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 = getConstraintBuilder( context ).getEvaluator(
                    context,
                    predicateDescr,
                    ValueType.OBJECT_TYPE,
                    op.getOperator(),
                    false, // the rewrite takes care of negation
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                                              Declaration requiredDeclaration,
                                              RelationalExprDescr relDescr) {
        if (!isMvelOperator(operatorDescr.getOperator())) {
            EvaluatorDefinition.Target right = getRightTarget( extractor );
            EvaluatorDefinition.Target left = (requiredDeclaration.isPatternDeclaration() && !(Date.class.isAssignableFrom( requiredDeclaration.getExtractor().getExtractToClass() ) || Number.class.isAssignableFrom( requiredDeclaration.getExtractor().getExtractToClass() ))) ? EvaluatorDefinition.Target.HANDLE : EvaluatorDefinition.Target.FACT;
            final Evaluator evaluator = getEvaluator( context,
                                                      relDescr,
                                                      extractor.getValueType(),
                                                      operatorDescr.getOperator(),
                                                      relDescr.isNegated(),
                                                      relDescr.getParametersText(),
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                                             String operator,
                                             String rightValue,
                                             InternalReadAccessor extractor,
                                             LiteralRestrictionDescr restrictionDescr) {
        if (!isMvelOperator(operator)) {
            Evaluator evaluator = buildLiteralEvaluator(context, extractor, restrictionDescr, vtype);
            return new EvaluatorConstraint(field, evaluator, extractor);
        }

        String mvelExpr = normalizeMVELLiteralExpression(vtype, field, expression, leftValue, operator, rightValue, restrictionDescr);
        IndexUtil.ConstraintType constraintType = IndexUtil.ConstraintType.decode(operator);
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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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                evaluatorStr = evaluatorStr.split( "\\[" )[0];
                parameters = parameters.split( "\\]" )[0];
            }
            EvaluatorDefinition evalDef = registry.getEvaluatorDefinition( evaluatorStr );
            assertNotNull( evalDef );
            final Evaluator evaluator = evalDef.getEvaluator( valueType,
                                                              evaluatorStr,
                                                              isNegated,
                                                              parameters );
            // System.out.println(evaluator);

            checkEvaluatorMethodWith2Extractors( valueType,
                                                 extractor,
                                                 row,
                                                 evaluator );
            checkEvaluatorMethodCachedRight( valueType,
                                             extractor,
                                             row,
                                             evaluator );
            checkEvaluatorMethodCachedLeft( valueType,
                                            extractor,
                                            row,
                                            evaluator );
            checkEvaluatorMethodWithFieldValue( valueType,
                                                extractor,
                                                row,
                                                evaluator );

            assertEquals( valueType,
                          evaluator.getValueType() );

        }
    }
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                                                            "name",
                                                            DroolsQuery.class.getClassLoader() );

        FieldValue field = FieldFactory.getFieldValue( "query-1" );

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

        AlphaNode alphaNode = new AlphaNode( this.buildContext.getNextId(),
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                                                            "type",
                                                            getClass().getClassLoader() );

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

        final Evaluator evaluator = equals.getEvaluator( ValueType.OBJECT_TYPE,
                                                         Operator.EQUAL );
        final LiteralConstraint constraint = new LiteralConstraint( extractor,
                                                                    evaluator,
                                                                    field );
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                                                                "type",
                                                                getClass().getClassLoader() );

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

        final Evaluator evaluator = equals.getEvaluator( ValueType.OBJECT_TYPE,
                                                         Operator.EQUAL );
        final LiteralConstraint constraint = new LiteralConstraint( extractor,
                                                                    evaluator,
                                                                    field );
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                                                                "type",
                                                                getClass().getClassLoader() );

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

        final Evaluator evaluator = equals.getEvaluator( ValueType.OBJECT_TYPE,
                                                         Operator.EQUAL );
        final LiteralConstraint constraint = new LiteralConstraint( extractor,
                                                                    evaluator,
                                                                    field );
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                                                                                       "type",
                                                                                       getClass().getClassLoader() );

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

        final Evaluator evaluator = registry.getEvaluator( ValueType.STRING_TYPE,
                                                           Operator.EQUAL,
                                                           null );

        final LiteralConstraint constraint = new LiteralConstraint( extractor,
                                                                    evaluator,
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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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