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Problems migrating GEF application to e4 [message #754971]

Sun, 06 November 2011 02:22

Eclipse User

Hello,

I am trying to migrate an RCP application that is using EMF and GEF to e4 (Eclipse 4.1.1).
I realized that GEF has a dependency to org.eclipse.ui.workbench, bundle-version="[3.2.0,4.0.0)", preventing it to be used without the compatibility layer.

The problem is I don't know how to make the GEF part use the compatibility layer and the other views, such as the EMF model tree and property view, to be normal e4 parts.
Is it even possible? Will I face limitations in how the views can communicate using the selection service, etc.

Thanks in advance for any help,

Anders

Re: Problems migrating GEF application to e4 [message #755237 is a reply to message #754971]

Mon, 07 November 2011 13:36

Eclipse User

the compat layer is somewhere around 3.100.0 or 3.200.0, we didn't bump it up to 4.0.0 because it doesn't break API (well, not really Smile

If you run on Eclipse SDK 4.1 or Eclipse SDK 4.2 (the milestone releases) you'll get the compatibility layer.

PW

Re: Problems migrating GEF application to e4 [message #755586 is a reply to message #755237]

Tue, 08 November 2011 16:12

Eclipse User

Ok, I tried adding my GEF editing view as a "part" in Application.e4xmi?
I got a NPE in "getSite()" and understand that the IEditorPart is not initialized correctly.

Can an editor/view that uses the compat layer coexist with "e4" parts defined in Application.e4xmi? And if so how do I declare that in the model?

Will things like old selection providers work seamlessly with the new selection service?

Thanks,

Anders

Re: Problems migrating GEF application to e4 [message #755728 is a reply to message #755586]

Wed, 09 November 2011 06:53

Eclipse User

If you want to use E3.x parts, you need to use the compatibility layer The E4AP is not in itself backwards compatible with the E3.x model.

Re: Problems migrating GEF application to e4 [message #755875 is a reply to message #755728]

Wed, 09 November 2011 17:43

Eclipse User

Ok, as I understand it I really have to use the compatibility layer to run my RCP 3.x application will all its' views and editor defined in plugin.xml.
It's a pity that GEF is not ported to e4, the remaining views would easily be portable to e4.

What limitations will I have running through the compatibility layer with respect to CSS styling, dependency injection, etc. ?

Re: Problems migrating GEF application to e4 [message #755907 is a reply to message #755875]

Thu, 10 November 2011 01:59

Eclipse User

Am 09.11.11 23:43, schrieb Anders Forsell:
> Ok, as I understand it I really have to use the compatibility layer to
> run my RCP 3.x application will all its' views and editor defined in
> plugin.xml.
> It's a pity that GEF is not ported to e4, the remaining views would
> easily be portable to e4.
>
> What limitations will I have running through the compatibility layer
> with respect to CSS styling, dependency injection, etc. ?
>

None really:
* CSS is equal to e4
* DI can be used with the e4 bridge
See
* http://tomsondev.bestsolution.at/category/eclipse/e4/
*
http://tomsondev.bestsolution.at/2011/06/10/how-to-apply-the-e4-programming-model-to-3-x/
*
http://tomsondev.bestsolution.at/2011/07/01/eclipse-4-1-run-your-3-x-rcp-in-4-1/

Tom

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