Eclipse Community Forums: Epsilon » Call Java methods from GMF Editor (generated with eugenia)

Help

Home

Home » Modeling » Epsilon » Call Java methods from GMF Editor (generated with eugenia)

Show: Today's Messages :: Show Polls :: Message Navigator

Call Java methods from GMF Editor (generated with eugenia) [message #822546]

Fri, 16 March 2012 18:33

Robson Silva
Messages: 6
Registered: March 2012

Junior Member

Hello,

I've generated an editor for my metamodel with Eugenia and now I'm trying to find a way to execute a manually written code inserted in the automatic generated java implementation of "op1". I marked the implementation of "op1" as "generated NOT" and added a dummy, for example, system.out.println("anything"). How can I call the method "op1" while I'm running the generated GMF Editor?

@gmf.diagram
class ClTest {
val Comp[*] comps;

op void op1 (Comp c);
}

Thanks.

Report message to a moderator

Re: Call Java methods from GMF Editor (generated with eugenia) [message #822548 is a reply to message #822546]

Fri, 16 March 2012 19:38

Dimitris Kolovos
Messages: 372
Registered: July 2009

Senior Member

Hi,

You'll need to define an extension to the org.eclipse.ui.popupMenus extension point to do this. http://www.ibm.com/developerworks/opensource/tutorials/os-eclplgns/section4.html provides a good tutorial on this. You'll need to set objectClass to org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart instead of org.eclipse.core.resources.IFile, and then you can access the underlying EObject using resolveSemanticElement().

Hope this helps,
Dimitris

Report message to a moderator

Re: Call Java methods from GMF Editor (generated with eugenia) [message #826217 is a reply to message #822548]

Wed, 21 March 2012 16:23

Robson Silva
Messages: 6
Registered: March 2012

Junior Member

Dear Dimitrius,

Thank you for the answer.

Your suggestion seems to be very helpfull. But, I would like to know
whether there is any way to do this without creating a new plugin. Is it
possible to change one of the eclipse projects generated automatically by
EuGENia from the metamodel (showed below) to achieve this?

For example, eugenia generate a interface ClTest.java and an implementation
ClTestImpl.java for the class ClTest. In the interface, the method declaration
void op1 (Comp c); is created and in ClTestImpl.java an empty implementation
in created. I would like to put some code in this empty implementation and
somehow call this method in the generated GMF editor.

@gmf.diagram
class ClTest {
val Comp[*] comps;

op void op1 (Comp c);
}

Thanks for the help

Report message to a moderator

Re: Call Java methods from GMF Editor (generated with eugenia) [message #826776 is a reply to message #826217]

Thu, 22 March 2012 09:45

Dimitris Kolovos
Messages: 372
Registered: July 2009

Senior Member

Hi,

Unfortunately, Eugenia doesn't provide such a feature. As a matter of fact, Eugenia doesn't generate any code at all; it just produces the .gmfxxx models and then passes them on to GMF for the code generation step.

Another option would be to define your actions as EWL wizards. See http://www.eclipse.org/epsilon/cinema/player.php?screencast=GMFWizards2 for an example (note that in the current version of EWL, in the "Configure Wizards" step of the process you need to provide the nsURI of your Ecore metamodel instead of the extension).

Cheers,
Dimitris

Report message to a moderator

Re: Call Java methods from GMF Editor (generated with eugenia) [message #826779 is a reply to message #826776]

Thu, 22 March 2012 09:52

Dimitris Kolovos
Messages: 372
Registered: July 2009

Senior Member

I forgot to mention that an advantage of going with the EWL solution is that if your actions modify the underlying model, you get support for transactions (i.e. undo/redo) for free.

Cheers,
Dimitris

Report message to a moderator

Previous Topic:	[announcement] ACademics Modelling with Eclipse Workshop - ECMFA 2012
Next Topic:	Bug in org.eclipse.epsilon.evl.emf.validation

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Sun May 19 21:57:55 EDT 2013