[Uml-devel] Bug or feature? Cant have same class appear more than once in class diagram

[Brian Thomas]

	Hi all,

	The message below prompts me to remember an irritation that I 
	have with Umbrello: You cant have the same class appear more 
	than once in each class diagram. I find this a irriating because I 
	may re-use a class many times in association with another class.
	Consider the following example:

	Sentence   -    <subject>  - Topic
               | 
          <predicate>
               |
          Topic

	where lines are assoications between classes and brakets describe
        the name of the associations ("Sentence" and "Topic" are the 2 classes).

	I can see a possible counterargument that it becomes hard to generate code 
        when a class appears more than one time in a diagram, but am not 100% 
        sure its so bad.

	Comments? I guess I lean towards removing this limitation in Umbrello
        if its not too hairy. I dont see any problem with UML rules as to why this 
        cant happen.

				-b.t.


On Wednesday 14 May 2003 03:03 pm, umbrello-devel-request at mail.kde.org wrote:
> On Tue, 13 May 2003, Philippe Boxho wrote:
> > Package: umbrello
> > Version: 1.1.1 (KDE 3.1.0) (Mandrake Linux Cooker i586 - Cooker)
> > Severity: normal
> > Compiler: gcc version 3.2.2 (Mandrake Linux 9.1 3.2.2-3mdk)
> > OS: Linux 2.4.19-32mdkenterprise i686 (Mandrake Linux Cooker i586 -
> > Cooker)
> >
> > In the class diagram when I try to add two Operations who have the
> > same name, I get a warning, but even if I answer yes, it didn't work
> > the operation appear in the UML Diagrams tree but not in the class
> > diagram, and when I try to delete one of these method the application
> > crash.
>
> This is a known bug and has been fixed in the CVS version.

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