Package org.camunda.bpm.dmn.engine.impl.evaluation

Class DecisionTableEvaluationHandler

java.lang.Object

org.camunda.bpm.dmn.engine.impl.evaluation.DecisionTableEvaluationHandler

All Implemented Interfaces:

DmnDecisionLogicEvaluationHandler

public class DecisionTableEvaluationHandler
extends Object
implements DmnDecisionLogicEvaluationHandler

Field Summary

Fields

Modifier and Type	Field	Description
protected List<DmnDecisionTableEvaluationListener>	evaluationListeners
protected ExpressionEvaluationHandler	expressionEvaluationHandler
protected FeelEngine	feelEngine
protected String	inputEntryExpressionLanguage
protected String	inputExpressionExpressionLanguage
protected String	outputEntryExpressionLanguage

Constructor Summary

Constructors

Constructor	Description
DecisionTableEvaluationHandler(DefaultDmnEngineConfiguration configuration)

Method Summary

Modifier and Type	Method	Description
protected long	calculateExecutedDecisionElements(DmnDecisionTableImpl decisionTable)
DmnDecisionLogicEvaluationEvent	evaluate(DmnDecision decision, VariableContext variableContext)	Evaluate a decision with the given VariableContext.
protected void	evaluateDecisionTable(DmnDecisionTableImpl decisionTable, VariableContext variableContext, DmnDecisionTableEvaluationEventImpl evaluationResult)
protected Object	evaluateFeelSimpleUnaryTests(DmnDecisionTableInputImpl input, DmnExpressionImpl condition, VariableContext variableContext)
protected DmnEvaluatedInput	evaluateInput(DmnDecisionTableInputImpl input, VariableContext variableContext)
protected Object	evaluateInputEntry(DmnDecisionTableInputImpl input, DmnExpressionImpl condition, VariableContext variableContext)
protected Object	evaluateInputExpression(DmnExpressionImpl expression, VariableContext variableContext)
protected List<DmnDecisionTableRuleImpl>	evaluateInputForAvailableRules(int conditionIdx, DmnDecisionTableInputImpl input, List<DmnDecisionTableRuleImpl> availableRules, VariableContext variableContext)
protected DmnEvaluatedDecisionRule	evaluateMatchingRule(List<DmnDecisionTableOutputImpl> decisionTableOutputs, DmnDecisionTableRuleImpl matchingRule, VariableContext variableContext)
protected Map<String,DmnEvaluatedOutput>	evaluateOutputEntries(List<DmnDecisionTableOutputImpl> decisionTableOutputs, DmnDecisionTableRuleImpl matchingRule, VariableContext variableContext)
protected Object	evaluateOutputEntry(DmnExpressionImpl conclusion, VariableContext variableContext)
DmnDecisionResult	generateDecisionResult(DmnDecisionLogicEvaluationEvent event)	Generates the decision evaluation result of the given event.
protected VariableContext	getLocalVariableContext(DmnDecisionTableInputImpl input, DmnEvaluatedInput evaluatedInput, VariableContext variableContext)
protected boolean	isConditionApplicable(DmnDecisionTableInputImpl input, DmnExpressionImpl condition, VariableContext variableContext)
protected boolean	isNonEmptyExpression(DmnExpressionImpl expression)
protected void	setEvaluationOutput(DmnDecisionTableImpl decisionTable, List<DmnDecisionTableRuleImpl> matchingRules, VariableContext variableContext, DmnDecisionTableEvaluationEventImpl evaluationResult)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

expressionEvaluationHandler

protected final ExpressionEvaluationHandler expressionEvaluationHandler

feelEngine

protected final FeelEngine feelEngine

evaluationListeners

protected final List<DmnDecisionTableEvaluationListener> evaluationListeners

inputExpressionExpressionLanguage

protected final String inputExpressionExpressionLanguage

inputEntryExpressionLanguage

protected final String inputEntryExpressionLanguage

outputEntryExpressionLanguage

protected final String outputEntryExpressionLanguage

Constructor Detail

DecisionTableEvaluationHandler

public DecisionTableEvaluationHandler(DefaultDmnEngineConfiguration configuration)

Method Detail

evaluate

public DmnDecisionLogicEvaluationEvent evaluate(DmnDecision decision,
                                                VariableContext variableContext)

Description copied from interface: DmnDecisionLogicEvaluationHandler

Evaluate a decision with the given VariableContext.

