Package org.camunda.bpm.dmn.engine

Interface DmnEngine

All Known Implementing Classes:

DefaultDmnEngine

public interface DmnEngine

A DMN engine which can parse DMN decision models and evaluate decisions.

A new DMN engine can be build with a DMN engine configuration (see DmnEngineConfiguration.buildEngine()).

Method Summary

Modifier and Type	Method	Description
DmnDecisionResult	evaluateDecision(String decisionKey, InputStream inputStream, Map<String,Object> variables)	Evaluates the decision with the given key in a DMN decision model.
DmnDecisionResult	evaluateDecision(String decisionKey, InputStream inputStream, VariableContext variableContext)	Evaluates the decision with the given key in a DMN decision model.
DmnDecisionResult	evaluateDecision(String decisionKey, DmnModelInstance dmnModelInstance, Map<String,Object> variables)	Evaluates the decision with the given key in a DMN decision model.
DmnDecisionResult	evaluateDecision(String decisionKey, DmnModelInstance dmnModelInstance, VariableContext variableContext)	Evaluates the decision with the given key in a DMN decision model.
DmnDecisionResult	evaluateDecision(DmnDecision decision, Map<String,Object> variables)	Evaluates a decision.
DmnDecisionResult	evaluateDecision(DmnDecision decision, VariableContext variableContext)	Evaluates a decision.
DmnDecisionTableResult	evaluateDecisionTable(String decisionKey, InputStream inputStream, Map<String,Object> variables)	Evaluates the decision with the given key in a DMN decision model.
DmnDecisionTableResult	evaluateDecisionTable(String decisionKey, InputStream inputStream, VariableContext variableContext)	Evaluates the decision with the given key in a DMN decision model.
DmnDecisionTableResult	evaluateDecisionTable(String decisionKey, DmnModelInstance dmnModelInstance, Map<String,Object> variables)	Evaluates the decision with the given key in a DMN decision model.
DmnDecisionTableResult	evaluateDecisionTable(String decisionKey, DmnModelInstance dmnModelInstance, VariableContext variableContext)	Evaluates the decision with the given key in a DMN decision model.
DmnDecisionTableResult	evaluateDecisionTable(DmnDecision decision, Map<String,Object> variables)	Evaluates a decision which is implemented as decision table.
DmnDecisionTableResult	evaluateDecisionTable(DmnDecision decision, VariableContext variableContext)	Evaluates a decision which is implemented as decision table.
DmnEngineConfiguration	getConfiguration()	The configuration of this engine.
DmnDecision	parseDecision(String decisionKey, InputStream inputStream)	Parse the decision with the given key in a DMN decision model.
DmnDecision	parseDecision(String decisionKey, DmnModelInstance dmnModelInstance)	Parse the decision with the given key in a DMN decision model.
DmnDecisionRequirementsGraph	parseDecisionRequirementsGraph(InputStream inputStream)	Parse the decision requirements graph in a DMN decision model.
DmnDecisionRequirementsGraph	parseDecisionRequirementsGraph(DmnModelInstance dmnModelInstance)	Parse the decision requirements graph in a DMN decision model.
List<DmnDecision>	parseDecisions(InputStream inputStream)	Parse all decisions in a DMN decision model.
List<DmnDecision>	parseDecisions(DmnModelInstance dmnModelInstance)	Parse all decisions in a DMN decision model.

Method Details

getConfiguration

DmnEngineConfiguration getConfiguration()

The configuration of this engine.

Returns:

the DMN engine configuration

parseDecisions

List<DmnDecision> parseDecisions(InputStream inputStream)

Parse all decisions in a DMN decision model.

Parameters:

inputStream - the InputStream of the DMN file

Returns:

a list of the DmnDecisions of the DMN file

Throws:

DmnEngineException - if an error occurs during the parsing of the decision model

parseDecisions

List<DmnDecision> parseDecisions(DmnModelInstance dmnModelInstance)

Parse all decisions in a DMN decision model.

Parameters:

dmnModelInstance - the DmnModelInstance of the DMN decision model

Returns:

a list of the DmnDecisions of the DMN file

Throws:

DmnEngineException - if an error occurs during the parsing of the decision model

parseDecision

DmnDecision parseDecision(String decisionKey,
 InputStream inputStream)

Parse the decision with the given key in a DMN decision model. The key is the id attribute of the decision in the DMN XML file.

Parameters:

decisionKey - the key of the decision to parse

inputStream - the InputStream of the DMN file

Returns:

the first DmnDecision of the DMN file

Throws:

DmnEngineException - if an error occurs during the parsing of the decision model

parseDecision

DmnDecision parseDecision(String decisionKey,
 DmnModelInstance dmnModelInstance)

Parse the decision with the given key in a DMN decision model. The key is the id attribute of the decision in the DMN XML file.

