Eclipse Community Forums: Sirius » AQL problem in "includes"/"excludes" functions?

Help

Home

Home » Eclipse Projects » Sirius » AQL problem in "includes"/"excludes" functions?

Show: Today's Messages :: Show Polls :: Message Navigator

AQL problem in "includes"/"excludes" functions? [message #1823276]

Tue, 24 March 2020 09:51

Avi Shaked

Messages: 122
Registered: October 2019

Senior Member

Hi,

I suspect there is a bug in the "excludes"/"includes" function.

I would have imagined that if I choose a model element and apply:
aql: self. ancestors()->includes(self.ancestors())
this would result in "true".
However, it results in "false."
The same logic applies to .excludes(), with similar opposite result.

I used the above query only for demonstration, but I keep getting same opposite logic in similar less trivial implementations.
My real purpose was to find whether an object that an edge points to as source (self.source in my implementation) is a child of the target (self.target). I use:
aql: self.source.ancestors()->includes(self.target)
and keep getting "false" when the source is indeed an element contained within target.

Can you enlighten me? What am I doing wrong?

Report message to a moderator

Re: AQL problem in "includes"/"excludes" functions? [message #1823277 is a reply to message #1823276]

Tue, 24 March 2020 10:12

Yvan Lussaud

Messages: 59
Registered: July 2009

Member

The service is applied on a collection and take an element as the parameter. Here you are passing a collection of elements and this collection is not in the receiver so it return false. What you want to do is probably something like:

aql:self. ancestors()->includes(self.ancestors()->first())

or

aql:self. ancestors()->includesAll(self.ancestors())

In this case you don't have any error because testing the presence of a collection into an other one is also a valid use case.

Report message to a moderator