package DBIx::Custom::NotExists; use strict; use warnings; my $not_exists = bless {}, 'DBIx::Custom::NotExists'; sub singleton { $not_exists } =head1 NAME DBIx::Custom::NotExists =head1 SYNOPSYS $not_exists = DBIx::Custom::NotExists->singleton; =head1 METHODS =head2 C<singleton> $not_exists = DBIx::Custom::NotExists->singleton; L<DBIx::Custom::NotExists> singleton object. =cut