org.camunda.bpm.dmn.engine.impl.spi.hitpolicy

Interface DmnHitPolicyHandler

All Known Implementing Classes:

AbstractCollectNumberHitPolicyHandler, AnyHitPolicyHandler, CollectCountHitPolicyHandler, CollectHitPolicyHandler, CollectMaxHitPolicyHandler, CollectMinHitPolicyHandler, CollectSumHitPolicyHandler, FirstHitPolicyHandler, RuleOrderHitPolicyHandler, UniqueHitPolicyHandler

public interface DmnHitPolicyHandler

Handler for a DMN decision table hit policy.

Method Summary

Modifier and Type	Method and Description
DmnDecisionTableEvaluationEvent	apply(DmnDecisionTableEvaluationEvent decisionTableEvaluationEvent) Applies hit policy.
HitPolicyEntry	getHitPolicyEntry()

Method Detail

apply

DmnDecisionTableEvaluationEvent apply(DmnDecisionTableEvaluationEvent decisionTableEvaluationEvent)

Applies hit policy. Depending on the hit policy this can mean filtering and sorting of matching rules or aggregating results.

Parameters:

decisionTableEvaluationEvent - the evaluation event of the decision table

Returns:

the final evaluation result

Throws:

DmnEngineException - if the hit policy cannot be applied to the decision outputs

getHitPolicyEntry

HitPolicyEntry getHitPolicyEntry()

Returns:

the implemented hit policy and aggregator