Issue 4560: how to add new topological entities to existing model with sharing of exist                                                                                                                             (cad-ftf)
Source: Open CASCADE (Mr. Mikhail Kazakov, m-kazakov@opencascade.com, m-kazakov@eads.matradatavision.com)
Nature: Uncategorized Issue
Severity: 
Summary: 3. It is not clearly described in the specification document, how to add new topological entities to existing model with sharing of existing entities. 
Let's say we have 2 vertexes already created and we would like to add an edge. 
While implementing EntityFactory interface, a developer have to care about this sharing. Otherwise vertexes won't be shared. 
And from my point of view we have to speak about that in the document. 

Resolution: see above
Revised Text: A note was added to section 2.2.4 to support this capability.
Actions taken:
September 5, 2001: received issue
July 5, 2002: closed issue
Discussion: 
Vendors may implement the CadMain::EntityFactory to allow Unique IDs (available from the CadFoundation::Entity interface) to be input in place of the index values returned from the creation operations in the CadMain::EntityFactory interface.
End of Annotations:=====
Date: Wed, 05 Sep 2001 13:13:07 +0200
From: "Mikhail KAZAKOV (mko)" <m-kazakov@paris1.matra-dtv.fr>
Organization: Matra Datavision
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To: "jcad_services@yahoogroups.com" <jcad_services@yahoogroups.com>,
   cad ftf <cad-ftf@emerald.omg.org>
Subject: New issues to resolve
References: <5.1.0.14.2.20010829112031.03733d48@popserve.grc.nasa.gov>
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                Dear colleagues, 

I've just returned from vacation (thus sorry for silence) 
and I would like to give some new issues according our spec. to
resolve: 


3. It is not clearly described in the specification document, how to
   add new topological entities to existing model with sharing of
   existing entities. 
Let's say we have 2 vertexes already created and we would like to add
   an edge. 
While implementing EntityFactory interface, a developer have to care
   about this sharing. Otherwise vertexes won't be shared. 
And from my point of view we have to speak about that in the
   document. 

Date: Thu, 20 Sep 2001 20:09:53 +0200
From: "Mikhail KAZAKOV (mko)" <m-kazakov@paris1.matra-dtv.fr>
Organization: Matra Datavision
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To: cad ftf <cad-ftf@emerald.omg.org>,
   "jcad_services@yahoogroups.com" <jcad_services@yahoogroups.com>
Subject: Proposals for issues resolution
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        Dear colleagues, 

I'd like to propose some possible ways to resolve next issues: 


Issue 4560. "It is not clearly described in the specification
document, how to add new topological entities to existing model with
sharing of existing entities" 

Possible resolutions: 
It's necessary to describe in the documentation, that developer have
to care about sharing of entities, by searching of any transient ID
passed to EntityFactory in the current model.