Home » Archived » M2M (model-to-model transformation) » [QVTO] Number Conversion Issue
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| Re: [QVTO] Number Conversion Issue [message #104840 is a reply to message #104811] |
Mon, 11 May 2009 10:08   |
 Radomil Dvorak
Messages: 249
Registered: July 2009 |
Senior Member |
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Hi Alan,
Thanks for catching the problem. You even digged into the source code and
provided
a fix, which is great!
Yes, this is this the right and I guess the only place to post such a
question ;),
however the bugzilla is great too, especially if you provide a patch.
Could you please raise a new bugzilla here?
https://bugs.eclipse.org/bugs/enter_bug.cgi?product=M2M& component=QVT_OML-Engine
It's not just to add more work for you ;), but to help us easily track
contributions
so you can appear in the IP log of our project.
Would be great if you provide a QVT code snippet to reproduce the issue.
Regards,
/Radek
On Mon, 11 May 2009 11:33:45 +0200, wrote:
> On Mon, 11 May 2009 02:38:19 +0200, Alan McMorran <alan@mcmorran.co.uk>
> wrote:
>
>> This is my first post to the group, so I hope this is a worthwhile
>> place to post this question (and my potential resolution). During some
>> headless QVTO testing I was getting errors about casting Floats to
>> Doubles (between two EMF models with generated and pre-compiled Java
>> classes). I had a look into the QVTO runtime source and found that in
>> the org/eclipse/m2m/internal/qvt/oml/evaluator/NumberConversions .java
>> file the test for number conversion was checking if a target
>> attribute's instance type were of the Object type (e.g. Integer.class,
>> Double.class, Boolean.class etc.) and our problem was that the
>> attributes reported their instance class as being the primitive class
>> (e.g. int.class, double.class and boolean.class)
>>
>> I made a change to the NumberConversion.java file so that this would be
>> taken into account (assuming that Java 1.5+ autoboxing would take care
>> of the conversions to the primitives) and this patch to the
>> NumberConversions.java file fixed this issue for us. I was wondering
>> whether this is something that should be included in the main QVT
>> source or if that behaviour is what is expected (and so whether we need
>> to work around it).
>>
>> I generated a patch in Eclipse which you can grab here:
>> http://cimphony.org/org.eclipse.m2m.qvt.oml.patch
>>
>> Cheers
>>
>> Alan
>>
>
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| Re: [QVTO] Number Conversion Issue [message #104952 is a reply to message #104937] |
Tue, 12 May 2009 10:25 |
Radomil Dvorak
Messages: 249
Registered: July 2009 |
Senior Member |
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Hi Alan,
Thanks!
No need for the actual models, just wanted to know the context of usage,
like
assignment, cast or numeric operation etc., exactly as you did in the
bugzilla.
Regards,
/Radek
On Tue, 12 May 2009 11:17:21 +0200, Alan McMorran <alan@mcmorran.co.uk>
wrote:
> On 2009-05-11 12:08:03 +0200, "Radek Dvorak" <radek.dvorak@borland.com>
> said:
>
>> Hi Alan,
>> Thanks for catching the problem. You even digged into the source code
>> and provided
>> a fix, which is great!
>
> Not a problem, figured I might as well make use of it being open-source
> :-) Still happier digging about in Java code than QVT at the moment
> anyway!
>
>> Yes, this is this the right and I guess the only place to post such a
>> question ;),
>> however the bugzilla is great too, especially if you provide a patch.
>> Could you please raise a new bugzilla here?
>> https://bugs.eclipse.org/bugs/enter_bug.cgi?product=M2M& component=QVT_OML-Engine
>
> It's
>> not just to add more work for you ;), but to help us easily track
>> contributions
>> so you can appear in the IP log of our project.
>
> https://bugs.eclipse.org/bugs/show_bug.cgi?id=275824
>
> Done!
>
>> Would be great if you provide a QVT code snippet to reproduce the issue.
>
> I can't include the actual models or transforms due to contractual
> agreements but it was actually just pretty simple EFloat to a custom
> datatype of instance type double.class (i.e. a duplicate of EDouble) and
> I think the main issue has been that the transform was working with
> Genmodel generated Java class files for both models (as opposed to
> Dynamic models).
>
> Cheers
>
> Alan
>
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