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[CDO] CDOBlob datatype [message #1739090]

Wed, 27 July 2016 13:34

Robert Schulk

Messages: 144
Registered: July 2015

Senior Member

I am trying to use the datatype CDOBlob.
In project org.eclipse.emf.cdo.tests.model3, there is an example model which uses CDOBlob.

Now, my problem is that the ecore validation flags an error if I set my CDOBlob attribute to non-transient as is done in the test-model:

"The attribute 'MyContainer.blobTest' is not transient so it must have a data type that is serializable"

So what is the right setting for CDOBlob? I tried:

1) Non-Transient: this works, but ecore validation throws ugly errors.
2) Transient: changes are not persistent! (Ecore validation flags no errors though).

Can someone help me with this issue?
Thanks!
Robert

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Re: [CDO] CDOBlob datatype [message #1739099 is a reply to message #1739090]

Wed, 27 July 2016 14:03

Eike Stepper

Messages: 6682
Registered: July 2009

Senior Member

Am 27.07.2016 um 16:34 schrieb Robert Schulk:
> I am trying to use the datatype CDOBlob.
> In project org.eclipse.emf.cdo.tests.model3, there is an example model which uses CDOBlob.
>
> Now, my problem is that the ecore validation flags an error if I set my CDOBlob attribute to non-transient as is done
> in the test-model:
>
> "The attribute 'MyContainer.blobTest' is not transient so it must have a data type that is serializable"
>
> So what is the right setting for CDOBlob? I tried:
>
> 1) Non-Transient: this works, but ecore validation throws ugly errors.
> 2) Transient: changes are not persistent! (Ecore validation flags no errors though).
1) is the way to go.

I did not notice this before, but our test model3.ecore doesn't validate successfully, either. I'd like to investigate
that when I'm back from vacation. Please submit a bugzilla to remind me.

Cheers
/Eike

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Cheers
/Eike

----
http://www.esc-net.de
http://thegordian.blogspot.com
http://twitter.com/eikestepper

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