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From "Daniel Pitts (JIRA)" <j...@apache.org>
Subject [jira] [Created] (OGNL-19) Ability to programatically "step" through an Ognl execution.
Date Thu, 01 Sep 2011 21:44:10 GMT
Ability to programatically "step" through an Ognl execution.
------------------------------------------------------------

                 Key: OGNL-19
                 URL: https://issues.apache.org/jira/browse/OGNL-19
             Project: OGNL
          Issue Type: Wish
         Environment: All.
            Reporter: Daniel Pitts


First, let me describe in abstract terms my use case:

I have several "resources" which I need to retrieve (by URI).  I'm using Ognl to describe
the URI of these resources.  

Some of the resource URI's might be dependent on content in other resources.  I'd like to
be able to set up my own queuing mechanism which will put on hold any such dependent URI until
the resource is retrieved. 

Right now, the Ognl expression is evaluated using the Java stack, which makes it extremely
difficult to "pause" an expression.  

It would be nice if the expression state could be  externalized and run iteratively instead
of recursively.  

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