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OCLinEcore. How the set a attribute of type java.lang.Locale [message #1853236]

Thu, 23 June 2022 13:27

Eclipse User

I have an EMF Model like this:

class Text
{
attribute text : String[1];
attribute local : Locale[1];
}
datatype Locale : 'java.lang.Locale' { serializable };

It is possible to insert a string and convert it into java Locale Object in the dynamic instance(XMI)?

Re: OCLinEcore. How the set a attribute of type java.lang.Locale [message #1853255 is a reply to message #1853236]

Fri, 24 June 2022 05:51

Eclipse User

Hi

Yes and No.

Part of the OCL test suite comprises:

		ocl.assertQueryTrue(null, "ecore::EDate{'2000-01-24'} <= ecore::EDate{value='2000-01-24'}");

so yes, string constructed data types are supported.

However the above uses Ecore's EDate mapping to java.util.Date and the custom implementation in EcoreFactoryImpl.createEDateFromString.

Locale has a single argument String constructor, so you may be lucky and find that Ecore's fallback to String works without any effort by you. More likely you will need to genmodel and manually implement createLocaleFromString to avoid the IllegalArgumentException at the end of EcoreFactoryImpl.createFromString.

That said, I must question the wisdom of using the non-String when the String would avoid problems.

Regards

Ed Willink

Re: OCLinEcore. How the set a attribute of type java.lang.Locale [message #1853267 is a reply to message #1853255]

Fri, 24 June 2022 10:36

Eclipse User

Thanks for that hint. In the diagram there're two sections for custom code for an own DataType.

https://i.ibb.co/YX88Z0t/locale-ecore.png

[Updated on: Fri, 24 June 2022 10:37] by Moderator

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