org.apache.myfaces.el
Class ELParserHelper

java.lang.Object
  org.apache.myfaces.el.ELParserHelper

public class ELParserHelper
extends Object

Utility class to implement support functionality to "morph" JSP EL into JSF EL

Version:

$Revision: 673803 $ $Date: 2008-07-03 16:07:46 -0500 (Thu, 03 Jul 2008) $

Author:

Anton Koinov (latest modification by $Author: skitching $)

Nested Class Summary

static class	ELParserHelper.MyArraySuffix Override ArraySuffix.evaluate() to use our property resolver
static class	ELParserHelper.MyPropertySuffix

Field Summary

static org.apache.commons.el.Logger

LOGGER

Method Summary

static Object	parseExpression(String expressionString) Gets the parsed form of the given expression string.
static Integer	toIndex(Object base, Object index) Coerces index to Integer for array types, or returns null for non-array types.

Methods inherited from class java.lang.Object

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

Field Detail

LOGGER

public static final org.apache.commons.el.Logger LOGGER

Method Detail

parseExpression

public static Object parseExpression(String expressionString)

Gets the parsed form of the given expression string. Returns either an Expression or ExpressionString.

toIndex

public static Integer toIndex(Object base,
                              Object index)
                       throws javax.servlet.jsp.el.ELException,
                              EvaluationException

Coerces index to Integer for array types, or returns null for non-array types.

Parameters:

base - Object for the base

index - Object for the index

Returns:

Integer a valid Integer index, or null if not an array type

Throws:

javax.servlet.jsp.el.ELException - if exception occurs trying to coerce to Integer

EvaluationException - if base is array type but cannot convert index to Integer