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[CDO] CDO Duplicate ID problem with multiple getResource() calls in the same transaction [message #424321]

Wed, 22 October 2008 21:21

Stephen McCants

Messages: 92
Registered: July 2009

Member

Hello,

Sorry to keep bringing up problems, but I'm hope this is the last one for a while. I've run into a
problem were sometimes loading a resource twice from the same CDOTransaction results into a
duplicate ID exception. I traced down into the CDO code and it looked like it wasn't finding the
resource (that was created with a getOrCreateResource() call) and therefore it was trying to create
it again, which resulted in a duplicate ID.

The different calls were in different functions, and I decided to cache the resource after getting
it the first time. That cleared up the problem. However, it seems like you should be able to call
getResource() multiple times in the same transaction on the same resource.

Thanks again!

--Stephen McCants

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Re: [CDO] CDO Duplicate ID problem with multiple getResource() calls in the same transaction [message #424322 is a reply to message #424321]

Wed, 22 October 2008 22:27

Simon Mc Duff

Messages: 596
Registered: July 2009

Senior Member

Hi Stephen,

this is a known issue :

248915: Resources fetched using CDOViewImpl.getResource(CDOID) not added
to ResourceSet
https://bugs.eclipse.org/bugs/show_bug.cgi?id=248915

This bugs also state that a duplicate ID could occured.

It is fixed with the ResourceFolder effort.

It is only available in HEAD.

Stephen McCants wrote:
> Hello,
>
> Sorry to keep bringing up problems, but I'm hope this is the last one
> for a while. I've run into a problem were sometimes loading a resource
> twice from the same CDOTransaction results into a duplicate ID
> exception. I traced down into the CDO code and it looked like it wasn't
> finding the resource (that was created with a getOrCreateResource()
> call) and therefore it was trying to create it again, which resulted in
> a duplicate ID.
>
> The different calls were in different functions, and I decided to cache
> the resource after getting it the first time. That cleared up the
> problem. However, it seems like you should be able to call
> getResource() multiple times in the same transaction on the same resource.
>
> Thanks again!
>
> --Stephen McCants

Report message to a moderator

Re: [CDO] CDO Duplicate ID problem with multiple getResource() calls in the same transaction [message #424323 is a reply to message #424322]

Wed, 22 October 2008 23:03

Stephen McCants

Messages: 92
Registered: July 2009

Member

Good to know. Thanks!
--Stephen

Simon McDuff wrote:
>
> Hi Stephen,
>
> this is a known issue :
>
> 248915: Resources fetched using CDOViewImpl.getResource(CDOID) not added
> to ResourceSet
> https://bugs.eclipse.org/bugs/show_bug.cgi?id=248915
>
> This bugs also state that a duplicate ID could occured.
>
> It is fixed with the ResourceFolder effort.
>
> It is only available in HEAD.
>
>

>

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