Returns the appropriate OpenSearch Description Document for the given collection. 
      Syntax
         
         
            public 
            abstract IODataOpenSearchDescription  
            getOpenSearchDescription
            (
            String 
            collectionId
            )
         
      
      Parameters
         
         
            - 
               collectionId – 
               The Id of the collection
            
 
         
       
      Returns
         The appropriate OpenSearch Description Document