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To: commons-user@jakarta.apache.org
From: Geoffrey De Smet <ge0ffrey.spam@gmail.com>
Subject: Re: [lang] null-safe compareTo method
Date: Tue, 21 Feb 2006 09:26:09 +0100
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Thanks, but:

equals doesn't compare: it only returns true or false, not -1, 0 and 1.
I use it in a custom Comporator to sort a List with Collections.sort(),
The CompareToBuilder is a bit overkill: I just need to compare 2 
strings, null safe.
Not that it's hard or a lot to write :) just wanted to say I think it's 
missing from ObjectUtils.

Alfredo Ledezma Melendez wrote:
> 
> Specifically for strings use this:
> 
> http://jakarta.apache.org/commons/lang/api/org/apache/commons/lang/StringUtils.h
> tml#equals(java.lang.String,%20java.lang.String)
> 
> For more generic handling of comparison checking:
> 
> http://jakarta.apache.org/commons/lang/api/org/apache/commons/lang/builder/Compa
> reToBuilder.html
> 
> Regards,
> ____________________________________________
> Alfredo Ledezma Mel�ndez.
> Gerencia de Sistemas CRM
> Consultor Externo de Sistemas de Atenci�n a Clientes
> RadioMovil DIPSA, S. A. de C. V.
> Ej�rcito Nacional No. 488, Col. Chapultepec Morales,
> C.P. 11570 M�xico D.F.
> 
> Aquel que construye la casa de la felicidad futura edifica la c�rcel del
> presente.
> Octavio Paz
> 
> 
> 
> 
>> -----Original Message-----
>> From: news [mailto:news@sea.gmane.org]On Behalf Of Geoffrey De Smet
>> Sent: Monday, February 20, 2006 5:05 AM
>> To: commons-user@jakarta.apache.org
>> Subject: [lang] null-safe compareTo method
>>
>>
>> Is there a null-safe compare method?
>> I need to compare 2 strings:
>> - both null => equal
>> - one null => that one is smaller
>> - neither null => a.compareTo(b)
>>
>> Else I 'd propose something like:
>> ObjectUtils.compare(Comparable a, Comparable b)
>>
>> --
>> With kind regards,
>> Geoffrey De Smet
>>
>>
>> ---------------------------------------------------------------------
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> 
> 
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-- 
With kind regards,
Geoffrey De Smet


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