Eclipse Community Forums: M2T (model-to-text transformation) » [Acceleo] select over a Set(String) object

Help

Home

Home » Modeling » M2T (model-to-text transformation) » [Acceleo] select over a Set(String) object

Show: Today's Messages :: Show Polls :: Message Navigator

[Acceleo] select over a Set(String) object [message #904500]

Tue, 28 August 2012 10:42

Andrea Sindico
Messages: 252
Registered: November 2010

Senior Member

How may I execute a select over an set of String?
I mean setOfString->select(='test') is wrong, also setOfString->select(self='test')
what is the right syntax?

Follow me on Twitter @andreasindico

Report message to a moderator

Re: [Acceleo] select over a Set(String) object [message #904507 is a reply to message #904500]

Tue, 28 August 2012 10:54

Ed Willink
Messages: 3185
Registered: July 2009

Senior Member

Hi

Have you tried defining an iterator variable and using it?

Regards

Ed Willink

On 28/08/2012 15:42, Andrea Sindico wrote:
> How may I execute a select over an set of String?
> I mean setOfString->select(='test') is wrong, also
> setOfString->select(self='test')
> what is the right syntax?

Report message to a moderator

Re: [Acceleo] select over a Set(String) object [message #904517 is a reply to message #904500]

Tue, 28 August 2012 11:25

Andrea Sindico
Messages: 252
Registered: November 2010

Senior Member

My aim is not to iterate over the set. I need to do something only if a string (say 'test') is contained in the set. If the set does not contain that string I need to do something else.
i.e.

[if setOfString->select(??='test')->notEmpty()]
generate something
[else]
generate something else
[/if]

How would you do that by means of an iterator?

Follow me on Twitter @andreasindico

Report message to a moderator

Re: [Acceleo] select over a Set(String) object [message #904545 is a reply to message #904517]

Tue, 28 August 2012 12:46

Ed Willink
Messages: 3185
Registered: July 2009

Senior Member

setOfString->exists(s : String | s = 'test')
setOfString->includes('test')

Regards

Ed Willink

On 28/08/2012 16:25, Andrea Sindico wrote:
> My aim is not to iterate over the set. I need to do something only if
> a string (say 'test') is contained in the set. If the set does not
> contain that string I need to do something else.
> i.e.
>
>
> [if setOfString->select(??='test')->notEmpty()]
> generate something
> [else]
> generate something else
> [/if]
>
>
> How would you do that by means of an iterator?
>

Report message to a moderator

Re: [Acceleo] select over a Set(String) object [message #904558 is a reply to message #904500]

Tue, 28 August 2012 13:20

Andrea Sindico
Messages: 252
Registered: November 2010

Senior Member

Thank you Ed I did not know that syntax

Regards

Andrea

Follow me on Twitter @andreasindico

Report message to a moderator

Re: [Acceleo] select over a Set(String) object [message #904802 is a reply to message #904558]

Wed, 29 August 2012 03:24

Laurent Goubet
Messages: 1548
Registered: July 2009

Senior Member

Andrea,

Ed's answer is right, I'll just add that you can also use iterators in select and reject operations with the same syntax he has outlined for "exists" :

[setOfString->select(s : String | s = 'test')]

i.e :

variable.operation(iterator | body)

. This same syntax exists for all 'iteration' operation : select, reject, collect, exists, forAll, isUnique, one, any and sortedBy.

Though of course, "includes" is better if you only need to check whether you set contains a given value.

Laurent Goubet
Obeo

Report message to a moderator

Previous Topic:	[Acceleo] select distinct
Next Topic:	Acceleo induced InvalidRegistryObjectException

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Sat May 25 14:28:32 EDT 2013