org.flowable.engine.common.impl.el

Class DefaultExpressionManager

java.lang.Object

org.flowable.engine.common.impl.el.DefaultExpressionManager

All Implemented Interfaces:

ExpressionManager

public class DefaultExpressionManager
extends Object
implements ExpressionManager

Default ExpressionManager implementation that contains the logic for creating and resolving Expression instances.

Author:

Tom Baeyens, Dave Syer, Frederik Heremans, Joram Barrez

Field Summary

Fields

Modifier and Type	Field and Description
protected Map<Object,Object>	beans
protected ExpressionFactory	expressionFactory
protected List<FlowableFunctionDelegate>	functionDelegates
protected ELContext	parsingElContext

Constructor Summary

Constructors

Constructor and Description
DefaultExpressionManager()
DefaultExpressionManager(Map<Object,Object> beans)

Method Summary

Modifier and Type	Method and Description
protected void	configureResolvers(List<ELResolver> elResolvers)
protected ELResolver	createBeanElResolver()
protected ELResolver	createElResolver(VariableContainer variableContainer)
Expression	createExpression(String expression)
protected Expression	createJuelExpression(String expression, ValueExpression valueExpression)
protected ELResolver	createVariableElResolver(VariableContainer variableContainer)
Map<Object,Object>	getBeans()
ELContext	getElContext(VariableContainer variableContainer)
List<FlowableFunctionDelegate>	getFunctionDelegates()
void	setBeans(Map<Object,Object> beans)
void	setExpressionFactory(ExpressionFactory expressionFactory)
void	setFunctionDelegates(List<FlowableFunctionDelegate> functionDelegates)

Methods inherited from class java.lang.Object

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

Field Detail

expressionFactory

protected ExpressionFactory expressionFactory

functionDelegates

protected List<FlowableFunctionDelegate> functionDelegates

parsingElContext

protected ELContext parsingElContext

beans

protected Map<Object,Object> beans

Constructor Detail

DefaultExpressionManager

public DefaultExpressionManager()

DefaultExpressionManager

public DefaultExpressionManager(Map<Object,Object> beans)

Method Detail

createExpression

public Expression createExpression(String expression)

Specified by:

createExpression in interface ExpressionManager

createJuelExpression

protected Expression createJuelExpression(String expression,
                                          ValueExpression valueExpression)

setExpressionFactory

public void setExpressionFactory(ExpressionFactory expressionFactory)

getElContext

public ELContext getElContext(VariableContainer variableContainer)

Specified by:

getElContext in interface ExpressionManager

createElResolver

protected ELResolver createElResolver(VariableContainer variableContainer)

configureResolvers

protected void configureResolvers(List<ELResolver> elResolvers)

createVariableElResolver

protected ELResolver createVariableElResolver(VariableContainer variableContainer)

createBeanElResolver

protected ELResolver createBeanElResolver()

getBeans

public Map<Object,Object> getBeans()

Specified by:

getBeans in interface ExpressionManager

setBeans

public void setBeans(Map<Object,Object> beans)

Specified by:

setBeans in interface ExpressionManager

getFunctionDelegates

public List<FlowableFunctionDelegate> getFunctionDelegates()

Specified by:

getFunctionDelegates in interface ExpressionManager

setFunctionDelegates

public void setFunctionDelegates(List<FlowableFunctionDelegate> functionDelegates)

Specified by:

setFunctionDelegates in interface ExpressionManager