Package org.drools.core.rule

Examples of org.drools.core.rule.IndexableConstraint

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            private int determineTypeWithEqualityPriority(short nodeType, BetaNodeFieldConstraint[] constraints) {
                int indexedConstraintPos = 0;
                for (int i = 0; i < constraints.length; i++) {
                    if (constraints[i] instanceof IndexableConstraint) {
                        IndexableConstraint indexableConstraint = (IndexableConstraint) constraints[i];
                        ConstraintType type = indexableConstraint.getConstraintType();
                        if (type == ConstraintType.EQUAL) {
                            constraintType = type;
                            return i;
                        } else if (constraintType == ConstraintType.UNKNOWN && type.isIndexableForNode(nodeType)) {
                            constraintType = type;
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        if ( sink.getType() ==  NodeTypeEnums.AlphaNode ) {
            final AlphaNode alphaNode = (AlphaNode) sink;
            final AlphaNodeFieldConstraint fieldConstraint = alphaNode.getConstraint();

            if ( fieldConstraint instanceof IndexableConstraint) {
                final IndexableConstraint indexableConstraint = (IndexableConstraint) fieldConstraint;

                if ( indexableConstraint.isIndexable(NodeTypeEnums.AlphaNode) && indexableConstraint.getField() != null &&
                        indexableConstraint.getFieldExtractor().getValueType() != ValueType.OBJECT_TYPE &&
                        // our current implementation does not support hashing of deeply nested properties
                        !( indexableConstraint.getFieldExtractor() instanceof MVELObjectClassFieldReader )) {
                    final InternalReadAccessor readAccessor = indexableConstraint.getFieldExtractor();
                    final int index = readAccessor.getIndex();
                    final FieldIndex fieldIndex = registerFieldIndex( index,
                                                                      readAccessor );

                    if ( fieldIndex.getCount() >= this.alphaNodeHashingThreshold && this.alphaNodeHashingThreshold != 0 ) {
                        if ( !fieldIndex.isHashed() ) {
                            hashSinks( fieldIndex );
                        }
                        final FieldValue value = indexableConstraint.getField();
                        // no need to check, we know  the sink  does not exist
                        this.hashedSinkMap.put( new HashKey( index,
                                                             value,
                                                             fieldIndex.getFieldExtractor() ),
                                                alphaNode,
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        if ( sink.getType() ==  NodeTypeEnums.AlphaNode ) {
            final AlphaNode alphaNode = (AlphaNode) sink;
            final AlphaNodeFieldConstraint fieldConstraint = alphaNode.getConstraint();

            if ( fieldConstraint instanceof IndexableConstraint ) {
                final IndexableConstraint indexableConstraint = (IndexableConstraint) fieldConstraint;
                final FieldValue value = indexableConstraint.getField();

                if ( indexableConstraint.isIndexable(NodeTypeEnums.AlphaNode) && indexableConstraint.getField() != null &&
                        indexableConstraint.getFieldExtractor().getValueType() != ValueType.OBJECT_TYPE &&
                        // our current implementation does not support hashing of deeply nested properties
                        !( indexableConstraint.getFieldExtractor() instanceof MVELObjectClassFieldReader )) {
                    final InternalReadAccessor fieldAccessor = indexableConstraint.getFieldExtractor();
                    final int index = fieldAccessor.getIndex();
                    final FieldIndex fieldIndex = unregisterFieldIndex( index );

                    if ( fieldIndex.isHashed() ) {
                        HashKey hashKey = new HashKey( index,
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        ObjectSinkNode currentSink = this.hashableSinks.getFirst();

        while ( currentSink != null ) {
            final AlphaNode alphaNode = (AlphaNode) currentSink;
            final AlphaNodeFieldConstraint fieldConstraint = alphaNode.getConstraint();
            final IndexableConstraint indexableConstraint = (IndexableConstraint)  fieldConstraint;

            // position to the next sink now because alphaNode may be removed if the index is equal. If we were to do this
            // afterwards, currentSink.nextNode would be null
            currentSink = currentSink.getNextObjectSinkNode();

