BTW, the dashed oval is a collaboration. The intent is to provide a
mechanism to easily represent a society of elements that work together to
provide some set of behavior...
Kirk Knoernschild
Senior Consultant
TeamSoft, Inc.
www.teamsoftinc.com
Consulting, Training, & Mentoring
**--------------------------------------------------------------------------
----------------
* The opinions expressed here do not necessarily reflect those
* of TeamSoft, Inc., nor Kraft Foods.
**--------------------------------------------------------------------------
----------------
> -----Original Message-----
> From: Yakov, Debby [SMTP:[EMAIL PROTECTED]]
> Sent: Thursday, December 07, 2000 1:07 PM
> To: 'Williamson, Rusty'; [EMAIL PROTECTED]
> Subject: RE: (ROSE) singleton
>
>
> Charles Richter discusses design patterns in chapter 9 of his book
> "Designing Flexible Object-Oriented Systems with UML". He states that UML
> provides syntax to document the application of a pattern and provides
> several figures that show how this is done. Briefly, in a class diagram,
> the
> name of the pattern appears in a dashed oval, with dependencies extending
> from it to the classes that participate in the pattern. Where the
> dependency
> intersects with the class, a label appears describing the role that class
> plays in the pattern.
>
> -----Original Message-----
> From: Williamson, Rusty [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, December 07, 2000 12:23 PM
> To: [EMAIL PROTECTED]
> Subject: RE: (ROSE) singleton
>
>
>
> Hello,
>
> Somewhere I saw a method for indicating design patterns in UML -- they
> used
> comment boxes with a black background and white lettering (and in Rose you
> could create a link to a class diagram that isolates the pattern when you
> feel that is needed for understanding). Anyway, I don't remember where I
> saw this and apparently it is not a standard -- so far I can not find a
> standard. Has anyone else see this method? If so where? I've gone out
> on
> a limb and written this into the first draft of our modeling guidelines
> but
> find a clear direction that the industry is taking.
>
> Yes, I've used stereotypes for patterns but as was pointed out, you only
> get
> one stereotype and so you can run into conflicts... also must patterns are
> made up of many classes and these classes can have stereotypes of the
> parts
> that they play in the pattern (i.e. in the MVC you see stereotypes used
> such
> as model, view, controller, observer).
>
> Has Rational done anything official? How about the pattern community?
>
> Thanks!
> Rusty
> ------------------------------------------------------------
> Rusty Williamson
> > Sr. Systems Architect
> GERS Retail Systems
> http://www.gers.com/
> The Object Workshop
> http://home.san.rr.com/williamson/
> Home Page
> http://www.znet.com/~rusty/
> ------------------------------------------------------------
>
>
>
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, December 07, 2000 8:15 AM
> To: [EMAIL PROTECTED]
> Subject: RE: (ROSE) singleton
>
>
>
>
> I have a question which relates to representation of a Singleton class in
> UML.
>
> When a singleton class REed into Rose, it shows up with a unidirectional
> reflexive association. Rose does this because it finds a STATIC object of
> this class as a member varaible. To my way of thinking (correct me if I am
> wrong), reflexive association for a class means that TWO objects of this
> class are rquired to communicate. But for a singleton class ONE and ONLY
> ONE object can exist.
>
> Is this a correct representation of a singleton class? Any comments or
> thoughts are appreciated.
>
> Manoj Chopra
>
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