org.camunda.bpm.dmn.engine.impl

Class DefaultDmnDecisionContext

java.lang.Object

org.camunda.bpm.dmn.engine.impl.DefaultDmnDecisionContext

public class DefaultDmnDecisionContext
extends Object

Context which evaluates a decision on a given input

Field Summary

Fields

Modifier and Type	Field and Description
protected ElProvider	elProvider
protected List<DmnDecisionTableEvaluationListener>	evaluationListeners
protected FeelEngine	feelEngine
protected String	inputEntryExpressionLanguage
protected String	inputExpressionExpressionLanguage
protected static DmnEngineLogger	LOG
protected String	outputEntryExpressionLanguage
protected DmnScriptEngineResolver	scriptEngineResolver

Constructor Summary

Constructors

Constructor and Description
DefaultDmnDecisionContext(DefaultDmnEngineConfiguration configuration)

Method Summary

Methods

Modifier and Type	Method and Description
protected long	calculateExecutedDecisionElements(DmnDecisionTableImpl decisionTable)
DmnDecisionTableResult	evaluateDecisionTable(DmnDecisionTableImpl decisionTable, org.camunda.bpm.engine.variable.context.VariableContext variableContext) Evaluate a decision table with the given VariableContext
protected Object	evaluateExpression(String expressionLanguage, DmnExpressionImpl expression, org.camunda.bpm.engine.variable.context.VariableContext variableContext)
protected Object	evaluateFeelSimpleExpression(DmnExpressionImpl expression, org.camunda.bpm.engine.variable.context.VariableContext variableContext)
protected Object	evaluateFeelSimpleUnaryTests(DmnDecisionTableInputImpl input, DmnExpressionImpl condition, org.camunda.bpm.engine.variable.context.VariableContext variableContext)
protected DmnEvaluatedInput	evaluateInput(DmnDecisionTableInputImpl input, org.camunda.bpm.engine.variable.context.VariableContext variableContext)
protected Object	evaluateInputExpression(DmnExpressionImpl expression, org.camunda.bpm.engine.variable.context.VariableContext variableContext)
protected List<DmnDecisionTableRuleImpl>	evaluateInputForAvailableRules(int conditionIdx, DmnDecisionTableInputImpl input, List<DmnDecisionTableRuleImpl> availableRules, org.camunda.bpm.engine.variable.context.VariableContext variableContext)
protected DmnEvaluatedDecisionRule	evaluateMatchingRule(List<DmnDecisionTableOutputImpl> decisionTableOutputs, DmnDecisionTableRuleImpl matchingRule, org.camunda.bpm.engine.variable.context.VariableContext variableContext)
protected Map<String,DmnEvaluatedOutput>	evaluateOutputEntries(List<DmnDecisionTableOutputImpl> decisionTableOutputs, DmnDecisionTableRuleImpl matchingRule, org.camunda.bpm.engine.variable.context.VariableContext variableContext)
protected Object	evaluateOutputEntry(DmnExpressionImpl conclusion, org.camunda.bpm.engine.variable.context.VariableContext variableContext)
protected DmnDecisionTableResult	generateDecisionTableResult(DmnDecisionTableEvaluationEvent evaluationResult)
protected DmnDecisionTableResult	generateDecisionTableResult(DmnDecisionTableImpl decisionTable, DmnDecisionTableEvaluationEventImpl evaluationResult)
protected String	getExpressionTextForLanguage(DmnExpressionImpl expression, String expressionLanguage)
protected ScriptEngine	getScriptEngineForName(String expressionLanguage)
protected boolean	isConditionApplicable(DmnDecisionTableInputImpl input, DmnExpressionImpl condition, org.camunda.bpm.engine.variable.context.VariableContext variableContext)
protected boolean	isElExpression(String expressionLanguage)
protected boolean	isFeelExpressionLanguage(String expressionLanguage)
protected boolean	isJuelExpression(String expressionLanguage)
protected boolean	isNonEmptyExpression(DmnExpressionImpl expression)
protected void	setEvaluationOutput(DmnDecisionTableImpl decisionTable, List<DmnDecisionTableRuleImpl> matchingRules, org.camunda.bpm.engine.variable.context.VariableContext variableContext, DmnDecisionTableEvaluationEventImpl evaluationResult)

