Package org.drools.core.spi

Examples of org.drools.core.spi.Evaluator

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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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            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);
            if (evaluator != null && evaluator.isTemporal()) {
                try {
                    field = context.getCompilerFactory().getFieldFactory().getFieldValue(field.getValue(),
                                                                                         ValueType.DATE_TYPE,
                                                                                         context.getKnowledgeBuilder().getDateFormats());
                } catch (Exception e) {
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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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            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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            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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            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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                                  final Target right) {
        if ( this.cache == Collections.EMPTY_MAP ) {
            this.cache = new HashMap<String, Evaluator>();
        }
        String key = left+":"+right+":"+isNegated + ":" + parameterText;
        Evaluator eval = this.cache.get( key );
        if ( eval == null ) {
            Long[] params = parser.parse( parameterText );
            eval = new AfterEvaluator( type,
                                       isNegated,
                                       params,
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        }
        if ( object == null || !(object instanceof BaseEvaluator) ) {
            return false;
        }

        final Evaluator other = (Evaluator) object;
        return this.getOperator() == other.getOperator() && this.getValueType() == other.getValueType();
    }
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Related Classes of org.drools.core.spi.Evaluator

  • org.drools.compiler.rule.builder.MVELConstraintBuilder
  • org.drools.compiler.rule.builder.PatternBuilder
  • org.drools.core.base.BaseEvaluator
  • org.drools.core.base.evaluators.AfterEvaluatorDefinition
  • org.drools.core.base.TemporalEvaluatorFactoryTest
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