Easy! no? ;)

2009/4/7 Davy Brion <[email protected]>

> can't we just ask the current driver if multi query is supported, and if
> not, call List<T> inside the Future<T> method?
>
> to the caller, the only difference would be the implementation type of the
> returned IEnumerable<T>, of which no assumptions should be made by the
> client anyway
>
> and for FutureValue<T>, we could just execute the query and return a
> FutureValue object with it's Value property set to the returned value of the
> query.
>
> i haven't actually tried this, but i don't really see what the problem
> could be.
>
> Clients know about IFutureValue<T> and IEnumerable<T>... whether they
> immediately have a value or not, depending on the capabilities of the
> current RDBMS, shouldn't really impact their code.
>
>
> On Tue, Apr 7, 2009 at 4:20 PM, Ayende Rahien <[email protected]> wrote:
>
>> Future is a strong optimization that we make based on features of the
>> RDBMS.
>> I think that it make sense to make it portable, but I worry about how you
>> do it.
>>
>>
>> On Tue, Apr 7, 2009 at 5:15 PM, Fabio Maulo <[email protected]> wrote:
>>
>>> 2009/4/7 Ayende Rahien <[email protected]>
>>>
>>>> would you mind sharing it :-)
>>>>
>>>
>>> In NH2.0.0 the code is portable and multi-RDBMS
>>>
>>> IEnumerable<Category> pl = session.CreateQuery("from
>>> Category").List<Category>();
>>>
>>> In NH2.1.0 this code is NOT portable and NOT multi-RDBMS, so far
>>>
>>> IEnumerable<Category> pl = session.CreateQuery("from
>>> Category").Future<Category>();
>>>
>>> What should write, the developer, if he want a multi-RDBMS solution ?
>>>
>>> The 2 lines the developer should write are the same we should write in
>>> the nh-core
>>>
>>> --
>>> Fabio Maulo
>>>
>>
>>
>


-- 
Fabio Maulo

Reply via email to