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emf basic undoable command for stereotypes? [message #380005]

Sun, 15 March 2009 11:55

Sorin Fagateanu

Messages: 46
Registered: July 2009

Member

Hello,

I am having problems finding some answers...

For example I am taking an object A, applying a stereotype X to it and I
am setting the property alfa of stereotype X to the value b ,these being
done with the following:
1. A.applyStereotype(X);
2. A.setValue(X,afla,b);

1. EObject Element.applyStereotype(Stereotype stereotype)
2. void Element.setValue(Stereotype stereotype,String propertyName,Object
newValue)

My scope is to create a command to be undoable(to restore de old value of
alfa and to unapply X).

Is it possible to apply/unapply a stereotype to an element and set the
value of a property of a stereotype throught basic emf commands or will I
need to write my own for this?

Thank you in advance,
Sorin.

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Re: emf basic undoable command for stereotypes? [message #380006 is a reply to message #380005]

Mon, 16 March 2009 14:27

Kenn Hussey

Messages: 1620
Registered: July 2009

Senior Member

Sorin,

If the reason you are using commands is primarily because you want undoable
operations, I'd recommend using a ChangeCommand (from
org.eclipse.emf.edit.command). EMF provides commands for all basic
operations, but UML2 does not provide undoable commands for stererotype
operations. The nice thing about ChangeCommand (see the sample actions in
UML2 for examples) is that you can undo/redo any operation on EMF-based
objects based on event notifications.

Kenn

"Sorin Fagateanu" <cyron_16@yahoo.com> wrote in message
news:d7c6d10bcad2be4783ff6a5884b7d8ee$1@www.eclipse.org...
> Hello,
>
> I am having problems finding some answers...
>
> For example I am taking an object A, applying a stereotype X to it and I
> am setting the property alfa of stereotype X to the value b ,these being
> done with the following:
> 1. A.applyStereotype(X);
> 2. A.setValue(X,afla,b);
>
> 1. EObject Element.applyStereotype(Stereotype stereotype) 2. void
> Element.setValue(Stereotype stereotype,String propertyName,Object
> newValue)
>
> My scope is to create a command to be undoable(to restore de old value of
> alfa and to unapply X).
>
> Is it possible to apply/unapply a stereotype to an element and set the
> value of a property of a stereotype throught basic emf commands or will I
> need to write my own for this?
>
> Thank you in advance,
> Sorin.
>
>

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