Posted by
DiegoLont on
Sep 12, 2016; 1:19pm
URL: https://forum.world.st/Adaptive-Magritte-Trait-tp4915126p4915217.html
Hi,
I have not read the article, but from what you describe I think Magritte already has an adaptive model, although it is not very explicit.
All objects can be asked for a magritte description on demand, and based on this description the components are generated. The components usually use a cache for the values, where the values are read from and stored into when the user makes changes. So, the components have a reference the description of the model and to the actual values of the model.
Regards,
Diego
> On 11 Sep 2016, at 19:49, Tapple Gao <
[hidden email]> wrote:
>
> Well, I think I at least figured out how to implement it. My issue was how to detect whether a given description is a regular one, or an adaptive one, in the implementation of #readUsing:. However, I then remembered that PRComponent already needs to do this, and so I looked at it’s code. It does
> (self basicMagritteDescription includes: aDescription)
>
> That still leaves the question though, does this trait version of MAAdaptiveModel exist?
>
>> On 11 Sep 2016, at 19:19, Tapple Gao <
[hidden email]> wrote:
>>
>> Quoting from
http://sdmeta.gforge.inria.fr/Teaching/Lille/0910-MetaModelisation/07-08-Cours43-DescribedBy-Reng07aMagritte.pdf section 4.1:
>>
>> The Adaptive- Model has two instance variables, the first being used to refer to the descriptions of the instance and the other one to keep a list of the actual values of the model. Transforming the class of the adaptive model into a Trait [18] allows us turn any existing class into an adaptive model and to combine the descriptions defined in the class with the ones provided by the instance.
>>
>> I cannot find this trait. Does it exist in magritte? I see MAAdaptiveModel, but I am indeed trying to add adaptivity to a class, and am struggling with it
>
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