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OCL for defining attribute facet [message #1392507]

Wed, 02 July 2014 12:46

Thibaut Hellin

Messages: 1
Registered: July 2014

Junior Member

Good afternoon,

I would like to know if it is possible to define the facets (Length, MaxLength,...) of an attribute through an OCL?

For example, I'm creating a class representing the address (classname: Address). This class has differents attributes that are:
- StreetName
- HouseNumber
- City
- ...

I want to be able to define that (for example) StreetName MaxLength is 60 characters and City MaxLength is 40 characters.

My OCL should start from something like:

self: Address.StreetName. ??? (what should come here?)
self: Address.City. ???

Thanks in advance for your answer
Have a nice day

Thibaut

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Re: OCL for defining attribute facet [message #1392650 is a reply to message #1392507]

Wed, 02 July 2014 16:48

Ed Willink

Messages: 7658
Registered: July 2009

Senior Member

HI

Yes, that used to my first test example. See the OCLinEcore Tutorial in
the built in documentation, where you'll find a simple invariant that
enforces lowercase.

Regards

Ed Willink

On 02/07/2014 15:04, Thibaut Hellin wrote:
> Good afternoon,
>
> I would like to know if it is possible to define the facets (Length,
> MaxLength,...) of an attribute through an OCL?
>
> For example, I'm creating a class representing the address (classname:
> Address). This class has differents attributes that are:
> - StreetName
> - HouseNumber
> - City
> - ...
>
> I want to be able to define that (for example) StreetName MaxLength is
> 60 characters and City MaxLength is 40 characters.
>
> My OCL should start from something like:
> self: Address.StreetName. ??? (what should come here?)
> self: Address.City. ???
>
> Thanks in advance for your answer
> Have a nice day
>
> Thibaut

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