[news.eclipse.modeling.m2m] Re: succesive "collect"

[William Piers <william.piers@xxxxxxx>]

Hello,

In fact, collect() will return a Sequence of Sequences. So to iterate 
over all elements, despite the fact that they are contained by sub 
sequences, you have to call the flatten() function first (see 
http://wiki.eclipse.org/ATL/User_Guide#Sequence_data_type_operations for 
details).

e.g. in your case:

classes <- DSLC!StructureElement.allInstances()
-> collect(e|e.chapiter) -> flatten()
-> collect(c | thisModule.SE2C(c) )

Best regards,

William

debutante a écrit :
> Good afternoon,
>
> can we applicate two succesive "collect" like this
>
> "classes <- 
> DSLC!StructureElement.allInstances()->collect(e|e.chapiter='true')->collect(c 
> | thisModule.SE2C(c) )"
>
> thank you