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[QVTo] How to use generics defined in EMF Model [message #554311]

Sat, 21 August 2010 06:40

Eclipse User

Hello,

i use QVTo for my project. I have an ecore file that makes use of generics.

An Example:

class MessageExchange<T> {
attribute T message;
}

Then, i wanted to use QVTo for some model transformation. However, the attribute named message was only of type EJavaObject in QVTo.

Is it possible to work with Generics or do I have to rework my model?

Best regards,
Simon

Re: [QVTo] How to use generics defined in EMF Model [message #554321 is a reply to message #554311]

Sat, 21 August 2010 11:22

Eclipse User

Hi

The lack of generics is a major failure of UML-alignment in the current
OMG OCL specification and consequently most/all OCL implementations.
There doesn't seem to be an explicit OMG Issue; I'll raise one.

The current rework of MDT/OCL is adding underlying support for generics
which should enable QVTo, Acceleo etc to exploit generics.

It won't be in MDT/OCL till Indigo, and probably not in MDT/OCL's
consumers until Indigo+1.

Regards

Ed Willink

On 21/08/2010 11:40, Simon harrer wrote:
> Hello,
>
> i use QVTo for my project. I have an ecore file that makes use of generics.
>
> An Example:
> class MessageExchange<T> {
> attribute T message;
> }
>
> Then, i wanted to use QVTo for some model transformation. However, the
> attribute named message was only of type EJavaObject in QVTo.
> Is it possible to work with Generics or do I have to rework my model?
>
> Best regards,
> Simon

Re: [QVTo] How to use generics defined in EMF Model [message #554322 is a reply to message #554311]

Sat, 21 August 2010 11:34

Eclipse User

Thanks for your fast answer.

OK, I will work without Generics for starters. Maybe switching to them later.

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