[news.eclipse.modeling.gmt] Re: [Epsilon][EVL] Printing collections

[Dimitrios Kolovos <dskolovos@xxxxxxxxx>]

Hi Andrew,

You can print a Collection as a string using the 
concat(delimiter:String) operation. E.g.

Sequence{1, 'Apple', 2}.concat(':').println() prints 1:Apple:2

Cheers,
Dimitrios

Andrew Lawson wrote:
> I'm having trouble comparing two collections.
>
> I create the collections by following a  reference from the start entity (in 
> this case named parent) and then following a link named operations and then 
> collecting together all of the name attributes of the classes.
>
> Is there anyway to print the collections in EVL so that I can see what 
> collections are being compared?
>
> self.parent.operations->collect(s| s.name)
>
>
>
> The relevant parts of the metamodel are:
>
> class Entity {
>
>   attr String classname;
>
>   attr String instancename;
>
>   attr Boolean Child;
>
>   val Attribute[+] attribute;
>
>   val Operation[*] operations;
>
>   val EntityReference[+] reference;
>
>   ref Entity[0..1] parent;
>
> }
>
>
>
>
>
> class Operation{
>
>
>
>     attr String name;
>
>       val Type[*] arguments;
>
>                 }