com.abstractics.utils.converter
Class ConverterNumber

java.lang.Object
  com.abstractics.utils.converter.ConverterNumber

All Implemented Interfaces:

ObjectConverter

public class ConverterNumber

extends java.lang.Object

implements ObjectConverter

Converter that can handle converting an object into the java.lang.Number subclass specified in the constructor. Conversion is handled by calling the toString() method on the object and then using that String to attempt to construct the java.lang.Number subclass specified in the constructor.
This converter currently supports the following Number subclasses: BigDecimal, BigInteger, Double, Float, Integer, Long, Short, and Byte.

Version:

$Id: ConverterNumber.java,v 1.2 2006/03/15 05:37:30 andyman99 Exp $

Author:

Andrew Lawrence, Copyright 2006 Abstractics, L.L.C., Licensed under the Apache License, Version 2.0

Constructor Summary

ConverterNumber(java.lang.Class numberSubclass)

Method Summary

java.lang.Object	convert(java.lang.Object obj, java.util.Locale locale) Since all of the subclasses of java.lang.Number have a constructor that takes a single String, we use that to do the conversion.
java.lang.Class	getClassToConvertTo()

Methods inherited from class java.lang.Object

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

Constructor Detail

ConverterNumber

public ConverterNumber(java.lang.Class numberSubclass)

Parameters:

numberSubclass - Expected subclass of Number. Only BigDecimal, BigInteger, Double, Float, Integer, Long, Short, and Byte are supported

Throws:

java.lang.IllegalArgumentException - Thrown if numberClass is null or is not one of the listed Number subclasses.

Method Detail

convert

public java.lang.Object convert(java.lang.Object obj,
                                java.util.Locale locale)
                         throws ObjectConverterException

Since all of the subclasses of java.lang.Number have a constructor that takes a single String, we use that to do the conversion.

Specified by:

convert in interface ObjectConverter

Parameters:

obj - Object to be converted. Guaranteed not to be null and not to already be an instanceof the Class returned by ObjectConverter.getClassToConvertTo(). Those conditions are checked before the converter is even called.

locale - The locale that is asking for the conversion. This may or may not be necessary for the conversion.

Returns:

The converted object - should NEVER return anything that is not an instanceof the class returned by ObjectConverter.getClassToConvertTo()

Throws:

ObjectConverterException - Throw this exception if the string cannot be converted, for whatever reason.

See Also:

com.abstractics.xmlpanel.utils.stringtoobject.ObjectConverter#convert(Object)

getClassToConvertTo

public java.lang.Class getClassToConvertTo()

Specified by:

getClassToConvertTo in interface ObjectConverter

Returns:

The class that this converter converts to