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How to exit the FOR LOOP [message #486363] Thu, 17 September 2009 08:46 Go to next message
Omran  is currently offline Omran
Messages: 21
Registered: July 2009
Junior Member
Dear All,

I have a for loop statement and under a specific condition I want to
"exit" or "break" or "quit" the loop.

Does this capability exist?
here is the code that I am working on

[for (vc:ViewColumn|mv.columns)]
[if (vc.oclIsTypeOf(ViewExpColumn))]
[let vec : ViewExpColumn = vc.oclAsType(ViewExpColumn)]
[if (vec.expression.trim().toUpper().startsWith('SUM') or
vec.expression.trim().toUpper().startsWith('AVG') or
vec.expression.trim().toUpper().startsWith('MIN')or
vec.expression.trim().toUpper().startsWith('MAX') or
vec.expression.trim().toUpper().startsWith('COUNT'))]
GROUP BY
// I want here to exit the loop...how???
[/if]
[/let]
[/if]
[/for]


Thanks
Omran
Re: How to exit the FOR LOOP [message #486382 is a reply to message #486363] Thu, 17 September 2009 09:20 Go to previous message
Laurent Goubet is currently offline Laurent Goubet
Messages: 1621
Registered: July 2009
Senior Member
This is a multi-part message in MIME format.
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Content-Type: text/plain; charset=ISO-8859-15; format=flowed
Content-Transfer-Encoding: 8bit

Hi Omran,

There is no such functionality in either Acceleo or OCL. However what
you seek seems like the "exists" collection iterator to me (and yes,
"exists" does shortcut the evaluation if an element fulfills the condition).

----------8<----------
[if (mv.columns->select(oclIsTypeOf(ViewExpColumn))->exists(let exp :
String = expression.trim().toUpper() in exp.startsWith('SUM') or
exp.startsWith('AVG') or exp.startsWith('MIN') or exp.startsWith('MAX')
or exp.startsWith('COUNT')))]
GROUP BY
[/if]
---------->8----------

Laurent Goubet
Obeo

Omran a
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