Package org.drools.rule

Examples of org.drools.rule.LiteralConstraint

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        final GroupElement exists = (GroupElement) lhs.getChildren().get( 0 );
        assertLength( 1,
                      exists.getChildren() );
        final Pattern pattern = (Pattern) exists.getChildren().get( 0 );

        final LiteralConstraint literalConstarint = (LiteralConstraint) pattern.getConstraints().get( 0 );
    }
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    //  r : Row()
    //  Cell(row == r, column == "column1")
    //  Cell(row == r, column == "column2")
    assertEquals(3, lhs.getChildren().size());
    org.drools.rule.Pattern pattern = (org.drools.rule.Pattern) lhs.getChildren().get(1);
    LiteralConstraint constraint = (LiteralConstraint) pattern.getConstraints().get(1);
    assertEquals("column1", constraint.getField().getValue());
    pattern = (org.drools.rule.Pattern) lhs.getChildren().get(2);
    constraint = (LiteralConstraint) pattern.getConstraints().get(1);
    assertEquals("column2", constraint.getField().getValue());
  }
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        if ( sink instanceof AlphaNode ) {
            final AlphaNode alphaNode = (AlphaNode) sink;
            final AlphaNodeFieldConstraint fieldConstraint = alphaNode.getConstraint();

            if ( fieldConstraint instanceof LiteralConstraint ) {
                final LiteralConstraint literalConstraint = (LiteralConstraint) fieldConstraint;
                final Evaluator evaluator = literalConstraint.getEvaluator();

                if ( evaluator.getOperator() == Operator.EQUAL ) {
                    final int index = literalConstraint.getFieldExtractor().getIndex();
                    final FieldIndex fieldIndex = registerFieldIndex( index,
                                                                      literalConstraint.getFieldExtractor() );

                    if ( fieldIndex.getCount() >= this.alphaNodeHashingThreshold ) {
                        if ( !fieldIndex.isHashed() ) {
                            hashSinks( fieldIndex );
                        }
                        final FieldValue value = literalConstraint.getField();
                        // no need to check, we know  the sink  does not exist
                        this.hashedSinkMap.put( new HashKey( index,
                                                             value ),
                                                sink,
                                                false );
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        if ( sink instanceof AlphaNode ) {
            final AlphaNode alphaNode = (AlphaNode) sink;
            final AlphaNodeFieldConstraint fieldConstraint = alphaNode.getConstraint();

            if ( fieldConstraint instanceof LiteralConstraint ) {
                final LiteralConstraint literalConstraint = (LiteralConstraint) fieldConstraint;
                final Evaluator evaluator = literalConstraint.getEvaluator();
                final FieldValue value = literalConstraint.getField();

                if ( evaluator.getOperator() == Operator.EQUAL ) {
                    final int index = literalConstraint.getFieldExtractor().getIndex();
                    final FieldIndex fieldIndex = unregisterFieldIndex( index );

                    if ( fieldIndex.isHashed() ) {
                        this.hashKey.setValue( index,
                                               value );
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        }

        for ( ObjectSinkNode sink = this.hashableSinks.getFirst(); sink != null; sink = sink.getNextObjectSinkNode() ) {
            final AlphaNode alphaNode = (AlphaNode) sink;
            final AlphaNodeFieldConstraint fieldConstraint = alphaNode.getConstraint();
            final LiteralConstraint literalConstraint = (LiteralConstraint) fieldConstraint;
            final Evaluator evaluator = literalConstraint.getEvaluator();
            if ( evaluator.getOperator() == Operator.EQUAL && index == literalConstraint.getFieldExtractor().getIndex() ) {
                final FieldValue value = literalConstraint.getField();
                list.add( sink );
                this.hashedSinkMap.put( new HashKey( index,
                                                     value ),
                                        sink );
            }
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        for ( final java.util.Iterator iter = sinks.iterator(); iter.hasNext(); ) {
            final AlphaNode sink = (AlphaNode) iter.next();
            final AlphaNode alphaNode = sink;
            final AlphaNodeFieldConstraint fieldConstraint = alphaNode.getConstraint();
            final LiteralConstraint literalConstraint = (LiteralConstraint) fieldConstraint;
            final Evaluator evaluator = literalConstraint.getEvaluator();
            if ( evaluator.getOperator() == Operator.EQUAL && index == literalConstraint.getFieldExtractor().getIndex() ) {
                final FieldValue value = literalConstraint.getField();
                if ( this.hashableSinks == null ) {
                    this.hashableSinks = new ObjectSinkNodeList();
                }
                this.hashableSinks.add( sink );
                this.hashedSinkMap.remove( new HashKey( index,
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        final ClassFieldExtractor extractor = cache.getExtractor( Cheese.class,
                                                                  "type",
                                                                  getClass().getClassLoader() );

        final FieldValue field = FieldFactory.getFieldValue( "stilton" );
        final LiteralConstraint constraint = new LiteralConstraint( extractor,
                                                                    ValueType.STRING_TYPE.getEvaluator( Operator.EQUAL ),
                                                                    field );

        final List list = new ArrayList();
        final Cheese cheese1 = new Cheese( "cheddar",
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        final ClassFieldExtractor extractor = cache.getExtractor( Cheese.class,
                                                                  "type",
                                                                  getClass().getClassLoader() );

        final FieldValue field = FieldFactory.getFieldValue( "stilton" );
        final LiteralConstraint constraint = new LiteralConstraint( extractor,
                                                                    ValueType.STRING_TYPE.getEvaluator( Operator.EQUAL ),
                                                                    field );

        final List list = new ArrayList();
        final Cheese cheese1 = new Cheese( "stilton",
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                                                                  getClass().getClassLoader() );

        final FieldValue field = FieldFactory.getFieldValue( "cheddar" );

        final Evaluator evaluator = ValueType.OBJECT_TYPE.getEvaluator( Operator.EQUAL );
        final LiteralConstraint constraint = new LiteralConstraint( extractor,
                                                                    evaluator,
                                                                    field );

        // With Memory
        buildContext.setAlphaNodeMemoryAllowed( true );
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                                                                  getClass().getClassLoader() );

        final FieldValue field = FieldFactory.getFieldValue( "cheddar" );

        final Evaluator evaluator = ValueType.OBJECT_TYPE.getEvaluator( Operator.EQUAL );
        final LiteralConstraint constraint = new LiteralConstraint( extractor,
                                                                    evaluator,
                                                                    field );

        // With Memory
        buildContext.setAlphaNodeMemoryAllowed( false );
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