> From:
[hidden email]
> How to code a sort to obtain the following result:
> Sort by country then name.
Depending on your dataset (i.e., size, distribution, etc.),
Either (1) sort on country, then on name (using a sort that
preserve relative order for the second iteration) or (2) use a
single sort, with a comparator function like:
-- return 1 if c1 should precede c2, 0 otherwise
method isLessThan(c1 = Customer, c2 = Customer)
if c1.country < c2.country then return 1
if c1.country = c2.country then return c1.name < c2.name
return 0
To choose the best solution to your problem, check for example The
Art of Computer Programming, Volume 3 (Sorting and Searching).
Martin
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