On Sep 16, 2010, at 1:24 PM, Jacek Kałucki wrote:
>> But if you really, really need to remove that attribute, it's simple:
>>
>> self.foo = False
>> self.scan(...)
>> if self.foo:
>> doWhatever()
>> del self.foo
>
> It's still much more complicated than just return value:
>
> if self.scan(...):
> doWhatever()
Perhaps for your use case, but what exactly does the return value
represent? Does it mean that all the rows were scanned? Does it mean that the
function returned True for all rows? Does it mean that it returned True for at
least one row?
What about if someone wants to return a tuple of all function values?
Or the sum of all the calls? Or the count? Or the...
Frameworks don't solve individual use cases; they provide general
patterns to allow developers to solve their particular needs. The scan() method
is designed to apply a function to all rows in the dataset. If you have a need
that is more complex than that, I've already suggested using a bizIterator to
handle things.
-- Ed Leafe
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