Is there already a solution to this, as I now have the very same problem (a
Double value that must be null if the value is empty and not 0 - but if
value is empty, an exception is thrown).
Btw, I just startet to use T5 and I'm realy blown away! It's amazing how
simple most things can be done! Very, very cool!
Thanks, Max
Howard Lewis Ship wrote:
>
> We're definitely getting into some contention here, as others are just as
> eloquent that nulls should be coerced to zeros (and that's a code change
> that went in last week).
>
> I think this needs more consideration. I'm thinking this needs to be
> decided using a translator and there should be an easy way to handle this
> inside BeanEditor. For example, property type Integer (wrapper type) uses
> null when the user input is blank, but type int (the primitive) uses 0.
>
> On 10/3/07, Tom Davies <[EMAIL PROTECTED]> wrote:
>>
>> I'd like to be able to have optional values in a BeanEditForm linked
>> bean represented as null, e.g. if they are of type Integer.
>>
>> I get the exception below.
>>
>> Should 'null' just coerce straight to null, unless it is trying to go
>> to a primitive type?
>>
>> In TypeCoercerImpl, perhaps:
>>
>> // Treat null as void in terms of locating a coercion.
>>
>> Class sourceType = input != null ? input.getClass() :
>> void.class;
>>
>> Should be: (untested)
>>
>> if (input == null)
>> {
>> if (targetType.isPrimitive())
>> {
>> throw ...
>> }
>> else
>> {
>> return null;
>> }
>> }
>>
>> Tom
>>
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>>
>
>
> --
> Howard M. Lewis Ship
> Partner and Senior Architect at Feature50
>
> Creator Apache Tapestry and Apache HiveMind
>
>
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