question: public int compareTo ( final TP o ) { if ( this == o ) return 0 ; int ret = timestamp < o . timestamp ? - 1 : timestamp > o . timestamp ? 1 : 0 ; if ( ret == 0 ) { ret = name . compareTo ( o . name ) ; } return ret ; }
target:  Note: The order is imposed by timestamp (ascending) then property name (ascending). This means that a scan may abort once it reads a timestamp greater than the largest timestamp of interest.