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How to import a library [message #1784096]

Thu, 22 March 2018 13:01

Francesco Bedini

Messages: 32
Registered: March 2018

Member

I have this content in eDSPNConstructors().qvto

modeltype EDSPN "strict" uses eDSPN(".../eDSPN");

library eDSPNConstructors(){

property randomSequence:Sequence(Integer) = Sequence{1,2,3,4,5,6,7,8,9};

/** Constructors **/
constructor Label::Label(given_text : String) {
   ...
}
}

Then in another file:

modeltype UML "strict" uses uml("http://www.eclipse.org/uml2/5.0.0/UML");
modeltype EDSPN "strict" uses eDSPN(".../eDSPN");

transformation AS2UPetriNetTransformation(in uml:UML, out net:EDSPN) extends library eDSPNConstructors();

I get the error: "Can't resolve module reference 'eDSPNConstructors'"
The file are both located into a "transforms" folder that is set as the QVT source container in the QVT Settings.

I also tried:

extends eDSPNConstructors();

Any idea? Does it make any sense to divide the helpers, query and constructors in different files?

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Re: How to import a library [message #1784099 is a reply to message #1784096]

Thu, 22 March 2018 14:17

Ed Willink

Messages: 7669
Registered: July 2009

Senior Member

HI

I'm afraid that I have never used the library construct, but the QVTo JUnit tests have many examples of the form:

library SomeName;

The spec references as "extends SomeName" rather than your "extends library SomeName".

If you have many helpers, query and constructors separate files might be appropriate, but I would tend to modularize by partial model rather than implementation functionality.

Regards

Ed Willink

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Re: How to import a library [message #1784202 is a reply to message #1784099]

Fri, 23 March 2018 13:45

Francesco Bedini

Messages: 32
Registered: March 2018

Member

I've found my problem, the

import libraryName;

at the beginning of the file using the library was missing.

Then the extends can be either with or without library.

Thanks for your help, to the next undocumented feature :)

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Re: How to import a library [message #1784210 is a reply to message #1784202]

Fri, 23 March 2018 14:26

Ed Willink

Messages: 7669
Registered: July 2009

Senior Member

No Message Body

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Re: How to import a library [message #1784212 is a reply to message #1784210]

Fri, 23 March 2018 14:28

Ed Willink

Messages: 7669
Registered: July 2009

Senior Member

Hi

So the "Can't resolve module reference 'eDSPNConstructors'" was 100% accurate.

You need to post fuller repros to avoid answers going off at a tangent.

Regards

Ed Willink

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