Re: xdoclet-user Digest, Vol 13, Issue 6

Konstantin, what yaour counter bean looks like? Is it just increment the
last ID in table or what?

On 6/25/07, [email protected] <
[email protected]> wrote:
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> Today's Topics:
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>    1. OT: Invitation to participate in research project (Ben Alex)
>    2. get new created row Id (John Doe)
>    3. Re: get new created row Id (Konstantin Priblouda)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 25 Jun 2007 19:28:02 +1000
> From: Ben Alex <[email protected]>
> Subject: [Xdoclet-user] OT: Invitation to participate in research
>         project
> To: [email protected]
> Message-ID: <[email protected]>
>
> Hello there
>
> I would greatly appreciate a small amount of your time to assist with
> my doctoral research at The University of Newcastle. The research
> concerns open source licensing and we're seeking developers working on
> Java projects. The research is supervised, ethics-approved, anonymous
> and results will be freely available. Participation will also provide a
> custom licensing report for your project. To learn more, please visit:
>
>    http://licensing-research.newcastle.edu.au
>
> Thanks for reading this email, and I hope you'll consider participating.
>
> Best regards
> Ben Alex
>
> (My apologies for being off-topic; this list will not be emailed again)
>
>
>
> ------------------------------
>
> Message: 2
> Date: Mon, 25 Jun 2007 22:15:06 +0400
> From: "John Doe" <[email protected]>
> Subject: [Xdoclet-user] get new created row Id
> To: [email protected]
> Message-ID:
>         <[email protected]>
> Content-Type: text/plain; charset="koi8-r"
>
> Hi. I create row in DB through cmp and try to get it's id like this :
> Object ref = context.lookup("ContractLocal");
> ContractLocalHome contractLocal = (ContractLocalHome) ref;
> ret = contractLocal.create(contract).getId();
>
> but I get :
>
> 2007-06-25 14:44:02,384 ERROR [org.jboss.ejb.plugins.LogInterceptor]
> EJBException in method: public abstract java.lang.Integer
> com.egar.chronim.server.ejb.SessionFacade.createContract(
> com.egar.chronim.model.Contract) throws java.rmi.RemoteException:
> javax.ejb.NoSuchObjectLocalException: Entity not found: primaryKey=0
>
> but row creates in DB. So I can't get Id through my local interface
> because
> EJB has id as 0. It does not increment like it does in DB.
> How can I get the real ID of new created row?
>
>
>
> --
> Best regards,
> Bashma?ov Anton
> -------------- next part --------------
> An HTML attachment was scrubbed...
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> ------------------------------
>
> Message: 3
> Date: Mon, 25 Jun 2007 12:05:23 -0700 (PDT)
> From: Konstantin Priblouda <[email protected]>
> Subject: Re: [Xdoclet-user] get new created row Id
> To: End-user support for the XDoclet code generator
>         <[email protected]>
> Message-ID: <[email protected]>
> Content-Type: text/plain; charset=iso-8859-1
>
>
> --- John Doe <[email protected]> wrote:
>
> >  Hi. I create row in DB through cmp and try to get
> > it's id like this :
> > Object ref = context.lookup("ContractLocal");
> > ContractLocalHome contractLocal =
> > (ContractLocalHome) ref;
> > ret = contractLocal.create(contract).getId();
> >
> > but I get :
> >
> > 2007-06-25 14:44:02,384 ERROR
> > [org.jboss.ejb.plugins.LogInterceptor]
> > EJBException in method: public abstract
> > java.lang.Integer
> >
> com.egar.chronim.server.ejb.SessionFacade.createContract(
> > com.egar.chronim.model.Contract) throws
> > java.rmi.RemoteException:
> > javax.ejb.NoSuchObjectLocalException: Entity not
> > found: primaryKey=0
> >
> > but row creates in DB. So I can't get Id through my
> > local interface because
> > EJB has id as 0. It does not increment like it does
> > in DB.
> > How can I get the real ID of new created row?
>
> Thanks go to the EJB spec ;)
>
> Short version is -your fresh and smelly EJB does not
> get any ID until it is saved into database. You can
> not
> control when it saved into database - so you have no
> possibility to reliably get ID of freshly created
> entity
> bean.
> Back then in old days I actually used  entity beans,
> we created counter beans and received sequncial IDs
> from there.
> ( Looks idiotic - but that's life and standarts ;) )
> Good news is that such counter entity bean is really
> transaction oriented and produces good IDs.
>
> regards,
>
>
>
> ----[ Konstantin Pribluda http://www.pribluda.de ]----------------
> JTec quality components: http://www.pribluda.de/projects/
>
>
>
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> End of xdoclet-user Digest, Vol 13, Issue 6
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-- 
Best regards,
Bashmaкov Anton

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