[kepler-dev] getting links from a compositeEntity

[Chad Berkley]

I'm still having no luck getting this to work.  All I want to do is copy 
the links and relations from one workflow to another.  I don't see any 
way to programatically access the links themselves.  I'm cloning all of 
the actors in the workflow, but they port link information does not seem 
to get transfered.  I don't understand why links aren't just another 
member of the model hierarchy that I can manipulate independently from 
the other objects.  They seem to be a "special" element in moml that you 
can never get direct control over.  Am I doing something that I ought 
not be doing by attempting to copy the links?  Is there something 
intrinsic to this process that I'm missing?

thanks,
chad



Edward A. Lee wrote:
> 
> CompositeEntity.exportFilter(int, Collection) takes a filter
> argument so that it will return only links involving in the filter...
> 
> Edward
> 
> At 11:16 AM 2/16/2006, Chad Berkley wrote:
> 
>> I've got the relation objects, but what I'm trying to get at is the 
>> <link> moml elements.  When I call exportMoML() on a 
>> ComponentRelation, I get something like this:
>> <relation name="relation" class="ptolemy.actor.TypedIORelation">
>>
>> I want that but also the <link> elements that tell what the relation 
>> is linked to.  Do I have to go through the port list to get these?  
>> How do I get the links to serialize.
>>
>> thanks,
>> chad
>>
>> Edward A. Lee wrote:
>>
>>> Links are not objects in the Ptolemy II abstract syntax.
>>> Relations are objects...
>>> Relations contain a list of references to ports that they
>>> are linked to, and the ports contain a list of the relations
>>> that they are linked to.
>>> Edward
>>> At 02:25 PM 2/15/2006, Chad Berkley wrote:
>>>
>>>> Hi,
>>>>
>>>> I'm trying to find a programatic way to access the links that are
>>>> contained in a composite.  The only method I see that kind of does this
>>>> is CompositeEntity.exportLinks() which just returns a string moml
>>>> description of the links, but no objects.  Is there a way to get an
>>>> object representation of links?
>>>>
>>>> thanks,
>>>> chad
>>>> _______________________________________________
>>>> Kepler-dev mailing list
>>>> Kepler-dev at ecoinformatics.org
>>>> http://mercury.nceas.ucsb.edu/ecoinformatics/mailman/listinfo/kepler-dev 
>>>>
>>>
>>>
>>> ------------
>>> Edward A. Lee
>>> Professor, Chair of the EE Division, Associate Chair of EECS
>>> 231 Cory Hall, UC Berkeley, Berkeley, CA 94720
>>> phone: 510-642-0253 or 510-642-0455, fax: 510-642-2845
>>> eal at eecs.Berkeley.EDU, http://ptolemy.eecs.berkeley.edu/~eal
>>> ---------------------------------------------------------------------------- 
>>>
>>> Posted to the ptolemy-hackers mailing list.  Please send administrative
>>> mail for this list to: ptolemy-hackers-request at ptolemy.eecs.berkeley.edu
> 
> 
> ------------
> Edward A. Lee
> Professor, Chair of the EE Division, Associate Chair of EECS
> 231 Cory Hall, UC Berkeley, Berkeley, CA 94720
> phone: 510-642-0253 or 510-642-0455, fax: 510-642-2845
> eal at eecs.Berkeley.EDU, http://ptolemy.eecs.berkeley.edu/~eal