protected ExtendedDismaxConfiguration createConfiguration(String qstr,SolrParams localParams,SolrParams params,SolrQueryRequest req){
  return new ExtendedDismaxConfiguration(localParams,params,req);
}

protected ExtendedDismaxConfiguration createConfiguration ( String qstr , SolrParams localParams , SolrParams params , SolrQueryRequest req ) { return new ExtendedDismaxConfiguration ( localParams , params , req ) ; }
creates an instance of extendeddismaxconfiguration . it will contain all the necessary parameters to parse the query
