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[EMF Forms] ViewModel generation does not work with classes in packages [message #1696128]

Fri, 22 May 2015 08:59

Tobias Zangl

Messages: 15
Registered: May 2015

Junior Member

Hey,

first of all i was not sure if this is the right place for this topic or if it belongs to "EMF Technology"?

My Problem:
I have an ecore file with 3 subpackages and i am not able to create view model (projects) for the classes in the subpackages. For the classes in the ecore package everything works fine. I don't get any error message, it is just not creating any .viewmodel files.

Is there anything wrong with creating multiple subpackages in an ecore file?
Should i create multiple ecore files instead?

If i create the viewmodel file by hand in the text editor the View Model Editor does not complain but the emf forms preview brings the following error:

java.lang.NullPointerException
	at org.eclipse.emf.ecore.impl.EStructuralFeatureImpl.getSettingDelegate(EStructuralFeatureImpl.java:840)
	at org.eclipse.emf.ecore.impl.BasicEObjectImpl.eSettingDelegate(BasicEObjectImpl.java:1561)
....

Any help would be appreciated. Smile

Greetings,
Tobi

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Re: [EMF Forms] ViewModel generation does not work with classes in packages [message #1696183 is a reply to message #1696128]

Fri, 22 May 2015 15:22

Ed Merks

Messages: 33141
Registered: July 2009

Senior Member

Tobias,

Comments below.

On 22/05/2015 3:39 PM, Tobias Zangl wrote:
> Hey,
>
> first of all i was not sure if this is the right place for this topic
> or if it belongs to "EMF Technology"?
>
> My Problem:
> I have an ecore file with 3 subpackages and i am not able to create
> view model (projects) for the classes in the subpackages. For the
> classes in the ecore package everything works fine. I don't get any
> error message, it is just not creating any .viewmodel files.
>
> Is there anything wrong with creating multiple subpackages in an ecore
> file?
No, but it's generally inviting problems...
> Should i create multiple ecore files instead?
That's generally better support by the whole technology stack.
>
> If i create the viewmodel file by hand in the text editor the View
> Model Editor does not complain but the emf forms preview brings the
> following error:
> java.lang.NullPointerException
> at
> org.eclipse.emf.ecore.impl.EStructuralFeatureImpl.getSettingDelegate(EStructuralFeatureImpl.java:840)
> at
> org.eclipse.emf.ecore.impl.BasicEObjectImpl.eSettingDelegate(BasicEObjectImpl.java:1561)
This suggests that you have a structural feature that doesn't have a
type. I'm not sure how that's possible for a model that's well formed.
But you say the generated model otherwise works fine?
> ...
>
> Any help would be appreciated. :)
>
> Greetings,
> Tobi

Ed Merks
Professional Support: https://www.macromodeling.com/

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Re: [EMF Forms] ViewModel generation does not work with classes in packages [message #1696223 is a reply to message #1696183]

Sat, 23 May 2015 14:01

Jonas Helming

Messages: 699
Registered: July 2009

Senior Member

Please also see:
http://eclipsesource.com/blogs/2013/03/19/emf-dos-and-don%C2%B4ts-5/

Am 22.05.2015 um 17:22 schrieb Ed Merks:
> Tobias,
>
> Comments below.
>
>
> On 22/05/2015 3:39 PM, Tobias Zangl wrote:
>> Hey,
>>
>> first of all i was not sure if this is the right place for this topic
>> or if it belongs to "EMF Technology"?
>>
>> My Problem:
>> I have an ecore file with 3 subpackages and i am not able to create
>> view model (projects) for the classes in the subpackages. For the
>> classes in the ecore package everything works fine. I don't get any
>> error message, it is just not creating any .viewmodel files.
>>
>> Is there anything wrong with creating multiple subpackages in an ecore
>> file?
> No, but it's generally inviting problems...
>> Should i create multiple ecore files instead?
> That's generally better support by the whole technology stack.
>>
>> If i create the viewmodel file by hand in the text editor the View
>> Model Editor does not complain but the emf forms preview brings the
>> following error:
>> java.lang.NullPointerException
>> at
>> org.eclipse.emf.ecore.impl.EStructuralFeatureImpl.getSettingDelegate(EStructuralFeatureImpl.java:840)
>>
>> at
>> org.eclipse.emf.ecore.impl.BasicEObjectImpl.eSettingDelegate(BasicEObjectImpl.java:1561)
>>
> This suggests that you have a structural feature that doesn't have a
> type. I'm not sure how that's possible for a model that's well formed.
> But you say the generated model otherwise works fine?
>> ...
>>
>> Any help would be appreciated. :)
>>
>> Greetings,
>> Tobi
>

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