Methods inherited from class java.lang.Object

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

Field Detail

LOG

protected static final DmnEngineLogger LOG

evaluationListeners

protected final List<DmnDecisionTableEvaluationListener> evaluationListeners

scriptEngineResolver

protected final DmnScriptEngineResolver scriptEngineResolver

elProvider

protected final ElProvider elProvider

feelEngine

protected final FeelEngine feelEngine

inputExpressionExpressionLanguage

protected final String inputExpressionExpressionLanguage

inputEntryExpressionLanguage

protected final String inputEntryExpressionLanguage

outputEntryExpressionLanguage

protected final String outputEntryExpressionLanguage

Constructor Detail

DefaultDmnDecisionContext

public DefaultDmnDecisionContext(DefaultDmnEngineConfiguration configuration)

Method Detail

evaluateDecisionTable

public DmnDecisionTableResult evaluateDecisionTable(DmnDecisionTableImpl decisionTable,
                                           org.camunda.bpm.engine.variable.context.VariableContext variableContext)

Evaluate a decision table with the given VariableContext

Parameters:

decisionTable - the decision table to evaluate

variableContext - the available variable context

Returns:

the result of the decision evaluation

evaluateInput

protected DmnEvaluatedInput evaluateInput(DmnDecisionTableInputImpl input,
                              org.camunda.bpm.engine.variable.context.VariableContext variableContext)

evaluateInputForAvailableRules

protected List<DmnDecisionTableRuleImpl> evaluateInputForAvailableRules(int conditionIdx,
                                                            DmnDecisionTableInputImpl input,
                                                            List<DmnDecisionTableRuleImpl> availableRules,
                                                            org.camunda.bpm.engine.variable.context.VariableContext variableContext)

isConditionApplicable

protected boolean isConditionApplicable(DmnDecisionTableInputImpl input,
                            DmnExpressionImpl condition,
                            org.camunda.bpm.engine.variable.context.VariableContext variableContext)

setEvaluationOutput

protected void setEvaluationOutput(DmnDecisionTableImpl decisionTable,
                       List<DmnDecisionTableRuleImpl> matchingRules,
                       org.camunda.bpm.engine.variable.context.VariableContext variableContext,
                       DmnDecisionTableEvaluationEventImpl evaluationResult)

evaluateMatchingRule

protected DmnEvaluatedDecisionRule evaluateMatchingRule(List<DmnDecisionTableOutputImpl> decisionTableOutputs,
                                            DmnDecisionTableRuleImpl matchingRule,
                                            org.camunda.bpm.engine.variable.context.VariableContext variableContext)

generateDecisionTableResult

protected DmnDecisionTableResult generateDecisionTableResult(DmnDecisionTableImpl decisionTable,
                                                 DmnDecisionTableEvaluationEventImpl evaluationResult)

generateDecisionTableResult

protected DmnDecisionTableResult generateDecisionTableResult(DmnDecisionTableEvaluationEvent evaluationResult)

calculateExecutedDecisionElements

protected long calculateExecutedDecisionElements(DmnDecisionTableImpl decisionTable)

evaluateInputExpression

protected Object evaluateInputExpression(DmnExpressionImpl expression,
                             org.camunda.bpm.engine.variable.context.VariableContext variableContext)

evaluateOutputEntries

protected Map<String,DmnEvaluatedOutput> evaluateOutputEntries(List<DmnDecisionTableOutputImpl> decisionTableOutputs,
                                                   DmnDecisionTableRuleImpl matchingRule,
                                                   org.camunda.bpm.engine.variable.context.VariableContext variableContext)

evaluateOutputEntry

protected Object evaluateOutputEntry(DmnExpressionImpl conclusion,
                         org.camunda.bpm.engine.variable.context.VariableContext variableContext)

evaluateFeelSimpleExpression

protected Object evaluateFeelSimpleExpression(DmnExpressionImpl expression,
                                  org.camunda.bpm.engine.variable.context.VariableContext variableContext)

evaluateFeelSimpleUnaryTests

protected Object evaluateFeelSimpleUnaryTests(DmnDecisionTableInputImpl input,
                                  DmnExpressionImpl condition,
                                  org.camunda.bpm.engine.variable.context.VariableContext variableContext)

evaluateExpression

protected Object evaluateExpression(String expressionLanguage,
                        DmnExpressionImpl expression,
                        org.camunda.bpm.engine.variable.context.VariableContext variableContext)

getExpressionTextForLanguage

protected String getExpressionTextForLanguage(DmnExpressionImpl expression,
                                  String expressionLanguage)

isJuelExpression

protected boolean isJuelExpression(String expressionLanguage)

getScriptEngineForName

protected ScriptEngine getScriptEngineForName(String expressionLanguage)

isElExpression

protected boolean isElExpression(String expressionLanguage)

isNonEmptyExpression

protected boolean isNonEmptyExpression(DmnExpressionImpl expression)

isFeelExpressionLanguage

protected boolean isFeelExpressionLanguage(String expressionLanguage)