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Overriding Assocations and/or properties

Question asked by jmliege on Jul 17, 2006
Latest reply on Jul 20, 2006 by jmliege

I wish to extend the cm:folder so that it can only contains a specialized type

In fact it means that
  * my:type extends cm:content.
  * my:folder extends cm:folder

I want to override the 'cm:contains' child-association to only accept
target class such as 'my:type'

Is it possible ?
Currently I get the following message (when trying to validate my model) :

Duplicate association definition cm:contains found in class hierarchy of my:folder

Any suggestions to do it, or simply it is not possible…