Package org.drools.core.spi

Examples of org.drools.core.spi.InternalReadAccessor

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    public void testIt() throws Exception {
        ClassFieldAccessorFactory factory = new ClassFieldAccessorFactory();
       
        ClassFieldAccessorCache.CacheEntry cachEntry = new ClassFieldAccessorCache.CacheEntry( Thread.currentThread().getContextClassLoader()  );

        InternalReadAccessor ex = factory.getClassFieldReader( TestBean.class,
                                                               "name",
                                                               cachEntry );
        assertEquals( "michael",
                      ex.getValue( null,
                                   new TestBean() ) );
        ex = factory.getClassFieldReader( TestBean.class,
                                          "age",
                                          cachEntry );
        assertEquals( 42,
                      ((Number) ex.getValue( null,
                                             new TestBean() )).intValue() );

    }
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    }

    @Test
    public void testInterface() throws Exception {
        final InternalReadAccessor ex = store.getReader( TestInterface.class,
                                                         "something",
                                                         getClass().getClassLoader() );
        assertEquals( 1,
                      ex.getIndex() );
        assertEquals( "foo",
                      ex.getValue( null,
                                   new TestInterfaceImpl() ) );
    }
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            ClassFieldAccessorStore store = (ClassFieldAccessorStore) context.get( "ClassFieldAccessorStore" );
           
           

            InternalReadAccessor extractor = null;
            if ( field.startsWith( "[" ) ) {
                extractor = store.getReader( ArrayElements.class,
                                             "elements",
                                             getClass().getClassLoader() );
               
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                                   new TestInterfaceImpl() ) );
    }

    @Test
    public void testAbstract() throws Exception {
        final InternalReadAccessor ex = store.getReader( TestAbstract.class,
                                                         "something",
                                                         getClass().getClassLoader() );
        assertEquals( 2,
                      ex.getIndex() );
        assertEquals( "foo",
                      ex.getValue( null,
                                   new TestAbstractImpl() ) );
    }
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                                                            new BoundIdentifiers( Collections.EMPTY_MAP,
                                                                                  Collections.EMPTY_MAP,
                                                                                  Collections.EMPTY_MAP,
                                                                                  type.getTypeClass() ) );

            InternalReadAccessor reader = pkg.getClassFieldAccessorStore().getMVELReader( ClassUtils.getPackage( type.getTypeClass() ),
                                                                                          type.getTypeClass().getName(),
                                                                                          timestamp,
                                                                                          type.isTypesafe(),
                                                                                          results.getReturnType() );

            MVELDialectRuntimeData data = (MVELDialectRuntimeData) pkg.getDialectRuntimeRegistry().getDialectData( "mvel" );
            data.addCompileable( (MVELCompileable) reader );
            ((MVELCompileable) reader).compile( data );
            type.setTimestampExtractor( reader );
        }

        annotationDescr = typeDescr.getAnnotation( TypeDeclaration.ATTR_DURATION );
        String duration = (annotationDescr != null) ? annotationDescr.getSingleValue() : null;
        if ( duration != null ) {
            type.setDurationAttribute( duration );
            Package pkg = pkgRegistry.getPackage();

            MVELDialect dialect = (MVELDialect) pkgRegistry.getDialectCompiletimeRegistry().getDialect( "mvel" );
            PackageBuildContext context = new PackageBuildContext();
            context.init( this, pkg, typeDescr, pkgRegistry.getDialectCompiletimeRegistry(), dialect, null );
            if ( !type.isTypesafe() ) {
                context.setTypesafe( false );
            }

            MVELAnalysisResult results = (MVELAnalysisResult)
                    context.getDialect().analyzeExpression( context,
                                                            typeDescr,
                                                            duration,
                                                            new BoundIdentifiers( Collections.EMPTY_MAP,
                                                                                  Collections.EMPTY_MAP,
                                                                                  Collections.EMPTY_MAP,
                                                                                  type.getTypeClass() ) );

            if ( results != null ) {
                InternalReadAccessor reader = pkg.getClassFieldAccessorStore().getMVELReader( ClassUtils.getPackage( type.getTypeClass() ),
                                                                                              type.getTypeClass().getName(),
                                                                                              duration,
                                                                                              type.isTypesafe(),
                                                                                              results.getReturnType() );
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                                            String expr,
                                            String value1,
                                            String value2,
                                            boolean isConstant) {

        final InternalReadAccessor extractor = getFieldReadAccessor( context, relDescr, pattern.getObjectType(), value1, null, false );
        return extractor != null && addConstraintToPattern(context, pattern, relDescr, expr, value1, value2, isConstant, extractor);
    }
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            }
        }

        Declaration declr = pattern.addDeclaration( fieldBindingDescr.getVariable() );

        final InternalReadAccessor extractor = getFieldReadAccessor( context,
                                                                     fieldBindingDescr,
                                                                     pattern.getObjectType(),
                                                                     fieldBindingDescr.getExpression(),
                                                                     declr,
                                                                     true );
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        final Declaration declaration = new Declaration( identifier,
                                                         null,
                                                         pattern,
                                                         true );

        InternalReadAccessor extractor = getFieldReadAccessor( context,
                                                               implicitBinding,
                                                               pattern.getObjectType(),
                                                               implicitBinding.getExpression(),
                                                               declaration,
                                                               false );
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                                                             final ObjectType objectType,
                                                             final String fieldName,
                                                             final AcceptsReadAccessor target,
                                                             final boolean reportError ) {
        // reportError is needed as some times failure to build accessor is not a failure, just an indication that building is not possible so try something else.
        InternalReadAccessor reader;

        if ( ValueType.FACTTEMPLATE_TYPE.equals( objectType.getValueType() ) ) {
            //@todo use accessor cache           
            final FactTemplate factTemplate = ((FactTemplateObjectType) objectType).getFactTemplate();
            reader = new FactTemplateFieldExtractor( factTemplate,
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    @Test
    public void testPredicateConstraint() throws IntrospectionException {
        final ReteooRuleBase ruleBase = (ReteooRuleBase) RuleBaseFactory.newRuleBase();
        final InternalWorkingMemory workingMemory = (InternalWorkingMemory) ruleBase.newStatefulSession();

        final InternalReadAccessor priceExtractor = store.getReader( Cheese.class,
                                                                     "price",
                                                                     getClass().getClassLoader() );

        Pattern pattern = new Pattern( 0,
                                       new ClassObjectType( Cheese.class ) );
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Related Classes of org.drools.core.spi.InternalReadAccessor

  • org.drools.compiler.builder.impl.TypeDeclarationBuilder
  • org.drools.compiler.builder.impl.TypeDeclarationConfigurator
  • org.drools.compiler.compiler.PackageBuilder
  • org.drools.compiler.phreak.BetaNodeBuilder
  • org.drools.compiler.rule.builder.dialect.java.JavaAccumulateBuilder
  • org.drools.compiler.rule.builder.dialect.java.JavaConsequenceBuilderTest
  • org.drools.compiler.rule.builder.dialect.mvel.MVELAccumulateBuilder
  • org.drools.compiler.rule.builder.dialect.mvel.MVELEvalBuilderTest
  • org.drools.compiler.rule.builder.dialect.mvel.MVELPredicateBuilderTest
  • org.drools.compiler.rule.builder.PatternBuilder
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