Package org.drools.spi

Examples of org.drools.spi.InternalReadAccessor

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            String timestamp = (annotationDescr != null) ? annotationDescr.getSingleValue() : null;
            if ( timestamp != null ) {
                type.setTimestampAttribute( timestamp );
                ClassDefinition cd = type.getTypeClassDef();
                Package pkg = pkgRegistry.getPackage();
                InternalReadAccessor reader = pkg.getClassFieldAccessorStore().getMVELReader( ClassUtils.getPackage( type.getTypeClass() ),
                                                                                              type.getTypeClass().getName(),
                                                                                              timestamp,
                                                                                              type.isTypesafe() );
                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 );
                ClassDefinition cd = type.getTypeClassDef();
                Package pkg = pkgRegistry.getPackage();
                InternalReadAccessor reader = pkg.getClassFieldAccessorStore().getMVELReader( ClassUtils.getPackage( type.getTypeClass() ),
                                                                                              type.getTypeClass().getName(),
                                                                                              duration,
                                                                                              type.isTypesafe() );
                MVELDialectRuntimeData data = (MVELDialectRuntimeData) pkg.getDialectRuntimeRegistry().getDialectData( "mvel" );
                data.addCompileable( (MVELCompileable) reader );
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            String normalizedExpr;

            if (!getExprBindings(context, pattern, values[1]).isConstant()) {
                normalizedExpr = subExprs[i++];
            } else {
                InternalReadAccessor extractor = getFieldReadAccessor( context, relDescr, pattern.getObjectType(), values[0], null, true );
                if (extractor == null) {
                    normalizedExpr = subExprs[i++];
                } else {
                    ValueType vtype = extractor.getValueType();
                    LiteralRestrictionDescr restrictionDescr = new LiteralRestrictionDescr( relDescr.getOperator(),
                                                                                            relDescr.isNegated(),
                                                                                            relDescr.getParameters(),
                                                                                            values[1],
                                                                                            LiteralRestrictionDescr.TYPE_STRING );
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                                            String expr,
                                            String value1,
                                            String value2,
                                            boolean isConstant) {

        final InternalReadAccessor extractor = getFieldReadAccessor( context, relDescr, pattern.getObjectType(), value1, null, true );
        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.getBindingField(),
                                                                     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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        final Pattern pattern = new Pattern( context.getNextPatternId(),
                                             0, // offset is 0 by default
                                             queryObjectType,
                                             null );
       
        final InternalReadAccessor extractor = PatternBuilder.getFieldReadAccessor(context, queryDescr, queryObjectType, "name", null, true);
        final QueryNameConstraint constraint = new QueryNameConstraint(extractor, queryDescr.getName());

        PatternBuilder.registerReadAccessor( context, queryObjectType, "name", constraint );

        // adds appropriate constraint to the pattern
        pattern.addConstraint( constraint );

        ObjectType argsObjectType = ClassObjectType.DroolsQuery_ObjectType;
       
        InternalReadAccessor arrayExtractor = PatternBuilder.getFieldReadAccessor( context, queryDescr, argsObjectType, "elements", null, true );

        String[] params = queryDescr.getParameters();
        String[] types = queryDescr.getParameterTypes();
        int i = 0;
       
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    public void wire() {
        for ( Entry<AccessorKey, BaseLookupEntry> entry : lookup.entrySet() ) {
            switch ( entry.getValue().getAccessorType() ) {
                case FieldAccessor : {
                    InternalReadAccessor reader = ((FieldLookupEntry) entry.getValue()).getClassFieldReader();
                    if ( reader != null ) {
                        wire( reader );
                    }

                    ClassFieldWriter writer = ((FieldLookupEntry) entry.getValue()).getClassFieldWriter();
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            arguments.add( null );
        }
        List<Declaration> requiredDeclarations = new ArrayList<Declaration>();

        ObjectType argsObjectType = ClassObjectType.ObjectArray_ObjectType;
        InternalReadAccessor arrayReader = new SelfReferenceClassFieldReader( Object[].class,
                                                                              "this" );
        Pattern pattern = new Pattern( context.getNextPatternId(),
                                       0,
                                       argsObjectType,
                                       null );
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            String readMethod = declaration.getNativeReadMethodName();
            boolean isObject = readMethod.equals("getValue");
            String returnedType = isObject ? "Ljava/lang/Object;" : typeDescr(declarationType);
            mv.visitMethodInsn(INVOKEVIRTUAL, "org/drools/rule/Declaration", readMethod, "(Lorg/drools/common/InternalWorkingMemory;Ljava/lang/Object;)" + returnedType);
            if (isObject) {
                InternalReadAccessor extractor = declaration.getExtractor();
                if (extractor != null) {
                    cast(extractor.getExtractToClass());
                }
            }
            return store(registry, declarationType);
        }
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Related Classes of org.drools.spi.InternalReadAccessor

  • org.drools.base.BaseClassFieldAccessorFactoryTest
  • org.drools.base.ClassFieldAccessorStore
  • org.drools.base.EvaluatorFactoryTest
  • org.drools.base.extractors.MVELClassFieldExtractorTest
  • org.drools.base.extractors.MVELClassFieldReader
  • org.drools.base.extractors.ObjectClassFieldExtractorTest
  • org.drools.base.TemporalEvaluatorFactoryTest
  • org.drools.common.BaseBetaConstraintsTest
  • org.drools.compiler.PackageBuilder
  • org.drools.examples.manners.BaseMannersTest
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