Package org.drools.scenariosimulation.backend.expression

Class DMNFeelExpressionEvaluator

java.lang.Object

org.drools.scenariosimulation.backend.expression.AbstractExpressionEvaluator

org.drools.scenariosimulation.backend.expression.DMNFeelExpressionEvaluator

All Implemented Interfaces:

ExpressionEvaluator

public class DMNFeelExpressionEvaluator
extends AbstractExpressionEvaluator

Constructor Summary

Constructors

Constructor	Description
DMNFeelExpressionEvaluator(ClassLoader classLoader)

Method Summary

Modifier and Type	Method	Description
protected Object	createObject(String className, List<String> genericClasses)
protected <T> T	executeAndVerifyErrors(Function<org.kie.dmn.feel.FEEL,T> command)	Common internal method that execute the command and manage error
protected Object	extractFieldValue(Object result, String fieldName)
String	fromObjectToExpression(Object value)
protected Map.Entry<String,List<String>>	getFieldClassNameAndGenerics(Object element, String fieldName, String className, List<String> genericClasses)	This is not used for DMN
protected Object	internalLiteralEvaluation(String raw, String className)
protected boolean	internalUnaryEvaluation(String rawExpression, Object resultValue, Class<?> resultClass, boolean skipEmptyString)
protected boolean	isStructuredInput(String className)	In DMN only Lists are structured input while Maps are context so "plain" FEEL expressions
protected boolean	isStructuredResult(Class<?> resultClass)	In DMN only Lists are structured result while Maps are context so "plain" FEEL expressions
protected org.kie.dmn.feel.FEEL	newFeelEvaluator(AtomicReference<org.kie.dmn.api.feel.runtime.events.FEELEvent> errorHolder)
protected void	setField(Object toReturn, String fieldName, Object fieldValue)

Methods inherited from class org.drools.scenariosimulation.backend.expression.AbstractExpressionEvaluator

convertResult, createAndFillList, createAndFillObject, evaluateLiteralExpression, evaluateUnaryExpression, getSimpleTypeNodeTextValue, isEmptyText, isListEmpty, isNodeEmpty, isObjectEmpty, isSimpleTypeNode, verifyList, verifyObject, verifyResult

Methods inherited from class java.lang.Object

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

Constructor Detail

DMNFeelExpressionEvaluator

public DMNFeelExpressionEvaluator(ClassLoader classLoader)

Method Detail

fromObjectToExpression

public String fromObjectToExpression(Object value)

newFeelEvaluator

protected org.kie.dmn.feel.FEEL newFeelEvaluator(AtomicReference<org.kie.dmn.api.feel.runtime.events.FEELEvent> errorHolder)

internalLiteralEvaluation

protected Object internalLiteralEvaluation(String raw,
                                           String className)

Specified by:

internalLiteralEvaluation in class AbstractExpressionEvaluator

internalUnaryEvaluation

protected boolean internalUnaryEvaluation(String rawExpression,
                                          Object resultValue,
                                          Class<?> resultClass,
                                          boolean skipEmptyString)

Specified by:

internalUnaryEvaluation in class AbstractExpressionEvaluator

executeAndVerifyErrors

protected <T> T executeAndVerifyErrors(Function<org.kie.dmn.feel.FEEL,T> command)

Common internal method that execute the command and manage error

Type Parameters:

T -

Parameters:

command -

Returns:

extractFieldValue

protected Object extractFieldValue(Object result,
                                   String fieldName)

Specified by:

extractFieldValue in class AbstractExpressionEvaluator

createObject

protected Object createObject(String className,
                              List<String> genericClasses)

Specified by:

createObject in class AbstractExpressionEvaluator

setField

protected void setField(Object toReturn,
                        String fieldName,
                        Object fieldValue)

Specified by:

setField in class AbstractExpressionEvaluator

isStructuredResult

protected boolean isStructuredResult(Class<?> resultClass)

In DMN only Lists are structured result while Maps are context so "plain" FEEL expressions

Overrides:

isStructuredResult in class AbstractExpressionEvaluator

Parameters:

resultClass -

Returns:

isStructuredInput

protected boolean isStructuredInput(String className)

In DMN only Lists are structured input while Maps are context so "plain" FEEL expressions

Overrides:

isStructuredInput in class AbstractExpressionEvaluator

Parameters:

className -

Returns:

getFieldClassNameAndGenerics

protected Map.Entry<String,List<String>> getFieldClassNameAndGenerics(Object element,
                                                                            String fieldName,
                                                                            String className,
                                                                            List<String> genericClasses)

This is not used for DMN

Specified by:

getFieldClassNameAndGenerics in class AbstractExpressionEvaluator

Parameters:

element -

fieldName -

className -

genericClasses -

Returns: