Question about Sirius usage

[phamvietquang123]

Hi i am a beginner using Sirius Eclipse and am using this as my metamodel

In Sirius i have to create an activityedge node to connect from source node to target node. Is there an option to directly connect the source node to the target node without including an activity edge node?"

[GlennPlou]

Hi,

I'm not sure I understand what you're trying to do: are you trying to reproduce the UML Activity metamodel with Ecore? Are you manipulating mappings in the .odesign file?

Regards,
Glenn

[phamvietquang123]

I want to manipulating mappings in the .odesign file. i have a part of a model like this

Currently, when I visualize it using Sirius, it is displayed like this:

However, I want to connect directly from 'Handle Order' to 'CustOrder' without going through the 'Edge' node."

[GlennPlou]

The "ActivityEdge" type you want to represent should be an Edge Mapping in the odesign. So you need to determine whether it's an "Element based edge" or a "Relation based edge": here, the edge shouldn't represent a relation (incoming, outgoing, source, target...) but directly a semantic element, so you need to use an "Element based edge" mapping that represents "ActivityEdge" type elements.

I've attached a screenshot of a draft I made to help you. Note that I've included the ActivityNode mapping for source and target, but I think ActivityNode should be an abstract type and doesn't necessarily need a representation. You'll need to represent all concrete types (ForkNode, JoinNode, ...), and add their mappings to ActivityEdgeMapping's "Source Mapping" and "Target Mapping".

For the Source Finder Expression, use the self.source reference if possible, otherwise the self.getSource() method if available. Ditto for the Target Finder Expression, self.target or self.getTarget().

[phamvietquang123]

Thanks, it works as expected. I have another question: I have an AQL query: aql: self.node->reject(e | e.oclIsKindOf(agl::ControlNode)) which I use in Sirius to create nodes that are not control nodes. Initially, it works, but after some time, this error appears:

However, when I use the Sirius interpreter, the query works with my model. Here is my Ecore metamodel:
mosa.zip

[GlennPlou]

The "->" operator can only be used on collections, the notation of the node reference may be misleading (use "nodes" in plural if it's [0...*] ?).
When using nested EPackages (mosa > agl > ControlNode), the syntax for referring to type like agl::ControlNode may be different, in which case I don't know what the "recommended" syntax is in such cases (but if I remember correctly, it should work).

Try maybe something like aql:self.node->excludesAll(self.node->filter(agl::ControlNode))

Otherwise, there is a lot of aql examples here: https://eclipse.dev/acceleo/documentation/aql.html

[phamvietquang123]

it still does not work but thanks.