[great-users] Abort a transformation

[Daniel Balasubramanian]

Hi Achim,

If I understand correctly, what you're trying to do is exit the transformation based on some condition, such as a pattern match.  Is this correct?  If so, you could use Test/Case blocks.  Insert a Test block, and put a Case block first that tests the condition for termination.  If that Case is true, then don't have any output ports for that Case (use a "Cut" element, too).  Otherwise, control will fall through to the next Case block in which you could just pass the input straight through to the next rule.

Hope this helps,
Daniel

-----Original Message-----
From: great-users-bounces at list.isis.vanderbilt.edu on behalf of Achim Gädke
Sent: Wed 2/16/2011 9:28 PM
To: great-users
Subject: [great-users] Abort a transformation
 
Hi there!

During the modeling phase I try to prevent ill designed models with OCLs in GME.

In the the model transformation I do (often similar) assumptions, which I would test with an assert statement in other programming languages.

Is there a concept comparable to assertions in GReAT?
For my project it would be sufficient to modify the exit code.

Cheers, Achim
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