Pierre,
Comments below.
On 04/10/2013 12:49 PM, GAUFILLET, PIERRE wrote:
Hello PMC!
As some of you already know, the members of TOPCASED are gradually migrating components to Eclipse / PolarSys projects.
Yes, that's great!
In this context, I am currently considering the case of our cross-ref view (see https://polarsys.org/wiki/index.php/PolarSys_Improvements/TOPCASED_facilities for information about this functionality),
The wiki doesn't provide any architectural details about the source code. Just a comment about "This code derives from Ecore Tools, but works for any EMF model" so I'm not sure about the details of the actual code dependencies; if the dependencies are something other than purely the EMF Core SDK, then it's not a good fit for the Core SDK, though potentially could still be in a separate SDK-like feature, much as Xcore is in a separate feature that has Xtext dependencies...
[PGa] Right. Here is the list of dependencies:
org.eclipse.core.runtime
org.eclipse.emf.ecore.edit
org.eclipse.emf.edit.ui
It exports an extension point in which you can contribute specific behavior for given editors (GMF, Papyrus, etc.) and cross-ref filters matching specific meta-models (UML, ecore, etc.). I expect to contribute at least a extension plug-in for GMF for now.
and wonder what is the most appropriate project for hosting it. At first sight, reasonable choices may be:
- EMF, as this view works for any EMF model
Yes, though it depends a little bit on how general this is as well as the dependencies. I imagine you can't do an effective search without some kind of indexing strategy and when it comes to indexing I am concerned about the the extent to which there might end up being different indexing strategies. At one point there was discussion between the itemis Xtext folks and the SAP Query2 folks, but that never went anywhere and the Query2 guys went AWOL. Certainly Xtext relies heavily on indexing and has mature technology that performs well...
[PGa] The view relies exclusively on the ECrossReferencerAdapter for indexing.
- Sphinx, as it can be considered as a basic UI component for building modelling workbenchs
Sphinx would appear to be quite a nature fit. I'm not sure the extent to which Sphinx is decomposed into well modularized small features that allow individual capabilities to be used without pulling in too many things that might not be used...
- Other modelling infrastructure projects like EEF or Amalgam
So is it primary a UI thing or is there underlying searching/indexing technology involved as well?
[PGa] Definitely UI.
What do you think about it?
That depends on the details. Of course I'm generally reluctant to take on yet more support burden for a component that's ubiquitously taken for granted...
Pierre GAUFILLET
Software Engineering Specialist
Avionics and Simulation Products Software - EYYW
AIRBUS
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Polarsys Industrial Working Group: http://www.polarsys.org
TOPCASED: http://www.topcased.org
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