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(eObject instanceof Element) in destroy() method [message #628011]

Wed, 28 October 2009 17:56

Eclipse User

I was looking at the code of the destroy() method in ElementOperations class and found the the following:

if (eObject instanceof Element) {
destroyAll(((Element) eObject).getStereotypeApplications());
}

I was wondering in what cases we could be destroying an object that is not an instance of Element. I understand that the destroy method is defined in the class Element and the rest of the classes inherit the method from it. Or isn't that the case?

I would appreciate some comments. Thanks.

Hector

Re: (eObject instanceof Element) in destroy() method [message #628012 is a reply to message #628011]

Thu, 29 October 2009 02:50

Eclipse User

Hector,

An Element can contain EAnnotations which are not Elements.

Hector M Chavez wrote:
> I was looking at the code of the destroy() method in ElementOperations
> class and found the the following:
>
> if (eObject instanceof Element) {
> destroyAll(((Element) eObject).getStereotypeApplications());
> }
>
> I was wondering in what cases we could be destroying an object that is
> not an instance of Element. I understand that the destroy method is
> defined in the class Element and the rest of the classes inherit the
> method from it. Or isn't that the case?
>
> I would appreciate some comments. Thanks.
>
> Hector
>
>

Re: (eObject instanceof Element) in destroy() method [message #628016 is a reply to message #628011]

Thu, 29 October 2009 11:04

Eclipse User

That version of destroy is also called from
unapplyAllNonApplicableStereotypes() to destroy stereotype applications
which are not Element(s) but rather, dynamic EObjects.

- James.

"Hector M Chavez" <hectormch@gmail.com> wrote in message
news:hcaema$lo6$1@build.eclipse.org...
>I was looking at the code of the destroy() method in ElementOperations
>class and found the the following:
>
> if (eObject instanceof Element) {
> destroyAll(((Element) eObject).getStereotypeApplications());
> }
>
> I was wondering in what cases we could be destroying an object that is not
> an instance of Element. I understand that the destroy method is defined in
> the class Element and the rest of the classes inherit the method from it.
> Or isn't that the case?
>
> I would appreciate some comments. Thanks.
>
> Hector
>
>

Re: (eObject instanceof Element) in destroy() method [message #628023 is a reply to message #628011]

Fri, 30 October 2009 13:51

Eclipse User

I appreciate your answers, I can see now the need for that condition in the destroy method. Thanks.

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