Package org.drools.spi

Examples of org.drools.spi.FieldExtractor

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    protected BetaNodeFieldConstraint getConstraint(String identifier,
                                                    Operator operator,
                                                    String fieldName,
                                                    Class clazz) {
        FieldExtractor extractor = ClassFieldExtractorCache.getInstance().getExtractor( clazz,
                                                                                        fieldName,
                                                                                        getClass().getClassLoader() );
        Declaration declaration = new Declaration( identifier,
                                                   extractor,
                                                   new Pattern( 0,
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                                                          final String fieldName,
                                                          final int fieldValue,
                                                          final Evaluator evaluator) throws IntrospectionException {
        final Class clazz = ((ClassObjectType) pattern.getObjectType()).getClassType();

        final FieldExtractor extractor = ClassFieldExtractorCache.getInstance().getExtractor( clazz,
                                                                                              fieldName,
                                                                                              getClass().getClassLoader() );

        final FieldValue field = new LongFieldImpl( fieldValue );
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                                                          final String fieldName,
                                                          final boolean fieldValue,
                                                          final Evaluator evaluator) throws IntrospectionException {
        final Class clazz = ((ClassObjectType) pattern.getObjectType()).getClassType();

        final FieldExtractor extractor = ClassFieldExtractorCache.getInstance().getExtractor( clazz,
                                                                                              fieldName,
                                                                                              getClass().getClassLoader() );

        final FieldValue field = new BooleanFieldImpl( fieldValue );
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    private void setFieldDeclaration(final Pattern pattern,
                                     final String fieldName,
                                     final String identifier) throws IntrospectionException {
        final Class clazz = ((ClassObjectType) pattern.getObjectType()).getClassType();

        final FieldExtractor extractor = ClassFieldExtractorCache.getInstance().getExtractor( clazz,
                                                                                              fieldName,
                                                                                              getClass().getClassLoader() );

        pattern.addDeclaration( identifier,
                                extractor );
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                                                               final String fieldName,
                                                               final Declaration declaration,
                                                               final Evaluator evaluator) throws IntrospectionException {
        final Class clazz = ((ClassObjectType) pattern.getObjectType()).getClassType();

        final FieldExtractor extractor = ClassFieldExtractorCache.getInstance().getExtractor( clazz,
                                                                                              fieldName,
                                                                                              getClass().getClassLoader() );

        return new VariableConstraint( extractor,
                                       declaration,
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     */
    public void testPredicateConstraint() throws IntrospectionException {
        final ReteooRuleBase ruleBase = (ReteooRuleBase) RuleBaseFactory.newRuleBase();
        final InternalWorkingMemory workingMemory = (InternalWorkingMemory) ruleBase.newStatefulSession();

        final FieldExtractor priceExtractor = cache.getExtractor( Cheese.class,
                                                                  "price",
                                                                  getClass().getClassLoader() );

        Pattern pattern = new Pattern( 0,
                                       new ClassObjectType( Cheese.class ) );
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     */
    public void testReturnValueConstraint() throws IntrospectionException {
        final ReteooRuleBase ruleBase = (ReteooRuleBase) RuleBaseFactory.newRuleBase();
        final InternalWorkingMemory workingMemory = (InternalWorkingMemory) ruleBase.newStatefulSession();

        final FieldExtractor priceExtractor = cache.getExtractor( Cheese.class,
                                                                  "price",
                                                                  getClass().getClassLoader() );

        final Pattern pattern = new Pattern( 0,
                                             new ClassObjectType( Cheese.class ) );
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    }

    public void testTripleAlpha() {
        final CompositeObjectSinkAdapter ad = new CompositeObjectSinkAdapter();
        FieldExtractor extractor = ClassFieldExtractorCache.getInstance().getExtractor( Cheese.class,
                                                                                        "type",
                                                                                        this.getClass().getClassLoader() );
       
        final LiteralConstraint lit = new LiteralConstraint( extractor,
                                                             StringFactory.getInstance().getEvaluator( Operator.EQUAL ),
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    }

