| 1 | package Memoize::AnyDBM_File; |
| 2 | |
| 3 | =head1 NAME |
| 4 | |
| 5 | Memoize::AnyDBM_File - glue to provide EXISTS for AnyDBM_File for Storable use |
| 6 | |
| 7 | =head1 DESCRIPTION |
| 8 | |
| 9 | See L<Memoize>. |
| 10 | |
| 11 | =cut |
| 12 | |
| 13 | use vars qw(@ISA $VERSION); |
| 14 | $VERSION = 0.65; |
| 15 | @ISA = qw(DB_File GDBM_File Memoize::NDBM_File Memoize::SDBM_File ODBM_File) unless @ISA; |
| 16 | |
| 17 | my $verbose = 1; |
| 18 | |
| 19 | my $mod; |
| 20 | for $mod (@ISA) { |
| 21 | # (my $truemod = $mod) =~ s/^Memoize:://; |
| 22 | # my $file = "$mod.pm"; |
| 23 | # $file =~ s{::}{/}g; |
| 24 | if (eval "require $mod") { |
| 25 | print STDERR "AnyDBM_File => Selected $mod.\n" if $Verbose; |
| 26 | @ISA = ($mod); # if we leave @ISA alone, warnings abound |
| 27 | return 1; |
| 28 | } |
| 29 | } |
| 30 | |
| 31 | die "No DBM package was successfully found or installed"; |