Parameters:

decisionKey - the key of the decision to parse

dmnModelInstance - the DmnModelInstance of the DMN decision model

Returns:

the first DmnDecision of the DMN file

Throws:

DmnEngineException - if an error occurs during the parsing of the decision model

parseDecisionRequirementsGraph

DmnDecisionRequirementsGraph parseDecisionRequirementsGraph(InputStream inputStream)

Parse the decision requirements graph in a DMN decision model.

Parameters:

inputStream - the InputStream of the DMN file

Returns:

a list of the DmnDecisions of the DMN file

Throws:

DmnEngineException - if an error occurs during the parsing of the decision model

parseDecisionRequirementsGraph

DmnDecisionRequirementsGraph parseDecisionRequirementsGraph(DmnModelInstance dmnModelInstance)

Parse the decision requirements graph in a DMN decision model.

Parameters:

dmnModelInstance - the DmnModelInstance of the DMN decision model

Returns:

a list of the DmnDecisions of the DMN file

Throws:

DmnEngineException - if an error occurs during the parsing of the decision model

evaluateDecisionTable

DmnDecisionTableResult evaluateDecisionTable(DmnDecision decision,
 Map<String,Object> variables)

Evaluates a decision which is implemented as decision table.

Parameters:

decision - the DmnDecision to evaluate

variables - the variables which are available during the evaluation of expressions in the decision table

Returns:

the DmnDecisionTableResult of this evaluation

Throws:

DmnEngineException - if the decision is not implemented as decision table (see DmnDecision.isDecisionTable()

DmnEngineException - if an error occurs during the evaluation

See Also:

• evaluateDecision(DmnDecision, Map)

evaluateDecisionTable

DmnDecisionTableResult evaluateDecisionTable(DmnDecision decision,
 VariableContext variableContext)

Evaluates a decision which is implemented as decision table.

Parameters:

decision - the DmnDecision to evaluate

variableContext - the variables context which is available during the evaluation of expressions in the decision table

Returns:

the DmnDecisionTableResult of this evaluation

Throws:

DmnEngineException - if the decision is not implemented as decision table (see DmnDecision.isDecisionTable()

DmnEngineException - if an error occurs during the evaluation

See Also:

• evaluateDecision(DmnDecision, VariableContext)

evaluateDecisionTable

DmnDecisionTableResult evaluateDecisionTable(String decisionKey,
 InputStream inputStream,
 Map<String,Object> variables)

Evaluates the decision with the given key in a DMN decision model. The key is the id attribute of the decision in the DMN XML file.

Parameters:

decisionKey - the key of the decision to evaluated

inputStream - the InputStream of the DMN file

variables - the variables which are available during the evaluation of expressions in the decision table

Returns:

the DmnDecisionTableResult of this evaluation

Throws:

DmnEngineException - if no decision is found with the given key

DmnEngineException - if the decision is not implemented as decision table

DmnEngineException - if an error occurs during the evaluation

See Also:

• evaluateDecision(String, InputStream, Map)

evaluateDecisionTable

DmnDecisionTableResult evaluateDecisionTable(String decisionKey,
 InputStream inputStream,
 VariableContext variableContext)

Evaluates the decision with the given key in a DMN decision model. The key is the id attribute of the decision in the DMN XML file.

Parameters:

decisionKey - the key of the decision to evaluated

inputStream - the InputStream of the DMN file

variableContext - the variables context which is available during the evaluation of expressions in the decision table

Returns:

the DmnDecisionTableResult of this evaluation

Throws:

DmnEngineException - if no decision is found with the given key

DmnEngineException - if the decision is not implemented as decision table

DmnEngineException - if an error occurs during the evaluation

See Also:

• evaluateDecision(String, InputStream, VariableContext)

evaluateDecisionTable

DmnDecisionTableResult evaluateDecisionTable(String decisionKey,
 DmnModelInstance dmnModelInstance,
 Map<String,Object> variables)

Evaluates the decision with the given key in a DMN decision model. The key is the id attribute of the decision in the DMN XML file.

Parameters:

decisionKey - the key of the decision to evaluated

dmnModelInstance - the DmnModelInstance of the DMN decision model

variables - the variables which are available during the evaluation of expressions in the decision table

Returns:

the DmnDecisionTableResult of this evaluation

Throws:

DmnEngineException - if no decision is found with the given key

DmnEngineException - if the decision is not implemented as decision table

DmnEngineException - if an error occurs during the evaluation

See Also:

• evaluateDecision(String, DmnModelInstance, Map)

evaluateDecisionTable

DmnDecisionTableResult evaluateDecisionTable(String decisionKey,
 DmnModelInstance dmnModelInstance,
 VariableContext variableContext)

Evaluates the decision with the given key in a DMN decision model. The key is the id attribute of the decision in the DMN XML file.

