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GMF delete node problem [message #662920]

Fri, 01 April 2011 09:37

Eclipse User

Hello everyone,

I´m facing some problems here, this is what i want to do:

When I delete a node in the diagram I would like to save some data about it in a file (ID, Name etc...)

How can I get this data just before it is deleted and save it to the file?

Thanks in advance,

Joao

Re: GMF delete node problem [message #665580 is a reply to message #662920]

Fri, 15 April 2011 03:27

Eclipse User

Hello,

you should receive an event in the edit part of the parent node when you delete the node. Doesn't that event contain the information you need ?

cheers,

emil

Re: GMF delete node problem [message #665744 is a reply to message #665580]

Fri, 15 April 2011 13:12

Eclipse User

Hello Emil,

First of all thank you very much for your answer.

I don´t need this feature anymore in my project.

Yes, edit part receives an event but I believe that by that time the eobject instance doesn´t exists anymore.

Am I correct?

Joao

Re: GMF delete node problem [message #665931 is a reply to message #665744]

Mon, 18 April 2011 04:28

Eclipse User

I suppose you are, I'm not sure how much information can you find in the event object about the deleted object ... Smile

I actually thought about that when I wrote my message but I hoped that would give you a least a starting point Smile

cheers,
emil.

Re: GMF delete node problem [message #1058955 is a reply to message #665931]

Wed, 15 May 2013 19:23

Eclipse User

any solution ?

Re: GMF delete node problem [message #1060449 is a reply to message #1058955]

Fri, 24 May 2013 13:05

Eclipse User

Hi Bradai,

the generated DeleteElementAction abstracts from AbstractDeleteFromAction, that shows, how a DestroyElementRequest is used to create the appropriate command from the EditPart.
You could hook into this class to get the appropriate information prior to execution.
Another approach would be to get the latest command from the commandstack and take the information from there.

Regards
Thomas

[Updated on: Fri, 24 May 2013 13:06] by Moderator

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