNotNull(x);


        assertEquals(12,test.get(x,"fieldint"));
        assertEquals(3.23,test.get(x,"fielddbl"));
        assertEquals(1.2f,test.get(x,"fieldflt"));
        short sht = 2;
        assertEquals(sht,test.get(x,"fieldsht"));
        byte byt = 1;
        assertEquals(byt,test.get(x,"fieldbyt"));
        assertEquals(true,test.get(x,"fieldbln"));
        assertEquals('x',test.get(x,"fieldchr"));
        assertEquals(9999L,test.get(x,"fieldlng"));


        System.out.println(x);


    }

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        List out = new ArrayList();
        ksession.setGlobal("ans",out);


        ksession.fireAllRules();


        FactType type = kbase.getFactType("test.beans","Bean2");
        assertEquals(4, type.get(out.get(0),"fld"));
        assertEquals("xxx", type.get(out.get(0),"myField"));
        assertEquals(0.0, type.get(out.get(0),"moref"));






    }

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    public FactType getFactType( final String name ) {
        readLock();
        try {
            for ( Package pkg : this.pkgs.values() ) {
                FactType type = pkg.getFactType( name );
                if ( type != null ) {
                    return type;
                }
            }
            return null;

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        //just 1 package was created
        Assert.assertEquals(1, kbuilder.getKnowledgePackages().size());


        //Get the Fact Type for org.drools.EventA
        FactType factType = ((KnowledgePackageImp)kbuilder.getKnowledgePackages().iterator().next()).pkg.getFactType("org.drools.EventA");
        Assert.assertNotNull(factType);


        //'name' field must still be there
        FactField field = factType.getField("name");
        Assert.assertNotNull(field);


        //'duration' field must still be there
        field = factType.getField("duration");
        Assert.assertNotNull(field);


        //New Annotations must be there too
        TypeDeclaration typeDeclaration = ((KnowledgePackageImp)kbuilder.getKnowledgePackages().iterator().next()).pkg.getTypeDeclaration("EventA");

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        assertFalse(kbuilder.hasErrors());


        KnowledgeBase kBase = KnowledgeBaseFactory.newKnowledgeBase();
        kBase.addKnowledgePackages( kbuilder.getKnowledgePackages() );


        FactType bean = kBase.getFactType( "org.drools.test", "Bean" );
        FactType pers = kBase.getFactType( "org.drools", "Person" );
        assertEquals( "org.drools.test.Bean", bean.getName() );
        assertEquals( "Bean", bean.getSimpleName() );
        assertEquals( "org.drools.test", bean.getPackageName() );


        assertEquals( 1, bean.getClassAnnotations().size() );

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        kb.addKnowledgePackages( kbuilder.getKnowledgePackages() );


        TraitFactory tFactory = ((AbstractRuleBase) ((KnowledgeBaseImpl) kb).getRuleBase()).getConfiguration().getComponentFactory().getTraitFactory();


        try {
            FactType impClass = kb.getFactType( "org.test",
                                                "Imp" );
            TraitableBean imp = (TraitableBean) impClass.newInstance();
            Class trait = kb.getFactType( "org.test",
                                          "Student" ).getFactClass();


            TraitProxy proxy = (TraitProxy) tFactory.getProxy( imp,
                                                               trait );


            Map<String, Object> virtualFields = imp._getDynamicProperties();
            Map<String, Object> wrapper = proxy.getFields();


            wrapper.put( "name",
                         "john" );


            wrapper.put( "virtualField",
                         "xyz" );


            wrapper.entrySet();
            assertEquals( 4,
                          wrapper.size() );
            assertEquals( 2,
                          virtualFields.size() );


            assertEquals( "john",
                          wrapper.get( "name" ) );
            assertEquals( "xyz",
                          wrapper.get( "virtualField" ) );


            assertEquals( "john",
                          impClass.get( imp,
                                        "name" ) );


        } catch (Exception e) {
            e.printStackTrace();
            fail( e.getMessage() );

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        kb.addKnowledgePackages( kbuilder.getKnowledgePackages() );
        TraitFactory.setMode( mode, kb );
        TraitFactory tFactory = ((AbstractRuleBase) ((KnowledgeBaseImpl) kb).getRuleBase()).getConfiguration().getComponentFactory().getTraitFactory();


        try {
            FactType impClass = kb.getFactType( "org.test",
                                                "Imp" );
            TraitableBean imp = (TraitableBean) impClass.newInstance();
            impClass.set( imp,
                          "name",
                          "aaa" );


