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Programmatically sync EMF editors [message #1063583]

Thu, 13 June 2013 09:01

Eclipse User

Basically I have two EMF models and then a third which contains references to the first two.

When I select an element in the third (linked) one I'd like the relevant element in the others to be selected.

I'm using the Eclipse selection service and can get a reference to the selected object however when I try and use that to set the selection in the other editors (using the setSelectionToViewer method) it doesn't actually select anything.

Is there something I need to do to the object I'm getting from the linked editor to make the other editors recognise it (and have their selection work)? I would have thought it would recognise and select it automatically.

Thanks!

Re: Programmatically sync EMF editors [message #1063645 is a reply to message #1063583]

Thu, 13 June 2013 11:10

Eclipse User

Phillip,

Comments below.

On 13/06/2013 3:01 PM, Phillip Drew wrote:
> Basically I have two EMF models and then a third which contains
> references to the first two.
>
> When I select an element in the third (linked) one I'd like the
> relevant element in the others to be selected.
Are they all in one editor?
>
> I'm using the Eclipse selection service and can get a reference to the
> selected object however when I try and use that to set the selection
> in the other editors (using the setSelectionToViewer method) it
> doesn't actually select anything.
Each separate editor generally has its own local copy/representation of
the models.
>
> Is there something I need to do to the object I'm getting from the
> linked editor to make the other editors recognise it (and have their
> selection work)? I would have thought it would recognise and select it
> automatically.
Generated editors implement IEditingDomainProvider which allows you
access to the editing domain and thereby the resource set in that
editor. So a general approach would be to determine the object in the
first editor, use EcoreUtil.getURI(eObject) and use that URI in
ResourceSet.getEObject in the second editor; that gives corresponding
instance in that second editor and that's something you can select...
>
> Thanks!

Re: Programmatically sync EMF editors [message #1063738 is a reply to message #1063645]

Thu, 13 June 2013 20:12

Eclipse User

Does the second editor have an instance of its ResourceSet or do I need to make it?

Re: Programmatically sync EMF editors [message #1063758 is a reply to message #1063738]

Fri, 14 June 2013 02:43

Eclipse User

Phillip,

If you have an EObject, you can do eObject.eResource().getResourceSet()
so yes, if you have an EObject you most likely have a resource set as
well. Generated editors generally create their own resource set and you
need to use that one, so no, you don't need to create one.

On 14/06/2013 2:12 AM, Phillip Drew wrote:
> Does the second editor have an instance of its ResourceSet or do I
> need to make it?

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