Use the IN constant

http://code.google.com/appengine/docs/java/javadoc/com/google/appengine/api/datastore/Query.FilterOperator.html#IN

On Tue, Jul 19, 2011 at 3:49 PM, Bruno Fuster <brunofus...@gmail.com> wrote:

> select * from User where friends in (200,300,400)
>
>
> On Tue, Jul 19, 2011 at 3:46 PM, keyvez <key...@gmail.com> wrote:
>
>> Hi,
>>
>> I need help with doing a query that uses a "contains" filter operation.
>> The specific use case is that I have to find all users that are have me as a
>> friend. The User class has a List<Long> of friends. In JPA I am able to do
>> something like this "SELECT FROM User u WHERE u.friends.contains(:myId)".
>> However, I haven't figured out how to do this with low-level datastore API.
>> The Query.FilterOperation enum doesn't have a CONTAINS constant.
>>
>> I really want to use low-level datastore API to be able to use paging
>> operations. I could do some sort of paging using JPA too, but I don't want
>> to do that.
>>
>> Thanks,
>> Gaurav
>>
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>
>
>
> --
> Bruno Fuster
>
>


-- 
Bruno Fuster

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