Don't get me wrong I know it's good practice to use a surrogate key instead of a
natural one, but why does the key need to be a UUID? Seems that it's a bit big and a
sequence would do just as nicely. Then we don't need this 'workaround'
creating the keys by 'hand'.
Because the 'workaround' does have a problem, when would we create the id?
Hibernate will 'normally' use null as a value for the id to see that it's a
new entity and preforms an insert. But maybe hibernate is smart enough, because you could
also use primitives for keys although that is not recommended.
Anyway that is why I suggest let's keep it simple and use a Long for the id
On 7 Nov,2013, at 14:48 , Matthias Wessendorf <matzew(a)apache.org> wrote:
On Thu, Nov 7, 2013 at 2:40 PM, Lucas Holmquist <lholmqui(a)redhat.com> wrote:
On Nov 7, 2013, at 7:52 AM, Matthias Wessendorf <matzew(a)apache.org> wrote:
>
>
>
> On Thu, Nov 7, 2013 at 1:20 PM, Erik Jan de Wit <edewit(a)redhat.com> wrote:
> +1 we can do without the hibernate dependency, making the code more portable. One
question it does raise, is why are UUID used as keys? And if a class like PushApplication
already has a UUID why would it need another UUID for a key?
>
> primaryKey (database)
> variant/pushAPP ID (semantic meaning)
>
> A while ago we decided to NOT use the PK as the variant/pushAPP ID; let me see if I
can find the JIRA/thread
here is where i brought this up
http://aerogear-dev.1069024.n5.nabble.com/aerogear-dev-AeroGear-Push-Mess...
https://issues.jboss.org/browse/AGPUSH-86
>
>
> On 7 Nov,2013, at 12:38 , Matthias Wessendorf <matzew(a)apache.org> wrote:
>
>> Hello,
>>
>> today the PushApplicationID ([1]) and VariantID (iOS example: [2]) are generated
w/in the RESTful endpoint class. I'd like to move that into the actual entity -
similar to what we today already do with the (master)secret (e.g. [3] or [4]).
>>
>> Thoughts?
>>
>>
>> While on it - I'd like to do similar to the PK all ALL entities... Today we
have an (odd) Hibernate dependency (see [5]), simple b/c of JPA being lame and not
providing "propper" UUID support.... So idea is to
>> * remove the odd annotation
>> * do the ID generation "by hand" (like we do on the secret (see
above...))
>>
>> Thoughts?
>>
>> Sure, this (both items of this mail) might lead to some more re-usable code (and
better tests)
>>
>>
>> -Matthias
>>
>>
>> [1]
https://github.com/aerogear/aerogear-unifiedpush-server/blob/master/src/m...
>> [2]
https://github.com/aerogear/aerogear-unifiedpush-server/blob/master/src/m...
>> [3]
https://github.com/aerogear/aerogear-unifiedpush-server/blob/master/src/m...
>> [4]
https://github.com/aerogear/aerogear-unifiedpush-server/blob/master/src/m...
>> [5]
https://github.com/aerogear/aerogear-unifiedpush-server/blob/master/src/m...
>>
>> --
>> Matthias Wessendorf
>>
>> blog:
http://matthiaswessendorf.wordpress.com/
>> sessions:
http://www.slideshare.net/mwessendorf
>> twitter:
http://twitter.com/mwessendorf
>> _______________________________________________
>> aerogear-dev mailing list
>> aerogear-dev(a)lists.jboss.org
>>
https://lists.jboss.org/mailman/listinfo/aerogear-dev
>
>
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>
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>
> --
> Matthias Wessendorf
>
> blog:
http://matthiaswessendorf.wordpress.com/
> sessions:
http://www.slideshare.net/mwessendorf
> twitter:
http://twitter.com/mwessendorf
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>
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Matthias Wessendorf
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http://matthiaswessendorf.wordpress.com/
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