Perhaps if you generalized the interface a bit
more, and made it apply to any sort of data in
a list ?
List::Aged perhaps ? or maybe List::Expires ?
Update:It occurs to me I might be clearer
with an example:
use List::Aged;
my $list=List::Aged->new();
$list->add( -expires => "60 seconds", "some","list",
"of","random","stuff");
$list->add( -expires => "10 hours", "whee");
$list->exists("random"); # true, for now
sleep(61);
$list->exists("random"); # false now
$list->exists("whee"); # true
Then again, a list would denote values that don't
have to be unique. The exists() routine sort of
denotes unique members. Blech.
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