One such "empty" object would be an iterator that has nothing to iterate.
There are other examples, but there's no way to test if an object is empty
without a method to determine it because various objects would have
different implementations on how to determine if it is empty.
--
Hector
On Thu, Mar 4, 2010 at 10:17 AM, Maghiel Dijksman <m...@mdijksman.nl> wrote:
> How can an object be empty? It's an instance of a class. So it is
> something.
>
>
> On 4-3-2010 17:55, Alayn Gortazar wrote:
>
>> El jue, 04-03-2010 a las 08:32 -0800, Hector Virgen escribió:
>>
>>
>>> You could create an "Empty" interface (or rather, Emptiable since I
>>> don't think you can use Empty):
>>>
>>>
>>> interface Emptiable
>>> {
>>> public function isEmpty();
>>> }
>>>
>>>
>>> Then make your validator accept Emptiable objects along with strings,
>>> arrays, ints, etc.
>>>
>>>
>>> Maybe you can come up with a better name than Emptiable :)
>>>
>>>
>> Yep you can always extend NotEmpty validator and add particular cases.
>>
>> I was just wondering if Zend really needed such a "feature", don't
>> really think so.
>>
>> Thanks anyway, ;)
>>
>>
>>
>>
>
>
