| [EVL] Printing collections [message #383062] |
Tue, 29 April 2008 10:19  |
Eclipse User |
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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;
}
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| Re: [Epsilon][EVL] Printing collections [message #383064 is a reply to message #383062] |
Tue, 29 April 2008 10:28  |
| Eclipse User |
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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;
>
> }
>
>
>
>
>
>
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| Re: [Epsilon][EVL] Printing collections [message #615802 is a reply to message #383062] |
Tue, 29 April 2008 10:28 |
| Eclipse User |
|
|
|
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;
>
> }
>
>
>
>
>
>
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