NAME

DirDB::Storable - DirDB extended to pass complex things to Storable

SYNOPSIS

            

              
              
use DirDB::Storable;
tie my %PersistentData, 'DirDB', "./data";
            
          

DESCRIPTION

DirDB::Storable is an extended version of DirDB data persistence tool that uses the Storable module to store and retreive data that is other than scalars and hash references.

            

              
              
tie my %d => DirDB, '/tmp/foodb';
$d{ref1}->{ref2}->{ref3}->{ref4} = 'something'; 
# 'something' is now stored in /tmp/foodb/ref1/ref2/ref3/ref4
$d{ref5} = [1..99]; 
# an array reference, with data, is now stored in /tmp/foodb/ref5/\ Storable
            
          

RISKS

Besides the potential stale lock problem with DirDB, there is a risk of confusion about what is and isn't tied into the persistence framework.

            

              
              
$d{ref5}->[33] = 'cheese'; # not written out
{ 
  my $tmp = $d{ref5};
  $tmp->[33] = 'cheese';
  $d{ref5} = $tmp;        # a work-around
}
            
          

TO DO

a set of Tie::Storable modules that the retreived stored objects could be tied to instead of the above-demonstrated hack would be cool.

EXPORT

None by default.

AUTHOR

David Nicol, davidnicol@cpan.org

LICENSE

GPL/Artistic (the same terms as Perl itself)

SEE ALSO

l<DirDB>

better read l<perltie> before trying to extend this