org.flowable.dmn.engine.impl.el

Class DefaultExpressionManager

java.lang.Object

org.flowable.dmn.engine.impl.el.DefaultExpressionManager

All Implemented Interfaces:

ExpressionManager

public class DefaultExpressionManager
extends Object
implements ExpressionManager

Central manager for all expressions.

Process parsers will use this to build expression objects that are stored in the process definitions.

Then also this class is used as an entry point for runtime evaluation of the expressions.

Author:

Tom Baeyens, Dave Syer, Frederik Heremans

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 FlowableElContext	createElContext(Map<String,Object> variables)
protected ELResolver	createElResolver(Map<String,Object> variables)
Expression	createExpression(String expression)
Map<Object,Object>	getBeans()
ELContext	getElContext(Map<String,Object> variables)
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

setExpressionFactory

public void setExpressionFactory(ExpressionFactory expressionFactory)

getElContext

public ELContext getElContext(Map<String,Object> variables)

Specified by:

getElContext in interface ExpressionManager

createElContext

protected FlowableElContext createElContext(Map<String,Object> variables)

createElResolver

protected ELResolver createElResolver(Map<String,Object> variables)

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