Tie::Persistent v1.00

The Persistent package makes working with persistent data real easy by using the C<tie> interface.

It works by storing data contained in a variable into a file (not unlike a database). The primary advantage is speed, as the whole datastructure is kept in memory (which is also a limitation), and, of course, that you can use arbitrary data structures inside the variable (unlike DB_File).

To install, either use the excellent CPAN module or do the usual

perl Makefile.PL
make
make test
make install

Note that Tie::Persistent uses Data::Dumper and Storable, so you should make sure that these are available. As Data::Dumper comes with the base perl package and Storable is also on its way there, this shouldn't be a problem in the future. Actually Storable isn't needed and if it's not there, a warning is issued, but the module will work without it.

Changes

---

• fixed a bug with numbered backupfiles
• Storable is now optional, a warning is issued if '-w' is active.
• removed Sys::Hostname due to portability problems
• added a sync() method and autosyncing (thanks to Benjamin Liberman <beanjamman@yahoo.com> for that)
• fixed a bug with scalar refs and splice

I'm considering Tie::Persistent quite mature from now on (apart from the experimental feature, for which I haven't received any feedback).

Please feel free to send feedback and support requests.

Roland Giersig <RGiersig@cpan.org>