users@glassfish.java.net

RE: Entity auto generated id

From: Gordon Yorke <gordon.yorke_at_oracle.com>
Date: Wed, 24 Jan 2007 12:41:09 -0500

Rabid Dog Labs SignatureAlso file an enhancement request against the entity-persistence module in glassfish. We can add this as extended functionality.
--Gordon
  -----Original Message-----
  From: Kenneth Clark [mailto:kenneth_at_rabiddog.co.za]
  Sent: Wednesday, January 24, 2007 11:39 AM
  To: users_at_glassfish.dev.java.net
  Subject: Re: Entity auto generated id


  Will provision ever be made for this type of thing or is there just not enough demand for this type of functionality?



  Kenneth Clark
  Developer / Analyst

  Rabid Dog Laboratories T
  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/


  Gordon Yorke wrote:
Hello All,
    There is no support in the JPA Specification for pluggable Generation types. Only the 4 predefined types : TABLE, SEQUENCE, IDENTITY, AUTO which represent popular database sequencing methods.
--Gordon

-----Original Message-----
From: legolas wood [mailto:legolas.w_at_gmail.com]
Sent: Wednesday, January 24, 2007 11:16 AM
To: users_at_glassfish.dev.java.net
Subject: Re: Entity auto generated id


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.

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