[news.eclipse.modeling.mdt.uml2.ocl] Re: How to declare type of empty co

[Ed Merks <merks@xxxxxxxxxx>]

Tord,

I'll forward your question to the new OCL newsgroup.


Tord Alenljung wrote:
> How can I declare that for example a Set contains objects of some type 
> and then initialize it to be empty. Neither I or II below works, but 
> III does.
>
> (I) Not OK
> let a:Set(Integer)=Set{} in a
>
> 'Init expression type does not conform to type of variable (a).'
>
> (II) Not OK
> let a:Set(Integer)=Set(Integer){} in a
>
> '1:20:1:31 "collectionTypeIdentifierCS" expected instead of 
> "Set(Integer)"'
>
> (III) OK
> let a:Set(Integer)=Set{1,3,2} in a
>
> 2
> 1
> 3
>
> Regards
> Tord