users@glassfish.java.net

Re: Entity auto generated id

From: legolas wood <legolas.w_at_gmail.com>
Date: Wed, 24 Jan 2007 08:15:37 -0800

Baker, Brad (Contr) wrote:
> This seems like a Data Base question. Not a glassfish dev question.
>
>
>
> MS SQL will do auto gen GUIDs as PKs.
>
>
>
> -Brad
>
>
>
> ________________________________
>
> From: Kenneth Clark [mailto:kenneth_at_rabiddog.co.za]
> Sent: Wednesday, January 24, 2007 8:43 AM
> To: users_at_glassfish.dev.java.net
> Subject: Re: Entity auto generated id
>
>
>
> Is this even possible? Please help here. Been sitting on this the whole
> day and I just can't find docs on it. Should I rather post this in the
> forum?
>
> Thanks
>
> Kenneth Clark
> Developer / Analyst
>
> Rabid Dog Laboratories (tm)
> Putting the art back into development
>
> tel: +27 11 475 7409
> mobile: +27 82 500 5090
> e-mail: kenneth_at_rabiddog.co.za
> website: http://www.rabiddog.co.za/
>
>
>
> Kenneth Clark wrote:
>
> This might be a really weird question so please forgive me
>
> Is there anyway to auto generate a unique ID using a custom routine for
> the record?
>
> i.e.: I would like to use a GUID as the PK value for an entity. Is this
> possible?
>
> Thanks
>
>

Kenneth , What is your persistence mechanism ?
in case that you are using EJB3 you can have your own generator to generate your entity IDs.
in case that you are using plain JDBC you can simply generate the ID and put it into the column when you insert a row into database.