Hi Rainer,
On 6/15/2011 5:06 AM, Rainer Kwesi Schweigkoffer wrote:
> Hi Linda,
>
> thanks a lot for all the changes. We will discuss the remaining open
> issues in the concall then.
>
> One thing I have come across, though, is whether we need an additional
>
> <X, T extends X> Root<T> treat(Root<X> root, Class<T> type)
>
> method at CriteriaBuilder. Take, for instance,
>
> SELECT p
> FROM Product p
> WHERE 10000< ALL (
> SELECT a.balance
> FROM (TREAT p as Book).writer w
> JOIN w.accounts a
> )
>
> The cast at
>
> CriteriaQuery<Product> q = cb.createQuery(Product.class);
> Root<Product> product = q.from(Product.class);
> Subquery<Integer> sq = q.subquery(Integer.class);
> Root<Book> orderSub = (Root<Book>)
> cb.treat(sq.correlate(product), Book.class);
> Join<Book,Author> writer = orderSub.join(Book_.writer);
> Join<Author,Account> account = writer.join(Author_.accounts);
> sq.select(account.get(Account_.balance));
> q.where(cb.lt(cb.literal(10000), cb.all(sq)));
>
> seems to be a bit ugly to me.
>
I agree. I think we need the additional method.
thanks,
-Linda
> Best regards
> Rainer
>
>
> Linda DeMichiel, am 10 Jun 2011 hast Du um 12:20 zum Thema "[jsr338-experts] updated spec draft" geschrieben :
>
>> I've just uploaded another specification draft to the jpa-spec project,
>> http://java.net/projects/jpa-spec/downloads.
>>
>> This incorporates the technical changes that I've indicated in recent
>> email correspondence and other minor fixes (corrections to typos, etc.)
>>
>> I am planning to hold a concall to address open issues once we have
>> more of a critical mass of these, and once my schedule frees up a bit.
>>
>> The changebars are additive from the last draft, as I am not planning
>> to reset changebars until after we release a milestone draft to the
>> JCP site.
>>
>> -Linda
>>
>
>
> ---
> Rainer Schweigkoffer SAP AG Walldorf
> Business Solution& Technology TD Core JS&I
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