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Precondition Expression and Edge creation [message #1773353]

Tue, 26 September 2017 17:23

Fy Za

Messages: 245
Registered: March 2010

Senior Member

Hi all,

I have a Relation Based Edge. It Target Finder Expression is

aql:self.source

I add a Precondition Expression to this Relation Based Edge to restrict some cases.

When, I try to draw a non-allowed Edge (as described in the precondition), the edge is not drawn. However, in the DSL model, the relation is established

source="//@tototo"

Any idea why this behavior occurs?

best,

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Re: Precondition Expression and Edge creation [message #1773368 is a reply to message #1773353]

Tue, 26 September 2017 21:40

Stéphane Thibaudeau

Messages: 9
Registered: November 2014

Junior Member

Hi,

I would say that your precondition restricts the edges that are displayed as I suppose that this precondition is on the edge mapping but that you did not restrict your edge creation tool.
So when you draw an edge, the tool is executed and the relation is added inside the model but this new relation is not visible because of your precondition.
You should customize your edge creation tool so that it is not possible for the user to draw such an edge.

Regards,
Stéphane

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