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EMF Proxy [message #941013]

Fri, 12 October 2012 02:25

Abhijeet Shankargouda is currently offline

Abhijeet Shankargouda
Messages: 40
Registered: January 2012

Member

Hello All,
There are two resource A and B created from same metamodel. There are few resources from A which refer to resource from B as string.How can I resolve this?. I think it can be handled through EMF proxy. If my understanding is right then can anyone please help me in solving this.

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Re: EMF Proxy [message #941066 is a reply to message #941013]

Fri, 12 October 2012 03:30

Ed Merks
Messages: 24557
Registered: July 2009

Senior Member

Abhijeet,

Comments below.

On 12/10/2012 8:25 AM, Abhijeet Shankargouda wrote:
> Hello All,
> There are two resource A and B created from same metamodel. There
> are few resources from A which refer to resource from B as string.
Can you give an example?
> How can I resolve this?. I think it can be handled through EMF proxy.
> If my understanding is right then can anyone please help me in solving
> this.

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Re: EMF Proxy [message #941149 is a reply to message #941066]

Fri, 12 October 2012 04:48

Abhijeet Shankargouda
Messages: 40
Registered: January 2012

Member

File 1 :
<library id ="a">
<book name="sample">
<author-ref ="bob" docref="b">
</book>
</library>

File 2 :
<library id ="b">
<author name="bob" age="21" language="english">
</author>
</library>

View : should be something like this
<library id="a">
<book name="sample">
<author name="bob" age="21" language="english">
</book>
<library>

Any changes made in view should reflect back the changes into respective files.

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Re: EMF Proxy [message #941170 is a reply to message #941149]

Fri, 12 October 2012 05:10

Ed Merks
Messages: 24557
Registered: July 2009

Senior Member

Do these references have to look like this?

On 12/10/2012 10:48 AM, Abhijeet Shankargouda wrote:
> File 1 :
> <library id ="a">
> <book name="sample">
> <author-ref ="bob" docref="b">
This isn't well formed XML
> </book>
> </library>
>
> File 2 :
> <library id ="b">
> <author name="bob" age="21" language="english">
> </author>
> </library>
>
> View : should be something like this
View?
> <library id="a">
> <book name="sample">
> <author name="bob" age="21" language="english">
> </book>
> <library>
>
> Any changes made in view should reflect back the changes into
> respective files.
>
>

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Re: EMF Proxy [message #941172 is a reply to message #941170]

Fri, 12 October 2012 05:14

Abhijeet Shankargouda
Messages: 40
Registered: January 2012

Member

yes, Is it possible?

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Re: EMF Proxy [message #941194 is a reply to message #941172]

Fri, 12 October 2012 05:33

Ed Merks
Messages: 24557
Registered: July 2009

Senior Member

So in the model you might define a transient volatile reference and
write logic to compute the referenced object from the attributes that
are present.

Do you have a model already?

On 12/10/2012 11:14 AM, Abhijeet Shankargouda wrote:
> yes, Is it possible?

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Re: EMF Proxy [message #941195 is a reply to message #941172]

Fri, 12 October 2012 05:36

Abhijeet Shankargouda
Messages: 40
Registered: January 2012

Member

Sorry Ed .. such view is not required . Actually I'm using metamodel for GEF. So for cross referencing of resource between documents is getting very difficult, if cross document referencing is resolved then it will be very helpful to me.

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Re: EMF Proxy [message #941197 is a reply to message #941195]

Fri, 12 October 2012 05:37

Abhijeet Shankargouda
Messages: 40
Registered: January 2012

Member

No Message Body

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Re: EMF Proxy [message #941198 is a reply to message #941197]

Fri, 12 October 2012 05:38

Abhijeet Shankargouda
Messages: 40
Registered: January 2012

Member

Yes I have the model.

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Re: EMF Proxy [message #941202 is a reply to message #941198]

Fri, 12 October 2012 05:40

Ed Merks
Messages: 24557
Registered: July 2009

Senior Member

And that model looks like?

On 12/10/2012 11:38 AM, Abhijeet Shankargouda wrote:
> Yes I have the model.

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Re: EMF Proxy [message #941233 is a reply to message #941202]

Fri, 12 October 2012 06:18

Abhijeet Shankargouda
Messages: 40
Registered: January 2012

Member

<?xml version="1.0" encoding="UTF-8"?>
<ecore:EPackage xmi:version="2.0"
xmlns:xmi="http://www.omg.org/XMI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore" name="library"
nsPrefix="library">
<eClassifiers xsi:type="ecore:EClass" name="library">
<eStructuralFeatures xsi:type="ecore:EReference" name="Book"/>
<eStructuralFeatures xsi:type="ecore:EReference" name="author" eType="#//author"/>
</eClassifiers>
<eClassifiers xsi:type="ecore:EClass" name="Book">
<eStructuralFeatures xsi:type="ecore:EAttribute" name="name" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
<eStructuralFeatures xsi:type="ecore:EReference" name="author-ref" eType="#//link"/>
</eClassifiers>
<eClassifiers xsi:type="ecore:EClass" name="link">
<eStructuralFeatures xsi:type="ecore:EAttribute" name="name" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
<eStructuralFeatures xsi:type="ecore:EAttribute" name="docref" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
</eClassifiers>
<eClassifiers xsi:type="ecore:EClass" name="author">
<eStructuralFeatures xsi:type="ecore:EAttribute" name="name" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
<eStructuralFeatures xsi:type="ecore:EAttribute" name="age" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
<eStructuralFeatures xsi:type="ecore:EAttribute" name="language" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
</eClassifiers>
</ecore:EPackage>

Attachment: sampleEcore.bmp
(Size: 256.33KB, Downloaded 12 times)

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Re: EMF Proxy [message #941238 is a reply to message #941233]

Fri, 12 October 2012 06:21

Abhijeet Shankargouda
Messages: 40
Registered: January 2012

Member

it is dirty model which i have uploaded .. Do you need more clarification on model?

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Re: EMF Proxy [message #941558 is a reply to message #941238]

Fri, 12 October 2012 12:37

Ed Merks
Messages: 24557
Registered: July 2009

Senior Member

Abhijeet,

You could try defining a transient volatile derived reference on link
that uses the information in the attributes to locate an author.
There's no general support for finding a resource just from an ID.
You'll have to implement something by hand for such mapping.

On 12/10/2012 12:21 PM, Abhijeet Shankargouda wrote:
> it is dirty model which i have uploaded .. Do you need more
> clarification on model?

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Re: EMF Proxy [message #944713 is a reply to message #941558]

Mon, 15 October 2012 00:34

Abhijeet Shankargouda
Messages: 40
Registered: January 2012

Member

Thank you Ed, I will try with transient volatile derived reference, and get back to you for any queries. Thanks a lot.

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