            // only alpha nodes that have an Operator.EQUAL are in hashableSinks, so only check if it is
            // the right field index
            if ( index == indexableConstraint.getFieldExtractor().getIndex() ) {
                final FieldValue value = indexableConstraint.getField();
                this.hashedSinkMap.put( new HashKey( index,
                                                     value,
                                                     fieldReader ),
                                        alphaNode );
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        final Iterator iter = this.hashedSinkMap.newIterator();
        ObjectHashMap.ObjectEntry entry = (ObjectHashMap.ObjectEntry) iter.next();

        while ( entry != null ) {
            final AlphaNode alphaNode = (AlphaNode) entry.getValue();
            final IndexableConstraint indexableConstraint = (IndexableConstraint) alphaNode.getConstraint();

            // only alpha nodes that have an Operator.EQUAL are in sinks, so only check if it is
            // the right field index
            if ( index == indexableConstraint.getFieldExtractor().getIndex() ) {
                final FieldValue value = indexableConstraint.getField();
                if ( this.hashableSinks == null ) {
                    this.hashableSinks = new ObjectSinkNodeList();
                }
                this.hashableSinks.add( alphaNode );
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        assertEquals(1, pattern.getConstraints().size());
        Constraint constraint = pattern.getConstraints().get(0);
        GroupElement exists = (GroupElement) lhs.getChildren().get(2);
        pattern = (org.drools.core.rule.Pattern) exists.getChildren().get(0);
        assertEquals(3, pattern.getConstraints().size());
        IndexableConstraint vconstraint = (IndexableConstraint) pattern.getConstraints().get(1);
        assertEquals(Column.class, vconstraint.getFieldIndex().getExtractor().getExtractToClass());
        assertEquals("column1", vconstraint.getRequiredDeclarations()[0].getIdentifier());
        pattern = (org.drools.core.rule.Pattern) lhs.getChildren().get(3);
        assertEquals(1, pattern.getConstraints().size());
        constraint = pattern.getConstraints().get(0);
        exists = (GroupElement) lhs.getChildren().get(4);
        pattern = (org.drools.core.rule.Pattern) exists.getChildren().get(0);
        assertEquals(3, pattern.getConstraints().size());
        vconstraint = (IndexableConstraint) pattern.getConstraints().get(1);
        assertEquals(Column.class, vconstraint.getFieldIndex().getExtractor().getExtractToClass());
        assertEquals("column2", vconstraint.getRequiredDeclarations()[0].getIdentifier());
        pattern = (org.drools.core.rule.Pattern) lhs.getChildren().get(5);
        assertEquals(1, pattern.getConstraints().size());
        constraint = pattern.getConstraints().get(0);
        exists = (GroupElement) lhs.getChildren().get(6);
        pattern = (org.drools.core.rule.Pattern) exists.getChildren().get(0);
        assertEquals(3, pattern.getConstraints().size());
        vconstraint = (IndexableConstraint) pattern.getConstraints().get(1);
        assertEquals(Column.class, vconstraint.getFieldIndex().getExtractor().getExtractToClass());
        assertEquals("column3", vconstraint.getRequiredDeclarations()[0].getIdentifier());
    }
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        if ( sink.getType() ==  NodeTypeEnums.AlphaNode ) {
            final AlphaNode alphaNode = (AlphaNode) sink;
            final AlphaNodeFieldConstraint fieldConstraint = alphaNode.getConstraint();

            if ( fieldConstraint instanceof IndexableConstraint) {
                final IndexableConstraint indexableConstraint = (IndexableConstraint) fieldConstraint;

                if ( indexableConstraint.isIndexable(NodeTypeEnums.AlphaNode) && indexableConstraint.getField() != null &&
                        indexableConstraint.getFieldExtractor().getValueType() != ValueType.OBJECT_TYPE &&
                        // our current implementation does not support hashing of deeply nested properties
                        !( indexableConstraint.getFieldExtractor() instanceof MVELObjectClassFieldReader )) {
                    final InternalReadAccessor readAccessor = indexableConstraint.getFieldExtractor();
                    final int index = readAccessor.getIndex();
                    final FieldIndex fieldIndex = registerFieldIndex( index,
                                                                      readAccessor );

