+1 if it is feasible for 2.0.0. Having a unique global Id maps nicely to the SCIM Id which "MUST be unique across the SCIM service provider's entire set of resources.".
Colm. On Mon, Apr 4, 2016 at 11:11 AM, Massimiliano Perrone < massimiliano.perr...@tirasa.net> wrote: > > > Il 04/04/2016 10:23, Francesco Chicchiriccò ha scritto: > >> Hi all, >> a recent e-mail on user@ [1] (about SCIM) made me reconsider one of the >> choices we've made in Syncope since the beginning, e.g. using table >> generators for long primary keys in several entities, and especially for >> users, groups and any objects (and maybe related as attributes, memberships >> and relationships). >> >> It seems that UUID offers several advantages, compared to natural keys >> (as "long" we use for the aforementioned entities) [2][3][4]. >> >> There is some open source UUID generator around [5], which is reported to >> perform quite better than standard JDK's, and also features time-based >> generation, particularly useful in cluster scenarios. >> >> Naturally, all this would mean changing some logic and data >> representation, hence a relevant impact on the codebase, but with >> considerable improvements in portability and performance. >> >> It is my opinion, after a quick chat with Mark Struberg on #openjpa, that >> this change might worth the effort, and also that we can make it before >> finalizing 2.0.0. >> >> I am going anyway to ask for details on users@openjpa. >> >> WDYT? >> > > It seems to be a good enhancement, my only doubt is only about the time. > Do you think it's a good idea (I'm supposing that you know how much time > you need to implement the feature) implementing it before the 2.0.0 release? > > Regards, > Massi > > Regards. >> >> [1] >> http://syncope-user.1051894.n5.nabble.com/Get-list-of-Users-from-a-Syncope-Group-td5708406.html >> [2] http://blog.codinghorror.com/primary-keys-ids-versus-guids/ >> [3] >> http://web.archive.org/web/20150511162734/http://databases.aspfaq.com/database/what-should-i-choose-for-my-primary-key.html >> [4] >> http://blog.xebia.com/jpa-implementation-patterns-using-uuids-as-primary-keys/ >> [5] https://github.com/cowtowncoder/java-uuid-generator >> >> > -- > Massimiliano Perrone > Tel +39 393 9121310 > > Tirasa S.r.l. > Viale D'Annunzio 267 - 65127 Pescara > Tel +39 0859116307 / FAX +39 0859111173 > http://www.tirasa.net > > "L'apprendere molte cose non insegna l'intelligenza" > (Eraclito) > > -- Colm O hEigeartaigh Talend Community Coder http://coders.talend.com
