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Importing/referring model of different emf metamodal in default tree base editor [message #1862493]

Thu, 07 December 2023 12:29

Ehsan Ahmad

Messages: 37
Registered: April 2018

Member

Hi,
I have created an EMF metamodel for datatype so that the models (datatypes) of this metamodel can be referred/used in other models of different EMF metamodels.

Is it possible to make these datatypes available in default tree based editor?

How can I call them in my EOL programs?

Thank you.

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Re: Importing/referring model of different emf metamodal in default tree base editor [message #1862495 is a reply to message #1862493]

Thu, 07 December 2023 12:56

Dimitris Kolovos

Messages: 2165
Registered: July 2009
Location: York, UK

Senior Member

Hi Ehsan,

I'm not sure I understand the question. Could you please elaborate a bit more with references to specific files/artefacts?

Thanks,
Dimitris

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Re: Importing/referring model of different emf metamodal in default tree base editor [message #1862498 is a reply to message #1862495]

Thu, 07 December 2023 13:57

Ehsan Ahmad

Messages: 37
Registered: April 2018

Member

Hi Dimitris,
For example, I have an EMF model datatypes.emf

package datamodel;
class DataType{
val DataType1[*] dt1;
val DataType2 [*] dt2;
}

class DataType1{

} 

class DataType2{

}

I have created a model TimePeriod.model of datatypes.emf and a DataType Period in it.

Then, I have another EMF for my state transition modeling theory, statemachine.emf, in which I can import datatypes.emf. In this EMF attr sigma refers to datamodel.DataType.

package statemachine;
 import ".......datatypes.emf";

class StateMachine {
    val State[*] states;
    val  Transition[*] transitions;
}

class State{
  attr String name;
  ref  datamodel.DataType sigma;
} 

class Transition{
}

Now, in MySM.model of statemachine.emf, when creating a state I am expecting Period of TimePeriod.model to be available for selection. But the list is empty and nothing appears.

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Re: Importing/referring model of different emf metamodal in default tree base editor [message #1862499 is a reply to message #1862498]

Thu, 07 December 2023 14:09

Horacio Hoyos

Messages: 242
Registered: October 2009
Location: Mexico

Senior Member

Did you load your TimePeriod.model form your MySM.model editor?

You need to right click on a node in the MySM.model editor tree and select "Load resource...", which will let you select the TimePeriod.model.

Since EMF does not have the concept of "import", the "Load resource" action is intended to provide the funcionality.

Horacio Hoyos Rodriguez
Kinori Tech
Need professional support for Epsilon, EMF?
Go to: https://kinori.tech

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Re: Importing/referring model of different emf metamodal in default tree base editor [message #1862504 is a reply to message #1862499]

Thu, 07 December 2023 16:10

Ehsan Ahmad

Messages: 37
Registered: April 2018

Member

Dear Horacio,
Yes. It worked.
I was trying to load the metamodel resource (datatypes.emf in this case) instead of the model resource.

Thanks very much.

Ehsan

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Re: Importing/referring model of different emf metamodal in default tree base editor [message #1862517 is a reply to message #1862498]

Fri, 08 December 2023 14:39

Ehsan Ahmad

Messages: 37
Registered: April 2018

Member

Hi Horacio,
A followup question. The Load Resource does not work sometimes. Although, the referred object entry is there in the XML file <primitiveType href="Iso_Types/Iso_Types.model#_GJvm4JVAEe62ZNGb2OJB2Q"/> but it does not show up in the Tree editor.

I am using Eclipse 2023, 06 with macOS Sonoma 14.1.2 (23B92) on MacBook Air M1.

Any Hint?

Thanks,

Ehsan

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Re: Importing/referring model of different emf metamodal in default tree base editor [message #1862518 is a reply to message #1862517]

Fri, 08 December 2023 14:45

Dimitris Kolovos

Messages: 2165
Registered: July 2009
Location: York, UK

Senior Member

Hi Ehsan,

Does clicking on the Exeed -> Show Additional Resources menu do the trick?

Thanks,
Dimitris

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Re: Importing/referring model of different emf metamodal in default tree base editor [message #1862519 is a reply to message #1862518]

Fri, 08 December 2023 15:30

Ehsan Ahmad

Messages: 37
Registered: April 2018

Member

Hi Dimitris,
It shows the additional resources in Tree Editor but still does not show any referred object in the Properties view.

Please see the attached screenshot.

Thanks
Ehsan

Attachment: Screenshot 1445-05-24 at 6.12.40 PM.png
(Size: 281.60KB, Downloaded 23 times)

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Re: Importing/referring model of different emf metamodal in default tree base editor [message #1862520 is a reply to message #1862519]

Fri, 08 December 2023 15:38

Dimitris Kolovos

Messages: 2165
Registered: July 2009
Location: York, UK

Senior Member

Could you please share a minimal example we can use to reproduce this?

Thanks,
Dimitris

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Re: Importing/referring model of different emf metamodal in default tree base editor [message #1862523 is a reply to message #1862520]

Fri, 08 December 2023 16:24

Ehsan Ahmad

Messages: 37
Registered: April 2018

Member

Dimitris,
Please find the attached minimal example. Please note that;

- Folder metamodels has EMF and ECORE metamodels for both DataType and StateMachine

- Folder models has two models MyDataType.model and MyStateMachine.model.

- The aim is to use data types defined in MyDataType.model in MyStateMachine.model.

- I am using Eclipse IDE for Java Developers. Version: 2023-06 (4.28.0), Build id: 20230608-1333

Thanks,

Ehsan

Attachment: StateMachine_DataType.zip
(Size: 13.60KB, Downloaded 63 times)

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Re: Importing/referring model of different emf metamodal in default tree base editor [message #1862526 is a reply to message #1862523]

Fri, 08 December 2023 20:14

Dimitris Kolovos

Messages: 2165
Registered: July 2009
Location: York, UK

Senior Member

Hi Ehsan,

My advice would be to give your metamodels URI-like namespace URIs (e.g. http://dev.datatype) and then import the datatype metamodel from the statemachine metamodel using its namespace URI (as opposed to its Ecore file). To do this you will first need to right-click on DataType.ecore and select "Register EPackages". Once you have also registered StateMachine.ecore in the same way, you should be able to open MyStateMachine model with no issues (see attached).

Thanks,
Dimitris

Attachment: statemachine-datatype.zip
(Size: 3.38KB, Downloaded 37 times)

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Re: Importing/referring model of different emf metamodal in default tree base editor [message #1862539 is a reply to message #1862526]

Sun, 10 December 2023 15:40

Ehsan Ahmad

Messages: 37
Registered: April 2018

Member

Thank you the advise Dimitris. The resources are loaded appropriately now.
Btw, why importing namespace URI works fine as opposed to its Ecore file.

Thanks,
Ehsan

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