public void update(){
  this.query_count++;
  this.query_last=new Date();
}

public void update ( ) { this . query_count ++ ; this . query_last = new Date ( ) ; }
a ' blind ' update can be done if the user submits a query but there are rules which prevent that the target system is queried as well . then the query result is calculated using the already stored messages . to reflect this , only the query - related attributes are changed .
