[DFDL-WG] question for the working group

[Alan Powell]

Joe

Correct that circular references are a schema definition error but the 
specification doesn't say that explicitly. I will add it to the (newly 
created) list of errata
 
Regards

 
Alan Powell
 
Development - MQSeries, Message Broker, ESB
IBM Software Group, Application and Integration Middleware Software
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From:   Joe Futrelle <futrelle at ncsa.uiuc.edu>
To:     Alan Powell/UK/IBM at IBMGB
Cc:     "Robert E. McGrath" <remcgrat at illinois.edu>
Date:   11/02/2011 17:42
Subject:        question for the working group



Section 7.2.1 describes how a dfdl:defineFormat can include a ref on its 
enclosed dfdl:format, to establish inheritance among defined formats.

It is therefore possible to express circular inheritance patterns:

<dfdl:defineFormat name="deadly">
  <dfdl:format ref="embrace" ... />
</dfdl:defineFormat>

<dfdl:defineFormat name="embrace">
  <dfdl:format ref="deadly" .../>
</dfdl:defineFormat>

I assume circular inheritance ought to be schema definition error; does 
the spec say that, anywhere?

--
Joe Futrelle
Cyberenvironments and Technologies
National Center for Supercomputing Applications
http://www.ncsa.uiuc.edu/People/futrelle








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