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[Eugenia] Execute code when property of a node is changed [message #766890]

Fri, 16 December 2011 15:51

Snakebyte Missing name

Messages: 130
Registered: November 2011

Senior Member

Hello.
I got the following node in emf.

@gmf.node(label="identifier", border.width="1",border.color="0,0,0",size="130,50",label.icon="false",figure="rectangle")
class AwayGoal extends StandardNode 
{
   ref Goal [1] ReferencedGoal;
   attr String AwayGoalModuleIdentifier; 
}

Everything works great for now.
I want to change the attribute now when the Goal is changed.

Are there any listeners ?
So my problem is that i want to execute some code when the value Goal is changed.

Can somebody give me an example on how to do that ?

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Re: [Eugenia] Execute code when property of a node is changed [message #766914 is a reply to message #766890]

Fri, 16 December 2011 16:34

Paulo Alexandre

Messages: 17
Registered: November 2011

Junior Member

I was wondering this exactly today...but i think this is a GMF question...maybe, you could take a look at this http://www.eclipse.org/forums/index.php/t/205807/

[Updated on: Fri, 16 December 2011 16:38]

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Re: [Eugenia] Execute code when property of a node is changed [message #767303 is a reply to message #766914]

Sat, 17 December 2011 15:57

Snakebyte Missing name

Messages: 130
Registered: November 2011

Senior Member

As i think, this is only related to the selection in Canvas.
It wont be triggered when the attribute of a node changes, or not ?

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Re: [Eugenia] Execute code when property of a node is changed [message #767311 is a reply to message #767303]

Sat, 17 December 2011 16:30

Dimitris Kolovos

Messages: 2163
Registered: July 2009
Location: York, UK

Senior Member

I believe you should modify the setReferencedGoal() method of AwayGoalImpl in your EMF plugin (don't forget to also change it to @Generated NOT so that it doesn't get overwritten by EMF).

Cheers,
Dimitris

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Re: [Eugenia] Execute code when property of a node is changed [message #767333 is a reply to message #767311]

Sat, 17 December 2011 17:59

Snakebyte Missing name

Messages: 130
Registered: November 2011

Senior Member

This seems to be a good idea.
But if i now change the attribute in the referenced Object, this wont be updated.
Then i also have to edit the setIdentifier Method of the referenced Object.

This solutions seems to be very very dirty.
Can i also implement a changeListener to these objects ?

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Re: [Eugenia] Execute code when property of a node is changed [message #767343 is a reply to message #767333]

Sat, 17 December 2011 18:33

Snakebyte Missing name

Messages: 130
Registered: November 2011

Senior Member

Ok i works when i do it like this.
But still i think it is very dirty.
Can i implement a ChangeListener listening to changes on an attribute as well ?

Can somebody give me an example ?

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