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Make generated EMF classes implement Serializable [message #509031]

Thu, 21 January 2010 08:56

Svetoslav Missing name

Messages: 17
Registered: July 2009

Junior Member

Hi.

I have emf data model and I am using Teneo for persistence. However because I am using JSF for presentation I need to make the generated EMF classes implement Serializable. How can I achieve this?

Thank you!

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Re: Make generated EMF classes implement Serializable [message #509039 is a reply to message #509031]

Thu, 21 January 2010 04:22

Martin Taal

Messages: 5468
Registered: July 2009

Senior Member

Hi Svetoslav,
What I do myself is the following (but maybe others have better ideas):
- create an interface which extends both EObject and Serializable
- then in the genmodel in the field, root extends interface, set this interface and then regenerate the classes

Let me know if this works for you.

gr. Martin

Svetoslav wrote:
> Hi.
>
> I have emf data model and I am using Teneo for persistence. However
> because I am using JSF for presentation I need to make the generated EMF
> classes implement Serializable. How can I achieve this?
>
> Thank you!

--

With Regards, Martin Taal

Springsite/Elver.org
Office: Hardwareweg 4, 3821 BV Amersfoort
Postal: Nassaulaan 7, 3941 EC Doorn
The Netherlands
Cell: +31 (0)6 288 48 943
Tel: +31 (0)84 420 2397
Fax: +31 (0)84 225 9307
Mail: mtaal@springsite.com - mtaal@elver.org
Web: www.springsite.com - www.elver.org

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Re: Make generated EMF classes implement Serializable [message #509067 is a reply to message #509039]

Thu, 21 January 2010 10:34

Svetoslav Missing name

Messages: 17
Registered: July 2009

Junior Member

Hi.

Thank you for the quick reply. I have thought of that way but I didn't want to do it like that because Teneo would generate some unnecessary tables in the database and it will cause some overhead. I have read somewhere about Teneo annotations and that I could control the generation of the table that way but it seems too much work to manually add annotations to all the classes.. I have read some JET tutorials and probably I could achieve that by JET but I couldn't find how can I use it along with EMF model generation.

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Re: Make generated EMF classes implement Serializable [message #509072 is a reply to message #509067]

Thu, 21 January 2010 10:39

Martin Taal

Messages: 5468
Registered: July 2009

Senior Member

Hi Svetoslav,
Afaics no new tables would be generated in this way. The generated interfaces already extend EObject and Serializable
does not add anything. Let me know what you see happening if it is different.

Yes you can add annotations directly in the model (http://www.elver.org/hibernate/ejb3_format.html), but afaics it is
not needed in this case.

gr. Martin

Svetoslav wrote:
> Hi.
>
> Thank you for the quick reply. I have thought of that way but I didn't
> want to do it like that because Teneo would generate some unnecessary
> tables in the database and it will cause some overhead. I have read
> somewhere about Teneo annotations and that I could control the
> generation of the table that way but it seems too much work to manually
> add annotations to all the classes.. I have read some JET tutorials and
> probably I could achieve that by JET but I couldn't find how can I use
> it along with EMF model generation.

--

With Regards, Martin Taal

Springsite/Elver.org
Office: Hardwareweg 4, 3821 BV Amersfoort
Postal: Nassaulaan 7, 3941 EC Doorn
The Netherlands
Cell: +31 (0)6 288 48 943
Tel: +31 (0)84 420 2397
Fax: +31 (0)84 225 9307
Mail: mtaal@springsite.com - mtaal@elver.org
Web: www.springsite.com - www.elver.org

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Re: Make generated EMF classes implement Serializable [message #509095 is a reply to message #509072]

Thu, 21 January 2010 11:42

Svetoslav Missing name

Messages: 17
Registered: July 2009

Junior Member

Hi.

Thank you for the help! The first time I misunderstood you.. I thought that you are suggesting to create a new interface in the model and assign it to ESuper Type to all classes. It works fine the way you told me. Thanks again!

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Re: Make generated EMF classes implement Serializable [message #509101 is a reply to message #509072]

Thu, 21 January 2010 07:04

Ed Merks

Messages: 30653
Registered: July 2009

Senior Member

Guys,

This bugzilla has relatively complete patches (along the line of what
Martin is suggesting) for supporting this
https://bugs.eclipse.org/bugs/show_bug.cgi?id=245014

Martin Taal wrote:
> Hi Svetoslav,
> Afaics no new tables would be generated in this way. The generated
> interfaces already extend EObject and Serializable does not add
> anything. Let me know what you see happening if it is different.
>
> Yes you can add annotations directly in the model
> (http://www.elver.org/hibernate/ejb3_format.html), but afaics it is
> not needed in this case.
>
> gr. Martin
>
> Svetoslav wrote:
>> Hi.
>>
>> Thank you for the quick reply. I have thought of that way but I
>> didn't want to do it like that because Teneo would generate some
>> unnecessary tables in the database and it will cause some overhead. I
>> have read somewhere about Teneo annotations and that I could control
>> the generation of the table that way but it seems too much work to
>> manually add annotations to all the classes.. I have read some JET
>> tutorials and probably I could achieve that by JET but I couldn't
>> find how can I use it along with EMF model generation.
>
>

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