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Adding new Node in the StructureViewer [message #1766580]

Fri, 23 June 2017 05:28

Eclipse User

Hello All,

I have a question related to StructureViewer
I am trying to compare 2 EMF models which is working fine but I need to customize the display of Difference in StructureViewer.

Is it possible to add a New Node in the Structure Viewer display and club certain Diff Nodes under this new Node?

As per documentation I think I IDifferenceGroupExtender should help but I am not able to find any suitable example or reference.

Is there any way to achieve this? If yes then can you please point to some reference examples if possible .

Thanks, in Advance
Roopesh

Re: Adding new Node in the StructureViewer [message #1767008 is a reply to message #1766580]

Thu, 29 June 2017 09:23

Eclipse User

Hi Roopesh,

It is possible to do, but if what you're trying to achieve is grouping differences together, do you really want to do it only on the UI side (i.e. with no impact to the merging at all)? You might want to look at how to refine the differences to group them semantically instead. You could for example add a "refining" difference that would tie together a group of semantically dependant differences (see the "refinedBy" and "refines" references in the documentation).

If you really only want a UI grouping, you'll need to look at how we've implemented them in the UI. You'll want to look at the javadoc of org.eclipse.emf.compare.rcp.ui.structuremergeviewer.filters.AbstractDifferenceFilter and its inheriting classes.

Laurent Goubet
Obeo

Re: Adding new Node in the StructureViewer [message #1767175 is a reply to message #1767008]

Mon, 03 July 2017 04:27

Eclipse User

Hello Obeo,

Thanks for your reply.
Yes, I am only looking for UI customization and not Merging.

I want to Group Differences based on (specific) Object Types by creating a new Root Node and then put all relevant differences as separate Nodes under this Root node.

I am looking into the AbstractDifferenceFilter and its Inherrited classes as per your recommendation.

thanks.
Roopesh

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