net.sourceforge.stripes.validation.expression

Class Jsp20ExpressionExecutor

java.lang.Object

net.sourceforge.stripes.validation.expression.ExpressionExecutorSupport

net.sourceforge.stripes.validation.expression.Jsp20ExpressionExecutor

All Implemented Interfaces:

ExpressionExecutor

public class Jsp20ExpressionExecutor
extends ExpressionExecutorSupport

An implementation of ExpressionExecutor that uses the container's built in JSP2.0 EL implementation. This requires that the DispatcherServlet allocates a PageContext object earlier in the request cycle in order to gain access to the ExpressionEvaluator. This can cause problems in some containers.

Since:

Stripes 1.5

Author:

Tim Fennell

Nested Class Summary

Nested classes/interfaces inherited from class net.sourceforge.stripes.validation.expression.ExpressionExecutorSupport

ExpressionExecutorSupport.BeanVariableResolver

Field Summary

Fields inherited from interface net.sourceforge.stripes.validation.expression.ExpressionExecutor

ERROR_DEFAULT_SCOPE, ERROR_KEY, THIS

Constructor Summary

Constructors

Constructor and Description
Jsp20ExpressionExecutor()

Method Summary

Methods

Modifier and Type	Method and Description
protected javax.servlet.jsp.el.ExpressionEvaluator	getEvaluator() Attempts to get the PageContext object stashed away in the DispatcherHelper and use it to generate an ExpressionEvaluator.

Methods inherited from class net.sourceforge.stripes.validation.expression.ExpressionExecutorSupport

evaluate

Methods inherited from class java.lang.Object

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

Constructor Detail

Jsp20ExpressionExecutor

public Jsp20ExpressionExecutor()

Method Detail

getEvaluator

protected javax.servlet.jsp.el.ExpressionEvaluator getEvaluator()

Attempts to get the PageContext object stashed away in the DispatcherHelper and use it to generate an ExpressionEvaluator.

Specified by:

getEvaluator in class ExpressionExecutorSupport

Returns:

an ExpressionEvaluator if possible, or null otherwise