Package org.drools.compiler.rule.builder

Class EvaluatorWrapper

  • All Implemented Interfaces:
    Serializable, org.drools.core.spi.Evaluator, org.kie.api.runtime.rule.Evaluator
    public class EvaluatorWrapper
extends Object
implements org.drools.core.spi.Evaluator
    An EvaluatorWrapper is used when executing MVEL expressions that have operator calls rewritten as: operator.evaluate( leftArg, rightArg )
    See Also:
    Serialized Form

    • Constructor Summary

      Constructors 
      Constructor Description
      EvaluatorWrapper​(org.drools.core.spi.Evaluator evaluator, org.drools.core.rule.Declaration leftBinding, org.drools.core.rule.Declaration rightBinding)  

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean evaluate​(org.drools.core.common.ReteEvaluator reteEvaluator, Object left, Object right)
      This method is called when operators are rewritten as function calls.
      boolean evaluate​(org.drools.core.common.ReteEvaluator reteEvaluator, org.drools.core.spi.InternalReadAccessor extractor, org.drools.core.common.InternalFactHandle factHandle, org.drools.core.spi.FieldValue value)  
      boolean evaluate​(org.drools.core.common.ReteEvaluator reteEvaluator, org.drools.core.spi.InternalReadAccessor leftExtractor, org.drools.core.common.InternalFactHandle left, org.drools.core.spi.InternalReadAccessor rightExtractor, org.drools.core.common.InternalFactHandle right)  
      String getBindingName()  
      org.drools.core.base.ValueType getCoercedValueType()  
      static org.drools.core.base.extractors.SelfReferenceClassFieldReader getExtractor()  
      org.drools.core.time.Interval getInterval()  
      org.kie.api.runtime.rule.Operator getOperator()  
      org.drools.core.base.ValueType getValueType()  
      boolean isTemporal()  
      void loadHandles​(org.drools.core.common.InternalFactHandle[] handles, org.drools.core.common.InternalFactHandle rightHandle)  
      void setBindingName​(String bindingName)  
      String toString()  

    • Constructor Detail

      • EvaluatorWrapper

        public EvaluatorWrapper​(org.drools.core.spi.Evaluator evaluator,
                        org.drools.core.rule.Declaration leftBinding,
                        org.drools.core.rule.Declaration rightBinding)

    • Method Detail

      • evaluate

        public boolean evaluate​(org.drools.core.common.ReteEvaluator reteEvaluator,
                        Object left,
                        Object right)
        This method is called when operators are rewritten as function calls. For instance, x after y Is rewritten as after.evaluate( _workingMemory_, x, y )
        Returns:

      • getValueType

        public org.drools.core.base.ValueType getValueType()
        Specified by:
        getValueType in interface org.drools.core.spi.Evaluator
        Returns:
        See Also:
        Evaluator.getValueType()

      • getOperator

        public org.kie.api.runtime.rule.Operator getOperator()
        Specified by:
        getOperator in interface org.drools.core.spi.Evaluator
        Specified by:
        getOperator in interface org.kie.api.runtime.rule.Evaluator
        Returns:
        See Also:
        Evaluator.getOperator()

      • getCoercedValueType

        public org.drools.core.base.ValueType getCoercedValueType()
        Specified by:
        getCoercedValueType in interface org.drools.core.spi.Evaluator
        Returns:
        See Also:
        Evaluator.getCoercedValueType()

      • evaluate

        public boolean evaluate​(org.drools.core.common.ReteEvaluator reteEvaluator,
                        org.drools.core.spi.InternalReadAccessor extractor,
                        org.drools.core.common.InternalFactHandle factHandle,
                        org.drools.core.spi.FieldValue value)
        Specified by:
        evaluate in interface org.drools.core.spi.Evaluator

      • evaluate

        public boolean evaluate​(org.drools.core.common.ReteEvaluator reteEvaluator,
                        org.drools.core.spi.InternalReadAccessor leftExtractor,
                        org.drools.core.common.InternalFactHandle left,
                        org.drools.core.spi.InternalReadAccessor rightExtractor,
                        org.drools.core.common.InternalFactHandle right)
        Specified by:
        evaluate in interface org.drools.core.spi.Evaluator

      • isTemporal

        public boolean isTemporal()
        Specified by:
        isTemporal in interface org.drools.core.spi.Evaluator
        Specified by:
        isTemporal in interface org.kie.api.runtime.rule.Evaluator
        Returns:
        See Also:
        Evaluator.isTemporal()

      • getInterval

        public org.drools.core.time.Interval getInterval()
        Specified by:
        getInterval in interface org.drools.core.spi.Evaluator
        Returns:
        See Also:
        Evaluator.getInterval()

      • loadHandles

        public void loadHandles​(org.drools.core.common.InternalFactHandle[] handles,
                        org.drools.core.common.InternalFactHandle rightHandle)

      • getExtractor

        public static org.drools.core.base.extractors.SelfReferenceClassFieldReader getExtractor()

      • getBindingName

        public String getBindingName()

      • setBindingName

        public void setBindingName​(String bindingName)