Package org.drools.spi

Examples of org.drools.spi.Evaluator

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            Target right = rightDecl != null && rightDecl.isPatternDeclaration() ? Target.HANDLE : Target.FACT;

            op.setLeftIsHandle( left == Target.HANDLE );
            op.setRightIsHandle( right == Target.HANDLE );

            Evaluator evaluator = getEvaluator( context,
                                                predicateDescr,
                                                ValueType.OBJECT_TYPE,
                                                op.getOperator(),
                                                false, // the rewrite takes care of negation
                                                op.getParametersText(),
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            return null;
        }

        Target right = getRightTarget( extractor );
        Target left = Target.FACT;
        final Evaluator evaluator = getEvaluator( context,
                                                  literalRestrictionDescr,
                                                  vtype,
                                                  literalRestrictionDescr.getEvaluator(),
                                                  literalRestrictionDescr.isNegated(),
                                                  literalRestrictionDescr.getParameterText(),
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                                     usedIdentifiers,
                                     factDeclarations );

        Target right = getRightTarget( extractor );
        Target left = Target.FACT;
        final Evaluator evaluator = getEvaluator( context,
                                                  returnValueRestrictionDescr,
                                                  extractor.getValueType(),
                                                  returnValueRestrictionDescr.getEvaluator(),
                                                  returnValueRestrictionDescr.isNegated(),
                                                  returnValueRestrictionDescr.getParameterText(),
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                                                          null,
                                                          "Unable to determine the Evaluator for ID '" + evaluatorString + "'" ) );
            return null;
        }

        final Evaluator evaluator = def.getEvaluator( valueType,
                                                      evaluatorString,
                                                      isNegated,
                                                      parameters,
                                                      left,
                                                      right );
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            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 ) {
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            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,
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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 );
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        final InternalReadAccessor extractor = new MockExtractor();
        for ( int i = 0; i < data.length; i++ ) {
            final Object[] row = data[i];
            boolean isNegated = ((String) row[1]).startsWith( "not " );
            String evaluatorStr = isNegated ? ((String) row[1]).substring( 4 ) : (String) row[1];
            final Evaluator evaluator = (Evaluator) registry.getEvaluatorDefinition( evaluatorStr ).getEvaluator( valueType,
                                                                                                      evaluatorStr,
                                                                                                      isNegated,
                                                                                                      null );
            checkEvaluatorMethodWithFieldValue( valueType,
                                                extractor,
                                                row,
                                                evaluator );
            checkEvaluatorMethodCachedRight( valueType,
                                             extractor,
                                             row,
                                             evaluator );
            checkEvaluatorMethodCachedLeft( valueType,
                                            extractor,
                                            row,
                                            evaluator );
            checkEvaluatorMethodWith2Extractors( valueType,
                                                 extractor,
                                                 row,
                                                 evaluator );

            assertEquals( valueType,
                          evaluator.getValueType() );

        }
    }
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                                                                  "type",
                                                                  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
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Related Classes of org.drools.spi.Evaluator

  • org.drools.base.BaseEvaluator
  • org.drools.base.EvaluatorFactoryTest
  • org.drools.base.evaluators.AfterEvaluatorDefinition
  • org.drools.base.TemporalEvaluatorFactoryTest
  • org.drools.common.BaseBetaConstraintsTest
  • org.drools.event.AgendaEventSupportTest
  • org.drools.event.knowledgebase.KnowledgeBaseEventSupportTest
  • org.drools.event.rule.AgendaEventSupportTest
  • org.drools.event.RuleBaseEventListenerTest
  • org.drools.event.RuleBaseEventSupportTest
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