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Problem with Child and Parent Elements in resulting XMI File [message #1824343]

Tue, 14 April 2020 07:30

Andreas Bäuerle

Messages: 11
Registered: April 2020

Junior Member

Good Morning.

I am still working on my transformation, and came up to a new problem. I am transforming a Model into another target Model using ATL. The target model however does not show the parent child structure I wish for.

For example:
Wish:
<Model name="bla">
<packagedElement name="bla"/>
</Model>

Is:
<Model name="bla"/>
<packagedElement name="bla"/>

I'm not sure what I am doing wrong. I'm still learning...

Is this a problem in the .atl file or in the meta model?

ATL code:

rule trace2Model {
from
s : TDT!trace
to
t : SD!Model (
name <- 'bla'
)
}

rule system2packagedElement {
from
s : TDT!system
to
t : SD!packagedElement (
name <- 'bla'
)
}

The metamodel consists of two elements the Model and the packaged Element. Both have a attribute and the reference to each other. I adjusted the Container and Containment property.

Any help is appreciated. Thank you!

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Re: Problem with Child and Parent Elements in resulting XMI File [message #1826233 is a reply to message #1824343]

Tue, 21 April 2020 15:47

Andon¡ Reteg¡

Messages: 4
Registered: February 2020

Junior Member

Hi Andreas,

In my case, I'm working on a UML2UML refining transformation but I solved this problem by adding the reference of the packagedElement into the Model element transformation.

My Model transformation looks like this in order to have the packageElement inside:

rule modelCopy{
from m_in: Input!Model
to x: Output!Model (
name <- m_in.name,
packagedElement <- m_in.packagedElement
)
}
-----------------------------------------------------------

Im not sure how it would look for your ATL code, but you could try something like this :

rule trace2Model {
from
s : TDT!trace
to
t : SD!Model (
name <- 'bla',
packagedElement <-'bla'
)
}

rule system2packagedElement {
from
s : TDT!system
to
t : SD!packagedElement (
name <- 'bla'
)
}

-------------------------------------

Hope that works!

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