org.apache.el.lang
Class ELSupport

java.lang.Object
  org.apache.el.lang.ELSupport

Direct Known Subclasses:

SimpleNode

public class ELSupport
extends java.lang.Object

A helper class that implements the EL Specification

Version:

$Change: 181177 $$DateTime: 2001/06/26 08:45:09 $$Author: remy.maucherat@jboss.com $

Author:

Jacob Hookom [jacob@hookom.net]

Constructor Summary

ELSupport()

Method Summary

static void	checkType(java.lang.Object obj, java.lang.Class<?> type)
static java.lang.Boolean	coerceToBoolean(java.lang.Object obj)
static java.lang.Character	coerceToCharacter(java.lang.Object obj)
static java.lang.Enum	coerceToEnum(java.lang.Object obj, java.lang.Class type)
protected static java.lang.Number	coerceToNumber(java.lang.Number number, java.lang.Class<?> type)
static java.lang.Number	coerceToNumber(java.lang.Object obj)
static java.lang.Number	coerceToNumber(java.lang.Object obj, java.lang.Class<?> type)
protected static java.lang.Number	coerceToNumber(java.lang.String val, java.lang.Class<?> type)
static java.lang.String	coerceToString(java.lang.Object obj)
static java.lang.Object	coerceToType(java.lang.Object obj, java.lang.Class<?> type)
static int	compare(java.lang.Object obj0, java.lang.Object obj1)
static boolean	containsNulls(java.lang.Object[] obj)
static boolean	equals(java.lang.Object obj0, java.lang.Object obj1)
static boolean	isBigDecimalOp(java.lang.Object obj0, java.lang.Object obj1)
static boolean	isBigIntegerOp(java.lang.Object obj0, java.lang.Object obj1)
static boolean	isDoubleOp(java.lang.Object obj0, java.lang.Object obj1)
static boolean	isDoubleStringOp(java.lang.Object obj0, java.lang.Object obj1)
static boolean	isLongOp(java.lang.Object obj0, java.lang.Object obj1)
static boolean	isStringFloat(java.lang.String str)
static void	throwUnhandled(java.lang.Object base, java.lang.Object property)
static java.lang.Number	toFloat(java.lang.String value)
static java.lang.Number	toNumber(java.lang.String value)

Methods inherited from class java.lang.Object

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

Constructor Detail

ELSupport

public ELSupport()

Method Detail

throwUnhandled

public static final void throwUnhandled(java.lang.Object base,
                                        java.lang.Object property)
                                 throws javax.el.ELException

Throws:

javax.el.ELException

compare

public static final int compare(java.lang.Object obj0,
                                java.lang.Object obj1)
                         throws javax.el.ELException

Parameters:

obj0 -

obj1 -

Returns:

Throws:

EvaluationException

javax.el.ELException

equals

public static final boolean equals(java.lang.Object obj0,
                                   java.lang.Object obj1)
                            throws javax.el.ELException

Parameters:

obj0 -

obj1 -

Returns:

Throws:

EvaluationException

javax.el.ELException

coerceToEnum

public static final java.lang.Enum coerceToEnum(java.lang.Object obj,
                                                java.lang.Class type)
                                         throws javax.el.ELException

Parameters:

obj -

type -

Returns:

Throws:

javax.el.ELException

coerceToBoolean

public static final java.lang.Boolean coerceToBoolean(java.lang.Object obj)
                                               throws javax.el.ELException

Parameters:

obj -

Returns:

Throws:

javax.el.ELException

coerceToCharacter

public static final java.lang.Character coerceToCharacter(java.lang.Object obj)
                                                   throws javax.el.ELException

Throws:

javax.el.ELException

coerceToNumber

public static final java.lang.Number coerceToNumber(java.lang.Object obj)

coerceToNumber

protected static final java.lang.Number coerceToNumber(java.lang.Number number,
                                                       java.lang.Class<?> type)
                                                throws javax.el.ELException

Throws:

javax.el.ELException

coerceToNumber

public static final java.lang.Number coerceToNumber(java.lang.Object obj,
                                                    java.lang.Class<?> type)
                                             throws javax.el.ELException

Throws:

javax.el.ELException

coerceToNumber

protected static final java.lang.Number coerceToNumber(java.lang.String val,
                                                       java.lang.Class<?> type)
                                                throws javax.el.ELException

Throws:

javax.el.ELException

coerceToString

public static final java.lang.String coerceToString(java.lang.Object obj)

Parameters:

obj -

Returns:

checkType

public static final void checkType(java.lang.Object obj,
                                   java.lang.Class<?> type)
                            throws javax.el.ELException

Throws:

javax.el.ELException

coerceToType

public static final java.lang.Object coerceToType(java.lang.Object obj,
                                                  java.lang.Class<?> type)
                                           throws javax.el.ELException

Throws:

javax.el.ELException

containsNulls

public static final boolean containsNulls(java.lang.Object[] obj)

Parameters:

obj -

Returns:

isBigDecimalOp

public static final boolean isBigDecimalOp(java.lang.Object obj0,
                                           java.lang.Object obj1)

isBigIntegerOp

public static final boolean isBigIntegerOp(java.lang.Object obj0,
                                           java.lang.Object obj1)

isDoubleOp

public static final boolean isDoubleOp(java.lang.Object obj0,
                                       java.lang.Object obj1)

isDoubleStringOp

public static final boolean isDoubleStringOp(java.lang.Object obj0,
                                             java.lang.Object obj1)

isLongOp

public static final boolean isLongOp(java.lang.Object obj0,
                                     java.lang.Object obj1)

isStringFloat

public static final boolean isStringFloat(java.lang.String str)

toFloat

public static final java.lang.Number toFloat(java.lang.String value)

toNumber

public static final java.lang.Number toNumber(java.lang.String value)