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[Acceleo] query problem [message #1406995]

Mon, 11 August 2014 16:12

Arunkumar Ramaswamy

Messages: 57
Registered: April 2014

Member

I have a metamodel as below
System
|_Component (attributes: name(string)

I am confused how to write a query that returns a collection of Components whose name = "xxx".

The below query returns all the component elements of System, but i need only that has a particular name.
how can I use FOR/IF loops inside query?

[query public getComp (aSystem : System) : Collection(Component) =
aSystem.eGet('component')
/]

Any help much appreciated.
Arun

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Re: [Acceleo] query problem [message #1407026 is a reply to message #1406995]

Mon, 11 August 2014 17:50

Ed Willink

Messages: 7655
Registered: July 2009

Senior Member

HI

IN Acceleo you are using a powerful modeling tool, so forget about any
Java API that you may have used in the past. In particular eGet is a bit
mistake.

Not sure what uyou really want but something like

someComponents->select(c | c.name = 'xxx')

might do as part of the caller; no real need to wrap it up as a query.

Regards

Ed Willink

On 11/08/2014 17:12, Arunkumar Ramaswamy wrote:
> I have a metamodel as below
> System
> |_Component (attributes: name(string)
>
> I am confused how to write a query that returns a collection of
> Components whose name = "xxx".
>
> The below query returns all the component elements of System, but i
> need only that has a particular name.
> how can I use FOR/IF loops inside query?
>
> [query public getComp (aSystem : System) : Collection(Component) =
> aSystem.eGet('component')
> /]
>
>
> Any help much appreciated.
> Arun

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