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Attribute constraints on a dynamic model [message #1389251]

Fri, 27 June 2014 14:43

Michal Sudra

Messages: 5
Registered: March 2014

Junior Member

Hi,

I'm building a dynamic ecore model and creating instances of that model. And my question is how can I add constraints to my dynamic model attributes that can be checked by the validation framework.

Let say I have a following code example:

EcoreFactory ecoreFactory = EcoreFactory.eINSTANCE;
EClass productClass = ecoreFactory.createEClass();
productClass.setName( "Product" );
        
EAttribute name = ecoreFactory.createEAttribute();
productClass.getEStructuralFeatures().add( name );
name.setName( "name" );
name.setEType( EcorePackage.eINSTANCE.getEString() );
        
EAttribute price = ecoreFactory.createEAttribute();
productClass.getEStructuralFeatures().add( price );
price.setName( "price" );
price.setEType( EcorePackage.eINSTANCE.getEDouble() );

And my goal is to add a min and max values constraints to the 'price' attribute.
Any working example will be appreciated.

Thanks,
Michal

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Re: Attribute constraints on a dynamic model [message #1389280 is a reply to message #1389251]

Fri, 27 June 2014 15:23

Ed Merks

Messages: 30544
Registered: July 2009

Senior Member

Michal,

If you add extended metadata annotations just like the ones produce when
creating a model from XML Schema, those constraints will be check even
for dynamic models. It's possible with OCL as well...

On 27/06/2014 4:43 PM, Michal Sudra wrote:
> Hi,
>
> I'm building a dynamic ecore model and creating instances of that
> model. And my question is how can I add constraints to my dynamic
> model attributes that can be checked by the validation framework.
>
> Let say I have a following code example:
>
>
> EcoreFactory ecoreFactory = EcoreFactory.eINSTANCE;
> EClass productClass = ecoreFactory.createEClass();
> productClass.setName( "Product" );
> EAttribute name = ecoreFactory.createEAttribute();
> productClass.getEStructuralFeatures().add( name );
> name.setName( "name" );
> name.setEType( EcorePackage.eINSTANCE.getEString() );
> EAttribute price = ecoreFactory.createEAttribute();
> productClass.getEStructuralFeatures().add( price );
> price.setName( "price" );
> price.setEType( EcorePackage.eINSTANCE.getEDouble() );
>
> And my goal is to add a min and max values constraints to the 'price'
> attribute.
> Any working example will be appreciated.
>
> Thanks,
> Michal

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Re: Attribute constraints on a dynamic model [message #1389725 is a reply to message #1389280]

Sat, 28 June 2014 07:53

Ed Willink

Messages: 6481
Registered: July 2009

Senior Member

Hi

The OCLinEcore tutorial is a working example in Help->Help Contents->OCL
Documentation.

Regards

Ed Willink

On 27/06/2014 16:23, Ed Merks wrote:
> Michal,
>
> If you add extended metadata annotations just like the ones produce
> when creating a model from XML Schema, those constraints will be check
> even for dynamic models. It's possible with OCL as well...
>
>
> On 27/06/2014 4:43 PM, Michal Sudra wrote:
>> Hi,
>>
>> I'm building a dynamic ecore model and creating instances of that
>> model. And my question is how can I add constraints to my dynamic
>> model attributes that can be checked by the validation framework.
>>
>> Let say I have a following code example:
>>
>>
>> EcoreFactory ecoreFactory = EcoreFactory.eINSTANCE;
>> EClass productClass = ecoreFactory.createEClass();
>> productClass.setName( "Product" );
>> EAttribute name = ecoreFactory.createEAttribute();
>> productClass.getEStructuralFeatures().add( name );
>> name.setName( "name" );
>> name.setEType( EcorePackage.eINSTANCE.getEString() );
>> EAttribute price = ecoreFactory.createEAttribute();
>> productClass.getEStructuralFeatures().add( price );
>> price.setName( "price" );
>> price.setEType( EcorePackage.eINSTANCE.getEDouble() );
>>
>> And my goal is to add a min and max values constraints to the 'price'
>> attribute.
>> Any working example will be appreciated.
>>
>> Thanks,
>> Michal
>

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