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package DBM_Filter::compress ;
use strict;
use warnings;
use Carp;
our $VERSION = '0.03';
BEGIN
{
eval { require Compress::Zlib; Compress::Zlib->import() };
croak "Compress::Zlib module not found.\n"
if $@;
}
sub Store { $_ = compress($_) }
sub Fetch { $_ = uncompress($_) }
1;
__END__
=head1 NAME
DBM_Filter::compress - filter for DBM_Filter
=head1 SYNOPSIS
use SDBM_File; # or DB_File, GDBM_File, NDBM_File, ODBM_File
use DBM_Filter ;
$db = tie %hash, ...
$db->Filter_Push('compress');
=head1 DESCRIPTION
This DBM filter will compress all data before it is written to the database
and uncompressed it on reading.
A fatal error will be thrown if the Compress::Zlib module is not
available.
=head1 SEE ALSO
L<DBM_Filter>, L<perldbmfilter>, L<Compress::Zlib>
=head1 AUTHOR
Paul Marquess pmqs@cpan.org