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Evaluator (Drools 4.0.0.11754MR2 API) - JBoss RULES 4.0.0.11754MR2 API 英文版文档

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org.drools.spi
Interface Evaluator

All Superinterfaces:

Serializable

All Known Implementing Classes:

BaseEvaluator, BaseMemberOfEvaluator, BaseNotMemberOfEvaluator

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public interface Evaluator
extends Serializable

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Method Summary
boolean	evaluate(Extractor leftExtractor, Object left, Extractor rightExtractor, Object right)
boolean	evaluate(Extractor extractor, Object object1, FieldValue value)           This method will extract the value from the object1 using the extractor and compare it with the object2.
boolean	evaluateCachedLeft(VariableRestriction.VariableContextEntry context, Object object1)
boolean	evaluateCachedRight(VariableRestriction.VariableContextEntry context, Object object2)
Operator	getOperator()
ValueType	getValueType()

 

Method Detail

getValueType

ValueType getValueType()

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getOperator

Operator getOperator()

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evaluate

boolean evaluate(Extractor extractor,
                 Object object1,
                 FieldValue value)

This method will extract the value from the object1 using the extractor and compare it with the object2.

Parameters:

extractor - The extractor used to get the source value from the object

object1 - The source object to evaluate

object2 - The actual value to compare to

Returns:

Returns true if evaluation is successfull. false otherwise.

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evaluate

boolean evaluate(Extractor leftExtractor,
                 Object left,
                 Extractor rightExtractor,
                 Object right)

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evaluateCachedLeft

boolean evaluateCachedLeft(VariableRestriction.VariableContextEntry context,
                           Object object1)

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evaluateCachedRight

boolean evaluateCachedRight(VariableRestriction.VariableContextEntry context,
                            Object object2)

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