I hava a set of Longs (Timestamps actually). Apparently they can't be casted to Integers without loosing data because the timestamp doesn't fit Integer range. I need to generate a Primary Key of Integer type based on these Longs. Is there any way to do this?
Suppose the range of date timestamps are created is limited. Let's say dates after December, 12 2004. Seems like a reasonable approach truncating the highest significant digits, e.g.
long 00001357288262
int 1357288262