Eclipse Community Forums: OCL » Return OrderedSet{null} for many features

Help

Home

Home » Modeling » OCL » Return OrderedSet{null} for many features

Show: Today's Messages :: Show Polls :: Message Navigator

Return OrderedSet{null} for many features [message #1066903]

Fri, 05 July 2013 06:20

Mario Bender

Messages: 1
Registered: July 2013

Junior Member

Hello ,

in our current design we decided to return an OrderedSet{} for unknown results, where the arity is *.

But ideally would be OrderedSet{null} for many features.

Is it possible to allow to return OrderedSet{null} and if so how?

Thanks in advance.

Report message to a moderator

Re: Return OrderedSet{null} for many features [message #1067017 is a reply to message #1066903]

Fri, 05 July 2013 13:02

Ed Willink

Messages: 7655
Registered: July 2009

Senior Member

Hi

OrderedSet{null} should be valid.

You should be able to use either "OrderedSet{null}" or
"null->asOrderedSet()"

You haven't described enough about your design context to enable me to
comment properly, but some of your phrasing makes me deeply suspicious.
You seem to be busy reusing a value that has a valid meaning to signal
some alternate meaning. This may bite you as the implementation progresses.

Regards

Ed Willink

On 05/07/2013 13:40, Mario Bender wrote:
> Hello ,
>
> in our current design we decided to return an OrderedSet{} for unknown
> results, where the arity is *.
>
>
> But ideally would be OrderedSet{null} for many features.
>
>
> Is it possible to allow to return OrderedSet{null} and if so how?
>
>
> Thanks in advance.
>

Report message to a moderator

Previous Topic:	OCL Editor
Next Topic:	Referencing other Enumerations from other .ecore Model

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Tue Apr 23 06:32:25 GMT 2024

.:: Contact :: Home ::.

Breadcrumbs

Sign up to our Newsletter