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Problem with creating instances [message #638514]

Thu, 11 November 2010 09:47

No real name
Messages: 1
Registered: November 2010

Junior Member

Hi,
I am trying to create instances of classes of the model I use.

texttransformation GenerateObjects (in
mdl:"http://www.eclipse.org/uml2/3.0.0/UML",
out uml:"http://www.eclipse.org/uml2/3.0./UML"(uml.Model)) {

mdl.Class::main () {
var obj : uml.InstanceSpecification =
new uml.InstanceSpecification(classifier=self)
// | what goes here?
}
}

I don't want to clone objects. I would like to create instances from scratch.
Any ideas or pointers to documentation (the user guide is not helpful in this respect).

Thanks,

Robert Amthor

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Re: Problem with creating instances [message #639889 is a reply to message #638514]

Thu, 18 November 2010 04:44

Gøran K. Olsen
Messages: 184
Registered: July 2009

Senior Member

Hi Robert,

from what I can see in your example you are taking a uml model containing
classes as input and then you want to create instances of the classes.

In your out model example I can not see any uml.Model/uml.Package etc.

You will have to investigate the uml metamodel to see how
uml.InstanceSpecifications are stored. You need to contain them, similar to
for example uml.Properties that are contained by a class.
aClass.ownedAttributes.

A good start is to manually create an example model in uml (e.g. use the
tree editor) with similar structure as your output, then it will be easier
to see what you need to create and how the structure should be to make the
model "valid".

Cheers,
G

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