Parameters:

decisionKey - the key of the decision to evaluated

dmnModelInstance - the DmnModelInstance of the DMN decision model

variableContext - the variables context which is available during the evaluation of expressions in the decision table

Returns:

the DmnDecisionTableResult of this evaluation

Throws:

DmnEngineException - if an error occurs during the parsing of the decision model

DmnEngineException - if no decision is found with the given key

DmnEngineException - if the decision is not implemented as decision table

DmnEngineException - if an error occurs during the evaluation

See Also:

• evaluateDecision(String, DmnModelInstance, VariableContext)

evaluateDecision

DmnDecisionResult evaluateDecision(DmnDecision decision,
 Map<String,Object> variables)

Evaluates a decision. The decision can be implemented as any kind of supported decision logic (e.g., decision table, literal expression).

Parameters:

decision - the DmnDecision to evaluate

variables - the variables which are available during the evaluation of expressions in the decision

Returns:

the DmnDecisionResult of this evaluation

Throws:

DmnEngineException - if the decision logic is not supported

DmnEngineException - if an error occurs during the evaluation

evaluateDecision

DmnDecisionResult evaluateDecision(DmnDecision decision,
 VariableContext variableContext)

Evaluates a decision. The decision can be implemented as any kind of supported decision logic (e.g., decision table, literal expression).

Parameters:

decision - the DmnDecision to evaluate

variableContext - the variables context which is available during the evaluation of expressions in the table

Returns:

the DmnDecisionResult of this evaluation

Throws:

DmnEngineException - if the decision logic is not supported

DmnEngineException - if an error occurs during the evaluation

evaluateDecision

DmnDecisionResult evaluateDecision(String decisionKey,
 InputStream inputStream,
 Map<String,Object> variables)

Evaluates the decision with the given key in a DMN decision model. The key is the id attribute of the decision in the DMN XML file. The decision can be implemented as any kind of supported decision logic (e.g., decision table, literal expression).

Parameters:

decisionKey - the key of the decision to evaluated

inputStream - the InputStream of the DMN file

variables - the variables which are available during the evaluation of expressions in the decision

Returns:

the DmnDecisionResult of this evaluation

Throws:

DmnEngineException - if no decision is found with the given key

DmnEngineException - if the decision logic is not supported

DmnEngineException - if an error occurs during the evaluation

evaluateDecision

DmnDecisionResult evaluateDecision(String decisionKey,
 InputStream inputStream,
 VariableContext variableContext)

Evaluates the decision with the given key in a DMN decision model. The key is the id attribute of the decision in the DMN XML file. The decision can be implemented as any kind of supported decision logic (e.g., decision table, literal expression).

Parameters:

decisionKey - the key of the decision to evaluated

inputStream - the InputStream of the DMN file

variableContext - the variables context which is available during the evaluation of expressions in the decision

Returns:

the DmnDecisionResult of this evaluation

Throws:

DmnEngineException - if no decision is found with the given key

DmnEngineException - if the decision logic is not supported

DmnEngineException - if an error occurs during the evaluation

evaluateDecision

DmnDecisionResult evaluateDecision(String decisionKey,
 DmnModelInstance dmnModelInstance,
 Map<String,Object> variables)

Evaluates the decision with the given key in a DMN decision model. The key is the id attribute of the decision in the DMN XML file. The decision can be implemented as any kind of supported decision logic (e.g., decision table, literal expression).

Parameters:

decisionKey - the key of the decision to evaluated

dmnModelInstance - the DmnModelInstance of the DMN decision model

variables - the variables which are available during the evaluation of expressions in the decision

Returns:

the DmnDecisionResult of this evaluation

Throws:

DmnEngineException - if no decision is found with the given key

DmnEngineException - if the decision logic is not supported

DmnEngineException - if an error occurs during the evaluation

evaluateDecision

DmnDecisionResult evaluateDecision(String decisionKey,
 DmnModelInstance dmnModelInstance,
 VariableContext variableContext)

Evaluates the decision with the given key in a DMN decision model. The key is the id attribute of the decision in the DMN XML file. The decision can be implemented as any kind of supported decision logic (e.g., decision table, literal expression).

Parameters:

decisionKey - the key of the decision to evaluated

dmnModelInstance - the DmnModelInstance of the DMN decision model

variableContext - the variables context which is available during the evaluation of expressions in the decision

Returns:

the DmnDecisionResult of this evaluation

Throws:

DmnEngineException - if an error occurs during the parsing of the decision model

DmnEngineException - if no decision is found with the given key

DmnEngineException - if the decision logic is not supported

DmnEngineException - if an error occurs during the evaluation