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Thread: Extending (overriding) configuration-point. Is it possible?
Extending (overriding) configuration-point. Is it possible?
user name
 2006-03-14 10:22:20 

  


  

    





Hi guys,



I need to override (extend) the schema definition for
configuration point.



 



It would allow me to replace one of the classes used
in <conversion …>; element with my own implementation (subclass).



 



Is it possible to override the configuration-point
schema?



 



If not possible, is there a way to provide my own
implementation for one of the classes used in <conversion …>;
element?



 



For reference: 



The real-world problem is as follows



Tapestry 4 Portlet library has PortletPageResolver service
which uses PageResolverContribution class in configuration point.



I need to extend PageResolverContribution to allow
not only direct matching (find the page based on given mimeType, portletModen
and windowState),



but also REVERSE MATCHING (find mimeType,
portletModen and windowState based on the page) .



 



thanks 






  

  
  
   
     
    

  

    Extending (overriding)
configuration-point. Is it possible?
  


  

     user name

     2006-03-16 08:07:14
  


  

    

  


  

    You can add extra items into to a configuration point - but you can't remove items from it.

The way round this is to provide an alternative implementation tag for the service you want to change configuration on. On the implementation tag add your own configuration point instead of the standard one. 


Thanks

Ben

On 3/14/06, Alexander Fishchuk <ulti.kiev.ua">alulti.kiev.ua> wrote:

















Hi guys,



I need to override (extend) the schema definition for
configuration point.



 



It would allow me to replace one of the classes used
in <conversion …> element with my own implementation (subclass).



 



Is it possible to override the configuration-point
schema?



 



If not possible, is there a way to provide my own
implementation for one of the classes used in <conversion …>
element?



 



For reference: 



The real-world problem is as follows



Tapestry 4 Portlet library has PortletPageResolver service
which uses PageResolverContribution class in configuration point.



I need to extend PageResolverContribution to allow
not only direct matching (find the page based on given mimeType, portletModen
and windowState),



but also REVERSE MATCHING (find mimeType,
portletModen and windowState based on the page) .



 



thanks 













  

  
  
   
     
    






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