Package org.camunda.bpm.dmn.feel.impl.juel

Class FeelEngineImpl

java.lang.Object

org.camunda.bpm.dmn.feel.impl.juel.FeelEngineImpl

All Implemented Interfaces:

FeelEngine

public class FeelEngineImpl
extends Object
implements FeelEngine

Field Summary

Fields

Modifier and Type	Field	Description
protected ElContextFactory	elContextFactory
protected ExpressionFactory	expressionFactory
static final FeelEngineLogger	LOG
protected FeelToJuelTransform	transform
protected Cache<TransformExpressionCacheKey,String>	transformExpressionCache

Constructor Summary

Constructors

Constructor	Description
FeelEngineImpl(FeelToJuelTransform transform, ExpressionFactory expressionFactory, ElContextFactory elContextFactory, Cache<TransformExpressionCacheKey,String> transformExpressionCache)

Method Summary

Modifier and Type	Method	Description
protected ELContext	createContext(VariableContext variableContext)
<T> T	evaluateSimpleExpression(String simpleExpression, VariableContext variableContext)	Evaluate a FEEL simple expression
boolean	evaluateSimpleUnaryTests(String simpleUnaryTests, String inputName, VariableContext variableContext)	Evaluate a FEEL simple unary tests expression
protected ValueExpression	transformSimpleUnaryTests(String simpleUnaryTests, String inputName, ELContext elContext)
protected String	transformToJuelExpression(String simpleUnaryTests, String inputName)

Methods inherited from class java.lang.Object

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

Field Details

LOG

public static final FeelEngineLogger LOG

transform

protected FeelToJuelTransform transform

expressionFactory

protected ExpressionFactory expressionFactory

elContextFactory

protected ElContextFactory elContextFactory

transformExpressionCache

protected Cache<TransformExpressionCacheKey,String> transformExpressionCache

Constructor Details

FeelEngineImpl

public FeelEngineImpl(FeelToJuelTransform transform,
 ExpressionFactory expressionFactory,
 ElContextFactory elContextFactory,
 Cache<TransformExpressionCacheKey,String> transformExpressionCache)

Method Details

evaluateSimpleExpression

public <T> T evaluateSimpleExpression(String simpleExpression,
 VariableContext variableContext)

Description copied from interface: FeelEngine

Evaluate a FEEL simple expression

Specified by:

evaluateSimpleExpression in interface FeelEngine

Type Parameters:

T - the expected return type

Parameters:

simpleExpression - the simple expression to evaluate

variableContext - the variable context which are available

Returns:

the result of the simple expression

evaluateSimpleUnaryTests

public boolean evaluateSimpleUnaryTests(String simpleUnaryTests,
 String inputName,
 VariableContext variableContext)

Description copied from interface: FeelEngine

Evaluate a FEEL simple unary tests expression

Specified by:

evaluateSimpleUnaryTests in interface FeelEngine

Parameters:

simpleUnaryTests - the simple unary tests expression to evaluate

inputName - the name of the variable which is tested

variableContext - the variable context are available

Returns:

the result of the simple unary tests expression

createContext

protected ELContext createContext(VariableContext variableContext)

transformSimpleUnaryTests

protected ValueExpression transformSimpleUnaryTests(String simpleUnaryTests,
 String inputName,
 ELContext elContext)

transformToJuelExpression

protected String transformToJuelExpression(String simpleUnaryTests,
 String inputName)