Re: [henshin-dev] Proposal to remove direct creation of edges

[Riegerf@xxxxxxxxxxxxxxxxxxxxxxx]

Hi Gregor,

Quoting Gregor Bonifer <gregor.bonifer@xxxxxx>:
> If an edge is created directly in a graph it has neither source nor  
> target. Therefore identifying the dependent edges of a kernel edge  
> becomes kind of a guessing game.

Is this a problem? I.e. will verifying the model create an error if  
edges are not set correctly by the user or will the interpreter just  
(mysteriously) not work correctly (although the model passed the  
verification)?

> I would like to exclude edges from the "Create Child" and "Create  
> Sibling" menu. Edges should always be created by commands which  
> imply setting the source and target references [...]
> Are there any objections?

I strongly object; removing functionality is not a good idea at all,  
especially when it comes to these rather primitive operations. I can  
imagine situations where one might to create an edge before its target  
Node is created, which would be made impossible.
Of course, the user will have a more comfortable editing experience  
without needing to specify additional information if she chooses the  
advanced editing functions.

Felix