If you retrieve the string using getModelObjectAsString() you will never
receive a null, because that method converts nulls to ""

SantiagoA wrote:
> 
> A null value won´t work for me, because I have to Map these values via
> Castor to XML and as result null values were deleted in Castor.
> At this point I need an empty String to make sure the value is mapped in
> Castor.
> 
> Thanks for the proposal anyway, 
> the solution above (Ernestos proposal) works fine for me!
> 
> 
> 
> jensiator wrote:
>> 
>> My experience is that null values a nice to use. What if you have a
>> optional email field? When the user starts to write something the email
>> validation kicks in. I think a lot of wickets validators uses Null in
>> that case. And I have used that i JSP/Struts programming to. I think its
>> better to handle the null values when you later use the model to do
>> something. 
>> 
>> Jens Alenius
>> 
>> 
>> 
>> 
> 
> 

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