Specified by:

evaluate in interface DmnDecisionLogicEvaluationHandler

Parameters:

decision - the decision to evaluate

variableContext - the available variable context

Returns:

the event which represents the evaluation

calculateExecutedDecisionElements

protected long calculateExecutedDecisionElements(DmnDecisionTableImpl decisionTable)

evaluateDecisionTable

protected void evaluateDecisionTable(DmnDecisionTableImpl decisionTable,
                                     VariableContext variableContext,
                                     DmnDecisionTableEvaluationEventImpl evaluationResult)

evaluateInput

protected DmnEvaluatedInput evaluateInput(DmnDecisionTableInputImpl input,
                                          VariableContext variableContext)

evaluateInputForAvailableRules

protected List<DmnDecisionTableRuleImpl> evaluateInputForAvailableRules(int conditionIdx,
                                                                        DmnDecisionTableInputImpl input,
                                                                        List<DmnDecisionTableRuleImpl> availableRules,
                                                                        VariableContext variableContext)

isConditionApplicable

protected boolean isConditionApplicable(DmnDecisionTableInputImpl input,
                                        DmnExpressionImpl condition,
                                        VariableContext variableContext)

setEvaluationOutput

protected void setEvaluationOutput(DmnDecisionTableImpl decisionTable,
                                   List<DmnDecisionTableRuleImpl> matchingRules,
                                   VariableContext variableContext,
                                   DmnDecisionTableEvaluationEventImpl evaluationResult)

evaluateMatchingRule

protected DmnEvaluatedDecisionRule evaluateMatchingRule(List<DmnDecisionTableOutputImpl> decisionTableOutputs,
                                                        DmnDecisionTableRuleImpl matchingRule,
                                                        VariableContext variableContext)

getLocalVariableContext

protected VariableContext getLocalVariableContext(DmnDecisionTableInputImpl input,
                                                  DmnEvaluatedInput evaluatedInput,
                                                  VariableContext variableContext)

isNonEmptyExpression

protected boolean isNonEmptyExpression(DmnExpressionImpl expression)

evaluateInputExpression

protected Object evaluateInputExpression(DmnExpressionImpl expression,
                                         VariableContext variableContext)

evaluateInputEntry

protected Object evaluateInputEntry(DmnDecisionTableInputImpl input,
                                    DmnExpressionImpl condition,
                                    VariableContext variableContext)

evaluateOutputEntries

protected Map<String,DmnEvaluatedOutput> evaluateOutputEntries(List<DmnDecisionTableOutputImpl> decisionTableOutputs,
                                                                     DmnDecisionTableRuleImpl matchingRule,
                                                                     VariableContext variableContext)

evaluateOutputEntry

protected Object evaluateOutputEntry(DmnExpressionImpl conclusion,
                                     VariableContext variableContext)

evaluateFeelSimpleUnaryTests

protected Object evaluateFeelSimpleUnaryTests(DmnDecisionTableInputImpl input,
                                              DmnExpressionImpl condition,
                                              VariableContext variableContext)

generateDecisionResult

public DmnDecisionResult generateDecisionResult(DmnDecisionLogicEvaluationEvent event)

Description copied from interface: DmnDecisionLogicEvaluationHandler

Generates the decision evaluation result of the given event.

Specified by:

generateDecisionResult in interface DmnDecisionLogicEvaluationHandler

Parameters:

event - which represents the evaluation

Returns:

the result of the decision evaluation