    public void testTripleAlphaCharacterConstraint() {
        final CompositeObjectSinkAdapter ad = new CompositeObjectSinkAdapter();
        FieldExtractor extractor = ClassFieldExtractorCache.getInstance().getExtractor( Cheese.class,
                                                                                        "charType",
                                                                                        this.getClass().getClassLoader() );
       
        final LiteralConstraint lit = new LiteralConstraint( extractor,
                                                             CharacterFactory.getInstance().getEvaluator( Operator.EQUAL ),
                                                             new LongFieldImpl( 65 ) ); // chars are handled as integers
        final AlphaNode al = new AlphaNode( buildContext.getNextId(),
                                            lit,
                                            new MockObjectSource( buildContext.getNextId() ),
                                            buildContext );

        ad.addObjectSink( al );

        assertNull( ad.otherSinks );
        assertNotNull( ad.hashedFieldIndexes );
        assertEquals( 1,
                      ad.hashableSinks.size() );
        assertEquals( al,
                      ad.getSinks()[0] );

        final LiteralConstraint lit2 = new LiteralConstraint( extractor,
                                                              CharacterFactory.getInstance().getEvaluator( Operator.EQUAL ),
                                                              new LongFieldImpl( 66 ) );
        final AlphaNode al2 = new AlphaNode( buildContext.getNextId(),
                                             lit2,
                                             new MockObjectSource( buildContext.getNextId() ),
                                             buildContext );

        ad.addObjectSink( al2 );

        assertNull( ad.hashedSinkMap );
        assertEquals( 2,
                      ad.hashableSinks.size() );

        final LiteralConstraint lit3 = new LiteralConstraint( extractor,
                                                              CharacterFactory.getInstance().getEvaluator( Operator.EQUAL ),
                                                              new LongFieldImpl( 67 ) );
        final AlphaNode al3 = new AlphaNode( buildContext.getNextId(),
                                             lit3,
                                             new MockObjectSource( buildContext.getNextId() ),
                                             buildContext );
        ad.addObjectSink( al3 );

        //this should now be nicely hashed.
        assertNotNull( ad.hashedSinkMap );
        assertNull( ad.hashableSinks );
       
        // test propagation
        Cheese cheese = new Cheese();
        cheese.setCharType( 'B' );
        CompositeObjectSinkAdapter.HashKey hashKey = new CompositeObjectSinkAdapter.HashKey();
       
        // should find this
        hashKey.setValue( extractor.getIndex(),
                          cheese,
                          extractor );
        ObjectSink sink = (ObjectSink) ad.hashedSinkMap.get( hashKey );
        assertSame( al2, sink );

        // should not find this one
        cheese.setCharType( 'X' );
        hashKey.setValue( extractor.getIndex(),
                          cheese,
                          extractor );
        sink = (ObjectSink) ad.hashedSinkMap.get( hashKey );
        assertNull( sink );
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    }

    public void testPropagationWithNullValue() {

        final CompositeObjectSinkAdapter ad = new CompositeObjectSinkAdapter();
        FieldExtractor extractor = ClassFieldExtractorCache.getInstance().getExtractor( Cheese.class,
                                                                                        "type",
                                                                                        this.getClass().getClassLoader() );
        final LiteralConstraint lit1 = new LiteralConstraint( extractor,
                                                              StringFactory.getInstance().getEvaluator( Operator.EQUAL ),
                                                              new ObjectFieldImpl( "stilton" ) );
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Related Classes of org.drools.spi.FieldExtractor

  • org.drools.base.BaseClassFieldExtractorFactoryTest
  • org.drools.base.extractors.MVELClassFieldExtractor
  • org.drools.common.BaseBetaConstraintsTest
  • org.drools.examples.manners.BaseMannersTest
  • org.drools.reteoo.AlphaNodeTest
  • org.drools.reteoo.CompositeObjectSinkAdapter
  • org.drools.reteoo.CompositeObjectSinkAdapterTest
  • org.drools.rule.builder.dialect.mvel.MVELEvalBuilderTest
  • org.drools.rule.builder.dialect.mvel.MVELPredicateBuilderTest
  • org.drools.rule.builder.dialect.mvel.MVELReturnValueBuilderTest
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