[news.eclipse.technology.kepler] Re: Versioning the models

[Carlos Sanchez <carlos.sanchez@xxxxxxxxxxx>]

if you version the model you will have to version the schema anyway,
because if you change something in the schema you don't want it to be
applied to old models

Philip Dodds wrote:
> so the schema namespace would therefore contain the version ie. 
> http://www.eclipse.org/kepler/project/model/1.0
> 
> So if you are using EMF how does this work - do you need to have a
> different generated code for each version?  so that you can load
> different versions and then "upgrade" the older versions?
> 
> Welcome back by the way ;)
> 
> Cheers
> 
> P
> 
> 
> 
> On 2007-08-27 13:41:22 -0400, Thomas Hallgren <thomas@xxxxxxx> said:
> 
>> I think that since the model is described by a schema, the schema
>> should be versioned, not the model. Implies of course that any
>> instance of the model contains correct xmlns attributes.
>>
>> Regards,
>> Thomas Hallgren
>>
>> Philip Dodds wrote:
>>> I was looking at the models that we have started to add for the core
>>> structure of the project meta-data at
>>> http://wiki.eclipse.org/Kepler_Schema_project-core
>>>
>>> I was thinking that we should probably add a model version attribute
>>> to the project element and also to the facet's so that we can handle
>>> changes in the core model in the tooling.
>>>
>>> Thoughts ?
>>>
>>> Cheers
>>>
>>> P
> 
>