[gme-users] Query regarding BON2 interpreter

[Zoltan Molnar]

Sorry, I did not realize one more thing in your code. Please use

BON::Connection conn;
conn = BON::Connection::create(SM, s0, s1, string("Transition"));

instead of 

> > BON::Connection conn;
> > conn->create(SM, s0, s1, string("Transition"));


(create methods are static, so they can be invoked in two ways, in the
latter case althought it compiles, it works only if conn is already a
non-null object)


Br, Zoli

> -----Original Message-----
> From: gme-users-bounces at list.isis.vanderbilt.edu 
> [mailto:gme-users-bounces at list.isis.vanderbilt.edu] On Behalf 
> Of damathai at vt.edu
> Sent: Tuesday, August 08, 2006 10:54 AM
> To: gme-users
> Subject: RE: [gme-users] Query regarding BON2 interpreter
> 
> 
> Hi Zoltan,
> 
> Thanks for the prompt reply.
> 
> I did try this. I traced the implementation hierarchy to see 
> if i could pass BON::Model in place of BON::Connection.
> 
> This compiles fine, but gives me a run-time error, saying 
> "Debug Assertion Failed!"
> File: c:\program files\gme\sdk\bon\util.h
> Line: 520
> 
> If I ignore this error, then it terminates on me saying: 
> Exception kind : Util Exception Exception message : Object is null
> 
> So i did realise that it is not able to extract the objects 
> (srcEnd and dstEnd of the transition). And i conclude that 
> this was not the way to do it.
> 
> So, do you know as to why i'm having this problem. I am using 
> GME Version 4.11.10 Could that be the problem?...Is this a 
> bug in the tool and has been fixed now?
> 
> Let me know what you think about this.
> 
> Thank you,
> 
> Regards,
> Deepak
> 
> 
> Quoting Zoltan Molnar <zolmol at isis.vanderbilt.edu>:
> 
> > Hi,
> >
> > You can just put s0 and s1 instead of srcEnd and dstEnd, because 
> > BON::Model inherits from BON::ConnectionEnd.
> >
> > BON::Connection conn;
> > conn->create(SM, s0, s1, string("Transition"));
> >
> > Br, Zoli
> >
> >
> > > -----Original Message-----
> > > From: gme-users-bounces at list.isis.vanderbilt.edu
> > > [mailto:gme-users-bounces at list.isis.vanderbilt.edu] On Behalf Of 
> > > damathai at vt.edu
> > > Sent: Monday, August 07, 2006 11:46 PM
> > > To: gme-users
> > > Subject: [gme-users] Query regarding BON2 interpreter
> > >
> > >
> > > Hello there,
> > >
> > > My name is Deepak Mathaikutty and i'm a frequent user of GME. I 
> > > would like some help on a problem i'm facing.
> > >
> > > Here is my question:
> > >
> > > I'm constructing a finite state machine from my user 
> model created 
> > > using a metamodel i created in GME. The state machine 
> construction 
> > > is done through the BON2 interpreter.
> > >
> > > So i create states which is pretty straight forward :
> > >
> > > BON::Model s0;
> > > s0->create(SM, string("State"));
> > > s0->setName(string("STATE0"));
> > >
> > > BON::Model s1;
> > > s1->create(SM, string("State"));
> > > s1->setName(string("STATE1"));
> > >
> > > Assume SM to be the toplevel which acts as the parent for 
> the state 
> > > machine and State is a <<model>> entity in my metamodel.
> > >
> > > Now my question is I want to connect these states by creating a 
> > > transition, which is a <<model>> entity in my metamodel
> > >
> > > Which would something like this :
> > >
> > > BON::Connection conn;
> > > conn->create(SM, srcEnd, dstEnd, string("Transition"));
> > >
> > > srcEnd and dstEnd are of type BON::ConnectionEnd.
> > >
> > > So how to initialize or get srcEnd to point to s0 and 
> dstEnd to s1?
> > >
> > > I can not find any appropriate APIs to do so.
> > >
> > > Let me know if i'm not doing it the right way.
> > >
> > > I will be grateful if someone can help me with this. Basically i 
> > > want to create a state machine through the interpreter, which 
> > > requires creating states (this is fine) and transitions, 
> which i'm 
> > > having problems with.
> > >
> > > Thank you,
> > >
> > > Regards,
> > > Deepak
> > > _______________________________________________
> > > gme-users mailing list
> > > gme-users at list.isis.vanderbilt.edu
> > > http://list.isis.vanderbilt.edu/mailman/listinfo/gme-users
> > >
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> > gme-users mailing list
> > gme-users at list.isis.vanderbilt.edu
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> >
> 
> 
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