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Null Association

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Revision as of 17:27, 9 January 2007 by GrahameGrieve (talk | contribs)
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Rene:

What would the XML look like in case of a 'null association'? I don't know of a way in which the ITS supports this.

<class>
       <association nullFlavor='NI' xsi:nil='true'/>
       ...
</class>

Grahame:

There is no concept of a null association, but there is the concept of an association to a null object. So the XML would look like this:


<class>
       <association nullFlavor='NI'/>
</class>

So, there is no ...: if the object is null there can be no elements (though attributes such as classCode and moodCode could be appropriate) And xsi:nil would not be appropriate, though this is a matter of interpretation

Where there is a problem is the difference between a list of null associations and a null list of associations.