Package org.drools.rule

Examples of org.drools.rule.Pattern

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            super.initDeclaredMask( context, leftInput );
            return;
        }

        if ( !isRightInputIsRiaNode() ) {
            Pattern pattern = context.getLastBuiltPatterns()[0]; // right input pattern
            ObjectType objectType = pattern.getObjectType();

            if ( objectType instanceof ClassObjectType ) {
                Class objectClass = ((ClassObjectType) objectType).getClassType();
                if ( isPropertyReactive(context, objectClass) ) {
                    rightListenedProperties = pattern.getListenedProperties();
                    List<String> settableProperties = getSettableProperties( context.getRuleBase(), objectClass );
                    rightDeclaredMask = calculatePositiveMask(rightListenedProperties, settableProperties );
                    rightDeclaredMask |= constraints.getListenedPropertyMask( settableProperties );
                    rightNegativeMask = calculateNegativeMask(rightListenedProperties, settableProperties );
                } else {
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        // add all the rule's meta attributes
        buildMetaAttributes( context );

        final RuleConditionBuilder builder = (RuleConditionBuilder) context.getDialect().getBuilder( ruleDescr.getLhs().getClass() );
        if ( builder != null ) {
            Pattern prefixPattern = null;
            if ( context.getRuleDescr() instanceof QueryDescr ) {
                prefixPattern = context.getDialect().getQueryBuilder().build( context,
                                                                              (QueryDescr) context.getRuleDescr() );
            }
            final GroupElement ce = (GroupElement) builder.build( context,
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            // only happens during unit tests
            declaredMask = Long.MAX_VALUE;
            return;
        }
       
        Pattern pattern = context.getLastBuiltPatterns()[0];
        ObjectType objectType = pattern.getObjectType();
       
        if ( !(objectType instanceof ClassObjectType)) {
            // Only ClassObjectType can use property specific
            declaredMask = Long.MAX_VALUE;
            return;
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        // 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 ) {
            // build an external function executor
            AccumulateFunction function = context.getConfiguration().getAccumulateFunction( func.getFunction() );
            if ( function == null ) {
                context.addError( new DescrBuildError( accumDescr,
                                                              context.getRuleDescr(),
                                                              null,
                                                              "Unknown accumulate function: '" + func.getFunction() + "' on rule '" + context.getRuleDescr().getName()
                                                                      + "'. All accumulate functions must be registered before building a resource." ) );
                return null;
            }

            // if there is a binding, create the binding
            if ( func.getBind() != null ) {
                if ( pattern.getDeclaration( func.getBind() ) != null ) {
                    context.addError(new DescrBuildError(context.getParentDescr(),
                            accumDescr,
                            null,
                            "Duplicate declaration for variable '" + func.getBind() + "' in the rule '" + context.getRule().getName() + "'"));
                } else {
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        try {
            MVELDialect dialect = (MVELDialect) context.getDialect( context.getDialect().getId() );
           
            Map< String , Class<?> > declIds = context.getDeclarationResolver().getDeclarationClasses(context.getRule());
           
            Pattern p = ( Pattern ) context.getBuildStack().peek();
           
            context.setTypesafe( ((MVELAnalysisResult)analysis).isTypesafe() );
            MVELCompilationUnit unit = dialect.getMVELCompilationUnit((String) returnValueRestrictionDescr.getContent(),
                                                                      analysis, 
                                                                      previousDeclarations,
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        // creating the custom array reader
        InternalReadAccessor arrayReader = new SelfReferenceClassFieldReader( Object[].class,
                                                                              "this" );

        int index = 0;
        Pattern pattern = (Pattern) context.getBuildStack().peek();
        for ( AccumulateFunctionCallDescr fc : funcCalls ) {
            // find the corresponding function
            AccumulateFunction function = context.getConfiguration().getAccumulateFunction( fc.getFunction() );
            if ( function == null ) {
                context.addError( new DescrBuildError( accumDescr,
                                                              context.getRuleDescr(),
                                                              null,
                                                              "Unknown accumulate function: '" + fc.getFunction() + "' on rule '" + context.getRuleDescr().getName() + "'. All accumulate functions must be registered before building a resource." ) );
                return null;
            }

            // if there is a binding, create the binding
            if ( fc.getBind() != null ) {
                if ( pattern.getDeclaration( fc.getBind() ) != null ) {
                    context.addError(new DescrBuildError(context.getParentDescr(),
                            accumDescr,
                            null,
                            "Duplicate declaration for variable '" + fc.getBind() + "' in the rule '" + context.getRule().getName() + "'"));
                } else {
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        context.pushRuleComponent( collect );

        final List resultBetaConstraints = context.getBetaconstraints();
        final List resultAlphaConstraints = context.getAlphaConstraints();

        final Pattern sourcePattern = collect.getSourcePattern();
        final Pattern resultPattern = collect.getResultPattern();

        // get builder for the pattern
        final ReteooComponentBuilder builder = utils.getBuilderFor( sourcePattern );

        // save tuple source and pattern offset for later if needed
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            cast = bind[4];
        }
       

        try {
            Pattern pattern = reteTesterHelper.getPattern( Integer.parseInt( index ),
                                                           type );           
           
            ClassFieldAccessorStore store = (ClassFieldAccessorStore) context.get( "ClassFieldAccessorStore" );
           
           
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                                           20 );
        list.add( cheese1 );
        list.add( cheese2 );
        final MockDataProvider dataProvider = new MockDataProvider( list );
       
        final Pattern pattern = new Pattern( 0,
                                             new ClassObjectType( Cheese.class ) );
       
        From fromCe = new From(dataProvider);
        fromCe.setResultPattern( pattern );
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        final ClassFieldReader ageExtractor = store.getReader( Person.class,
                                                               "age",
                                                               getClass().getClassLoader() );

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

        final Declaration declaration = new Declaration( "age",
                                                         ageExtractor,
                                                         pattern );

        MvelConstraint variableConstraint = new MvelConstraintTestUtil("price == age", declaration, priceExtractor);

        final RuleBaseConfiguration configuration = new RuleBaseConfiguration();
        configuration.setIndexRightBetaMemory( false );
        configuration.setIndexLeftBetaMemory( false );
        final BetaConstraints betaConstraints = new SingleBetaConstraints( variableConstraint,
                                                                           configuration );

        final List list = new ArrayList();
        final Cheese cheese1 = new Cheese( "cheddar",
                                           18 );
        final Cheese cheese2 = new Cheese( "brie",
                                           12 );
        list.add( cheese1 );
        list.add( cheese2 );
        final MockDataProvider dataProvider = new MockDataProvider( list );
       
        From fromCe = new From(dataProvider);
        fromCe.setResultPattern( new Pattern( 0,
                                              new ClassObjectType( Cheese.class ) ) );

        final FromNode from = new FromNode( 4,
                                            dataProvider,
                                            null,
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