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Date: Wed, 29 Jul 2009 17:05:25 +0400
Message-ID: <3219fff70907290605y6545b17eqeed08c33abe923ea@mail.gmail.com>
Subject: Re: Refresh ObjectId for meaningful PK
From: Andrey Razumovsky <razumovsky.andrey@gmail.com>
To: user@cayenne.apache.org
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Manually invoking setObjectId() in the middle of CDO lifecycle isn't a good
idea, because data object might have already been registered in context with
another ObjectId. What CayenneRuntimeExeptions are you having and what is
your version of Cayenne?

2009/7/29 Juergen Saar <juergen@jsaar.org>

> Hi,
>
> I'm working on an 20 year old project with meaningful primary keys.
>
> Till now, we used cayenne only for reading but now we are working on the
> first 'real' Web-Components that handle Order-Data.
>
> So I have to create the primary key myself.
>
> In the Modeller I created ObjAttributes for the PK-Fields and use the
> setters to transfer the PK-Values to the Business-Object.
>
> In most cases this seems to work, only sometimes a CayenneRuntimeExeption
> tells me some Problems about temporary ObjectIds. The Data are stored
> pretty
> correct in the Database Tables.
>
> In some cases, especially on 1:1 Relations there are Problems with the
> Foreign Keys.
>
> So I try to setup my own ObjectId with the generated Values for the primary
> Key and put this into the DataObject by setObjectId().
>
> This brings the whole BusinessObject in trouble.
>
> Is there a correct way to solve this problem?
> -Juergen-
>

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