            Class trait = kb.getFactType( "org.test",
                                          "Student" ).getFactClass();
            Class trait2 = kb.getFactType( "org.test",
                                           "Role" ).getFactClass();


            assertNotNull( trait );
            TraitProxy proxy = (TraitProxy) tFactory.getProxy( imp,
                                                                   trait );
            proxy.getFields().put( "field",
                                   "xyz" );
            //            proxy.getFields().put("name", "aaa");


            assertNotNull( proxy );


            TraitProxy proxy2 = (TraitProxy) tFactory.getProxy( imp,
                                                                    trait );
            assertSame( proxy2,
                        proxy );


            TraitProxy proxy3 = (TraitProxy) tFactory.getProxy( imp,
                                                                    trait2 );
            assertNotNull( proxy3 );
            assertEquals( "xyz",
                          proxy3.getFields().get( "field" ) );
            assertEquals( "aaa",
                          proxy3.getFields().get( "name" ) );


            TraitableBean imp2 = (TraitableBean) impClass.newInstance();
            impClass.set( imp2,
                          "name",
                          "aaa" );
            TraitProxy proxy4 = (TraitProxy) tFactory.getProxy( imp2,
                                                                    trait );
            //            proxy4.getFields().put("name", "aaa");

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        TraitFactory.setMode( mode, kb );
        TraitFactory tFactory = ((AbstractRuleBase) ((KnowledgeBaseImpl) kb).getRuleBase()).getConfiguration().getComponentFactory().getTraitFactory();




        try {
            FactType impClass = kb.getFactType( "org.test",
                                                "Imp" );
            TraitableBean imp = (TraitableBean) impClass.newInstance();
            FactType traitClass = kb.getFactType( "org.test",
                                                  "Student" );
            Class trait = traitClass.getFactClass();
            TraitProxy proxy = (TraitProxy) tFactory.getProxy( imp,
                                                                   trait );


            Map<String, Object> virtualFields = imp._getDynamicProperties();
            Map<String, Object> wrapper = proxy.getFields();
            assertEquals( 3,
                          wrapper.size() );
            assertEquals( 1,
                          virtualFields.size() );


            impClass.set(imp,
                    "name",
                    "john");
            assertEquals( 3,
                          wrapper.size() );
            assertEquals( 1,
                          virtualFields.size() );


            proxy.getFields().put( "school",
                                   "skol" );
            assertEquals( 3,
                          wrapper.size() );
            assertEquals( 1,
                          virtualFields.size() );


            proxy.getFields().put( "surname",
                                   "xxx" );
            assertEquals( 4,
                          wrapper.size() );
            assertEquals( 2,
                          virtualFields.size() );


            //            FactType indClass = kb.getFactType("org.test","Entity");
            //            TraitableBean ind = (TraitableBean) indClass.newInstance();
            TraitableBean ind = new Entity();


            TraitProxy proxy2 = (TraitProxy) tFactory.getProxy( ind,
                                                                    trait );


            Map virtualFields2 = ind._getDynamicProperties();
            Map wrapper2 = proxy2.getFields();
            assertEquals( 3,
                          wrapper2.size() );
            assertEquals( 3,
                          virtualFields2.size() );


            traitClass.set( proxy2,
                            "name",
                            "john" );
            assertEquals( 3,
                          wrapper2.size() );
            assertEquals( 3,
                          virtualFields2.size() );


            proxy2.getFields().put( "school",
                                    "skol" );
            assertEquals( 3,
                          wrapper2.size() );
            assertEquals( 3,
                          virtualFields2.size() );


            proxy2.getFields().put( "surname",
                                    "xxx" );
            assertEquals( 4,
                          wrapper2.size() );
            assertEquals( 4,
                          virtualFields2.size() );


            FactType traitClass2 = kb.getFactType( "org.test",
                                                   "Role" );
            Class trait2 = traitClass2.getFactClass();
            //            TraitableBean ind2 = (TraitableBean) indClass.newInstance();
            TraitableBean ind2 = new Entity();


