Design for collections upgrades

Rémi Forax forax at
Thu Mar 10 03:04:41 PST 2011

  Le 10/03/2011 11:46, "Zdeněk Troníček" a écrit :
> To me it seems logical that filter() returns the same collection as was
> the original collection. For Set you do not have any other choice either:
> set.filter(predicate)
> cannot switch from HashSet to TreeSet or back.
> Z.

How do you implement that ?


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