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How to create and excute a command manually [message #552948]

Sun, 15 August 2010 03:05

Yu Sun

Messages: 58
Registered: July 2009

Member

Hi guys,

Could you please give me some hints on how to create and execute a command manually?

At a certain moment, I want to add some elements to my model by programming in the GMF editor. However, if I simply use the generated EMF APIs, the diagram cannot be updated accordingly (the new elements are added in the EMF model, but cannot be displayed in the diagram).

I checked some threads, and it seems that I can manually create a command and execute it by using getCommandStack or getDiagramCommandStack, in order to update and refresh the diagram automatically.

But I am not sure how to do this. Could you please give me some directions?

Thanks a lot.

Yu

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Re: How to create and excute a command manually [message #553071 is a reply to message #552948]

Mon, 16 August 2010 10:27

emil salageanu

Messages: 94
Registered: June 2010
Location: Nice, France

Member

Hi Yu,

You can create and execute, for instance, a "set" command like this:

EObject model = .....; 

TransactionalEditingDomain ted =  TransactionUtil.getEditingDomain(model);

Command setVariable = SetCommand.create(
							ted, model,
							XXXPackage.Literals.NAME_OF_FEATURE_MODIFY, newValue);

ted.getCommandStack().execute(setVariable);

Cheers,
Emil

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