Hi,
older versions of Rose give this Warning, too. For me it is what I want
because the generated code wouldn't compile.
IMHO the aggregating class is always responsible for creation
and destruction of its aggregates. What you described is a by-reference
aggregation to me for which Rose generates C++ pointers.
Regards
Michael Seibt
Mathieu Girard wrote:
>
> Hi all,
>
> We are currently evaluating Rose C++ 2001, trying to recover the model from
> Rose C++ 98. Everything seems to work fine, except for the C++ code
> generation of by-value aggregations. When generating the code, we get this
> brand new message:
>
> <<
> Warning: !!! Class "A" has a forward reference to "B"
> and it also has a by-value containment of "B."
> >>
>
> I think there is a misunderstanding from Rational, which has qualified
> "composition" (which means life-cycle control to me) as "by-value"
> containment, since the begining of Rose. If a class A composes a class B for
> UML, it is perfectly logical (to me) to compose it with a C++ pointer,
> provided A is in charge of creation/destruction of B. I think Rational got
> mixed-up between logical and physical modelling of composition.
>
> To me, it seems perfectly normal to have a forward declaration of class B in
> the header A.h , defining a C++ pointer to B in the definition of class A,
> include the header file B.h in the source file A.cpp, and manage the
> allocation/deletion of the instance of B in the source file A.cpp.
> Obviously, Rose 2001 objects to this, and a new warning has been added.
>
> Does anyone of you know how to disable this warning? I have parsed the
> option tabs of Rose, and could not find anything to get rid of it...
>
> Regards,
>
> Mathieu
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