org.apache.taglibs.standard.util

Class ExpressionUtil

java.lang.Object

org.apache.taglibs.standard.util.ExpressionUtil

public class ExpressionUtil
extends Object

Helper functions for working with EL expressions.

Constructor Summary

Constructors

Constructor and Description
ExpressionUtil()

Method Summary

Methods

Modifier and Type	Method and Description
static javax.el.ValueExpression	createValueExpression(javax.servlet.jsp.PageContext pageContext, String expression, Class<?> expectedType) Create a value expression.
static javax.el.ExpressionFactory	getExpressionFactory(javax.servlet.jsp.PageContext pageContext) Return the JSP's ExpressionFactory.

Methods inherited from class java.lang.Object

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

Constructor Detail

ExpressionUtil

public ExpressionUtil()

Method Detail

createValueExpression

public static javax.el.ValueExpression createValueExpression(javax.servlet.jsp.PageContext pageContext,
                                             String expression,
                                             Class<?> expectedType)

Create a value expression.

Parameters:

pageContext - the context in which the expression will be parsed

expression - the expression

expectedType - the expected type of result

Returns:

a parsed expression

getExpressionFactory

public static javax.el.ExpressionFactory getExpressionFactory(javax.servlet.jsp.PageContext pageContext)

Return the JSP's ExpressionFactory.

Parameters:

pageContext - the context for the JSP

Returns:

the ExpressionFactory to use for EL expressions in that JSP