Package org.drools.core.base.extractors

Examples of org.drools.core.base.extractors.SelfReferenceClassFieldReader

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        Accumulator[] accumulators;
        List<AccumulateFunctionCallDescr> functions = accumDescr.getFunctions();

        accumulators = new Accumulator[functions.size()];
        // creating the custom array reader
        InternalReadAccessor arrayReader = new SelfReferenceClassFieldReader( Object[].class,
                                                                              "this" );

        int index = 0;
        Pattern pattern = (Pattern) context.getBuildStack().peek();
        for ( AccumulateFunctionCallDescr func : functions ) {
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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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                if( ClassObjectType.DroolsQuery_ObjectType.isAssignableFrom( resolved.getPattern().getObjectType() ) ) {
                    // if the resolved still points to DroolsQuery, we know this is the first unification pattern, so redeclare it as the visible Declaration
                    declr = pattern.addDeclaration( declr.getIdentifier() );

                    // this bit is different, notice its the ArrayElementReader that we wire up to, not the declaration.
                    ArrayElementReader reader = new ArrayElementReader( new SelfReferenceClassFieldReader(Object[].class, "this"),
                                                                        qe.getDeclIndexes()[i],
                                                                        resolved.getExtractor().getExtractToClass() );                   

                    declr.setReadAccessor( reader ); 
                   
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//        }
        try {
            // if it is a self reference
            if ( SELF_REFERENCE_FIELD.equals( fieldName ) ) {
                // then just create an instance of the special class field extractor
                return new SelfReferenceClassFieldReader( clazz,
                                                          fieldName );
            } else {
                // otherwise, bytecode generate a specific extractor
                ClassFieldInspector inspector = inspectors.get( clazz );
                if ( inspector == null ) {
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Related Classes of org.drools.core.base.extractors.SelfReferenceClassFieldReader

  • org.drools.compiler.rule.builder.dialect.java.JavaAccumulateBuilder
  • org.drools.compiler.rule.builder.dialect.mvel.MVELAccumulateBuilder
  • org.drools.compiler.rule.builder.QueryElementBuilder
  • org.drools.core.base.ClassFieldAccessorFactory
  • org.drools.core.reteoo.builder.BuildUtilsTest
  • org.drools.core.rule.LogicTransformer
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