org.apache.commons.jexl.util

Class Coercion

java.lang.Object

org.apache.commons.jexl.util.Coercion

public class Coercion
extends Object

Coercion utilities for the JSTL EL-like coercion.

Since:

1.0

Author:

Geir Magnusson Jr.

Constructor Summary

Constructors

Constructor and Description
Coercion()

Method Summary

Modifier and Type	Method and Description
static Boolean	coerceBoolean(Object val) Coerce to a Boolean.
static Double	coerceDouble(Object val) Coerce to a Double.
static Integer	coerceInteger(Object val) Coerce to a Integer.
static Long	coerceLong(Object val) Coerce to a Long.
static boolean	isFloatingPoint(Object o) Is Object a floating point number.
static boolean	isNumberable(Object o) Is Object a whole number.

Methods inherited from class java.lang.Object

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

Constructor Detail

Coercion

public Coercion()

Method Detail

coerceBoolean

public static Boolean coerceBoolean(Object val)

Coerce to a Boolean.

Parameters:

val - Object to be coerced.

Returns:

The Boolean coerced value, or null if none possible.

coerceInteger

public static Integer coerceInteger(Object val)
                             throws Exception

Coerce to a Integer.

Parameters:

val - Object to be coerced.

Returns:

The Integer coerced value.

Throws:

Exception - If Integer coercion fails.

coerceLong

public static Long coerceLong(Object val)
                       throws Exception

Coerce to a Long.

Parameters:

val - Object to be coerced.

Returns:

The Long coerced value.

Throws:

Exception - If Long coercion fails.

coerceDouble

public static Double coerceDouble(Object val)
                           throws Exception

Coerce to a Double.

Parameters:

val - Object to be coerced.

Returns:

The Double coerced value.

Throws:

Exception - If Double coercion fails.

isFloatingPoint

public static boolean isFloatingPoint(Object o)

Is Object a floating point number.

Parameters:

o - Object to be analyzed.

Returns:

true if it is a Float or a Double.

isNumberable

public static boolean isNumberable(Object o)

Is Object a whole number.

Parameters:

o - Object to be analyzed.

Returns:

true if Integer, Long, Byte, Short or Character.