[news.eclipse.modeling.gmf] Re: How I can create connections programmati

[Cherie Revells <crevells@xxxxxxxxxx>]

Steffen,

I think you are making it more complicated that it needs to be.  If you 
are creating a connection based on an element type and not the actual 
element, it should be as simple as doing this:

Command cmd = 
CreateConnectionViewAndElementRequest.getCreateCommand(type, 
sourceEditPart, targetEditPart, getDiagramPreferencesHint());

If you don't have the source and target editparts at this time because 
you want everything to be created in one command, then you can use the 
DeferredCreateConnectionViewAndElementCommand which takes adapters for 
the source and target that will adapt to the newly created source and/or 
target views at command execution time.

I hope this helps.

- Cherie



Steffen Mertens wrote:
> Hi,
> I have the following problem. If I change the type of a function block 
> (node), then I would like to insert further function blocks automatically 
> and connect these new functions blocks with connecting lines between the 
> function blocks.
> The creation of funktions blocks is simple and works well.
> I would like to connect the nodes with each other and use for it 
> CreateConnectionViewAndElementRequest.
>
> CreateConnectionViewAndElementRequest.ConnectionViewAndElementDescriptor 
> descriptor = new 
> CreateConnectionViewAndElementRequest.ConnectionViewAndElementDescriptor(new 
> CreateElementRequestAdapter(new CreateElementRequest(type)),((IHintedType) 
> type).getSemanticHint(), getDiagramPreferencesHint());
> CreateConnectionViewAndElementRequest request = new 
> CreateConnectionViewAndElementRequest(descriptor);
> Command cmd = 
> request.getCreateCommand(request,OutputEditPart,InputEditPart);
> executeCommand(cmd);
>
> Unfortunately, this doesn't work. Am I on the wrong way? Can anybody help 
> me?
> Thank you!
> Steffen