            TraitProxy proxy99 = (TraitProxy) tFactory.getProxy( ind2,
                                                                     trait2 );

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        TraitFactory.setMode( mode, kb );


        TraitFactory tFactory = ((AbstractRuleBase) ((KnowledgeBaseImpl) kb).getRuleBase()).getConfiguration().getComponentFactory().getTraitFactory();


        try {
            FactType impClass = kb.getFactType( "org.test",
                                                "Imp" );
            TraitableBean imp = (TraitableBean) impClass.newInstance();


            FactType studentClass = kb.getFactType( "org.test",
                                                    "Student" );
            Class trait = studentClass.getFactClass();
            TraitProxy proxy = (TraitProxy) tFactory.getProxy( imp,
                                                               trait );


            Map<String, Object> virtualFields = imp._getDynamicProperties();
            Map<String, Object> wrapper = proxy.getFields();
            assertFalse( wrapper.isEmpty() );


            studentClass.set( proxy,
                              "name",
                              "john" );
            assertFalse( wrapper.isEmpty() );
            studentClass.set( proxy,
                              "name",
                              null );
            assertFalse( wrapper.isEmpty() );


            studentClass.set( proxy,
                              "age",
                              32 );
            assertFalse( wrapper.isEmpty() );


            studentClass.set( proxy,
                              "age",
                              null );
            assertFalse( wrapper.isEmpty() );


            //            FactType indClass = kb.getFactType("org.test","Entity");
            TraitableBean ind = new Entity();


            FactType RoleClass = kb.getFactType( "org.test",
                                                 "Role" );
            Class trait2 = RoleClass.getFactClass();
            TraitProxy proxy2 = (TraitProxy) tFactory.getProxy( ind,
                                                                trait2 );


            Map<String, Object> wrapper2 = proxy2.getFields();
            assertTrue( wrapper2.isEmpty() );

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        TraitFactory.setMode( mode, kb );
        TraitFactory tFactory = ((AbstractRuleBase) ((KnowledgeBaseImpl) kb).getRuleBase()).getConfiguration().getComponentFactory().getTraitFactory();


        try {
            FactType impClass = kb.getFactType( "org.test",
                                                "Imp" );
            TraitableBean imp = (TraitableBean) impClass.newInstance();
            impClass.set( imp,
                          "name",
                          "john" );


            FactType traitClass = kb.getFactType( "org.test",
                                                  "Student" );
            Class trait = traitClass.getFactClass();
            TraitProxy proxy = (TraitProxy) tFactory.getProxy( imp,
                                                                   trait );


            Map<String, Object> virtualFields = imp._getDynamicProperties();
            Map<String, Object> wrapper = proxy.getFields();


            assertTrue( wrapper.containsKey( "name" ) );
            assertTrue( wrapper.containsKey( "school" ) );
            assertTrue( wrapper.containsKey( "age" ) );
            assertFalse( wrapper.containsKey( "surname" ) );


            proxy.getFields().put( "school",
                                   "skol" );
            proxy.getFields().put( "surname",
                                   "xxx" );
            assertTrue( wrapper.containsKey( "surname" ) );


            //            FactType indClass = kb.getFactType("org.test","Entity");
            TraitableBean ind = new Entity();


            TraitProxy proxy2 = (TraitProxy) tFactory.getProxy( ind,
                                                                trait );


            Map virtualFields2 = ind._getDynamicProperties();
            Map wrapper2 = proxy2.getFields();
            assertTrue( wrapper2.containsKey( "name" ) );
            assertTrue( wrapper2.containsKey( "school" ) );
            assertTrue( wrapper2.containsKey( "age" ) );
            assertFalse( wrapper2.containsKey( "surname" ) );


            traitClass.set( proxy2,
                            "name",
                            "john" );
            proxy2.getFields().put( "school",
                                    "skol" );
            proxy2.getFields().put( "surname",
                                    "xxx" );
            assertTrue( wrapper2.containsKey( "surname" ) );


            FactType traitClass2 = kb.getFactType( "org.test",
                                                   "Role" );
            Class trait2 = traitClass2.getFactClass();
            TraitableBean ind2 = new Entity();


            TraitProxy proxy99 = (TraitProxy) tFactory.getProxy( ind2,
                                                                 trait2 );
            Map<String, Object> wrapper99 = proxy99.getFields();

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