                    if ( fieldIndex.getCount() >= this.alphaNodeHashingThreshold && this.alphaNodeHashingThreshold != 0 ) {
                        if ( !fieldIndex.isHashed() ) {
                            hashSinks( fieldIndex );
                        }
                        final FieldValue value = indexableConstraint.getField();
                        // no need to check, we know  the sink  does not exist
                        this.hashedSinkMap.put( new HashKey( index,
                                                             value,
                                                             fieldIndex.getFieldExtractor() ),
                                                alphaNode,
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        if ( sink.getType() ==  NodeTypeEnums.AlphaNode ) {
            final AlphaNode alphaNode = (AlphaNode) sink;
            final AlphaNodeFieldConstraint fieldConstraint = alphaNode.getConstraint();

            if ( fieldConstraint instanceof IndexableConstraint ) {
                final IndexableConstraint indexableConstraint = (IndexableConstraint) fieldConstraint;
                final FieldValue value = indexableConstraint.getField();

                if ( indexableConstraint.isIndexable(NodeTypeEnums.AlphaNode) && indexableConstraint.getField() != null &&
                        indexableConstraint.getFieldExtractor().getValueType() != ValueType.OBJECT_TYPE &&
                        // our current implementation does not support hashing of deeply nested properties
                        !( indexableConstraint.getFieldExtractor() instanceof MVELObjectClassFieldReader )) {
                    final InternalReadAccessor fieldAccessor = indexableConstraint.getFieldExtractor();
                    final int index = fieldAccessor.getIndex();
                    final FieldIndex fieldIndex = unregisterFieldIndex( index );

                    if ( fieldIndex.isHashed() ) {
                        HashKey hashKey = new HashKey( index,
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        ObjectSinkNode currentSink = this.hashableSinks.getFirst();

        while ( currentSink != null ) {
            final AlphaNode alphaNode = (AlphaNode) currentSink;
            final AlphaNodeFieldConstraint fieldConstraint = alphaNode.getConstraint();
            final IndexableConstraint indexableConstraint = (IndexableConstraint)  fieldConstraint;

            // position to the next sink now because alphaNode may be removed if the index is equal. If we were to do this
            // afterwards, currentSink.nextNode would be null
            currentSink = currentSink.getNextObjectSinkNode();

            // only alpha nodes that have an Operator.EQUAL are in hashableSinks, so only check if it is
            // the right field index
            if ( index == indexableConstraint.getFieldExtractor().getIndex() ) {
                final FieldValue value = indexableConstraint.getField();
                this.hashedSinkMap.put( new HashKey( index,
                                                     value,
                                                     fieldReader ),
                                        alphaNode );
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        final Iterator iter = this.hashedSinkMap.newIterator();
        ObjectHashMap.ObjectEntry entry = (ObjectHashMap.ObjectEntry) iter.next();

        while ( entry != null ) {
            final AlphaNode alphaNode = (AlphaNode) entry.getValue();
            final IndexableConstraint indexableConstraint = (IndexableConstraint) alphaNode.getConstraint();

            // only alpha nodes that have an Operator.EQUAL are in sinks, so only check if it is
            // the right field index
            if ( index == indexableConstraint.getFieldExtractor().getIndex() ) {
                final FieldValue value = indexableConstraint.getField();
                if ( this.hashableSinks == null ) {
                    this.hashableSinks = new ObjectSinkNodeList();
                }
                this.hashableSinks.add( alphaNode );
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Related Classes of org.drools.core.rule.IndexableConstraint

  • org.drools.core.reteoo.CompositeObjectSinkAdapter
  • org.drools.core.util.index.IndexUtil$Factory$IndexSpec
  • org.drools.template.parser.DefaultTemplateRuleBaseTest
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