org.apache.tiles.el

Class ELAttributeEvaluator

java.lang.Object

org.apache.tiles.evaluator.AbstractAttributeEvaluator

org.apache.tiles.el.ELAttributeEvaluator

All Implemented Interfaces:

AttributeEvaluator

public class ELAttributeEvaluator
extends AbstractAttributeEvaluator

Evaluates string expression with typical EL syntax.
You can use normal EL syntax, knowing that the root objects are Request, ApplicationContext and beans contained in request, session and application scope.

Since:

2.2.1

Version:

$Rev: 891884 $ $Date: 2009-12-18 07:43:12 +1100 (Fri, 18 Dec 2009) $

Field Summary

Fields

Modifier and Type	Field and Description
static String	EXPRESSION_FACTORY_FACTORY_INIT_PARAM Initialization parameter to decide the implementation of ExpressionFactoryFactory.
protected javax.el.ExpressionFactory	expressionFactory The EL expression factory.
protected javax.el.ELResolver	resolver The EL resolver to use.

Constructor Summary

Constructors

Constructor and Description
ELAttributeEvaluator() Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
Object	evaluate(String expression, org.apache.tiles.request.Request request) Evaluates an expression.
void	setExpressionFactory(javax.el.ExpressionFactory expressionFactory) Sets the expression factory to use.
void	setResolver(javax.el.ELResolver resolver) Sets the EL resolver to use.

Methods inherited from class org.apache.tiles.evaluator.AbstractAttributeEvaluator

evaluate

Methods inherited from class java.lang.Object

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

Field Detail

EXPRESSION_FACTORY_FACTORY_INIT_PARAM

public static final String EXPRESSION_FACTORY_FACTORY_INIT_PARAM

Initialization parameter to decide the implementation of ExpressionFactoryFactory.

Since:

2.2.1

See Also:

Constant Field Values

expressionFactory

protected javax.el.ExpressionFactory expressionFactory

The EL expression factory.

Since:

2.2.1

resolver

protected javax.el.ELResolver resolver

The EL resolver to use.

Since:

2.2.1

Constructor Detail

ELAttributeEvaluator

public ELAttributeEvaluator()

Constructor.

Since:

2.2.1

Method Detail

setExpressionFactory

public void setExpressionFactory(javax.el.ExpressionFactory expressionFactory)

Sets the expression factory to use.

Parameters:

expressionFactory - The expression factory.

Since:

2.2.1

setResolver

public void setResolver(javax.el.ELResolver resolver)

Sets the EL resolver to use.

Parameters:

resolver - The EL resolver.

Since:

2.2.1

evaluate

public Object evaluate(String expression,
              org.apache.tiles.request.Request request)

Evaluates an expression.

Parameters:

expression - The expression to evaluate.

request - The request object.

Returns:

The evaluated object.