NAME
   Tie::CHI - Tied hash to persistent CHI cache

VERSION
   version 0.02

SYNOPSIS
       use Tie::CHI;

       my %cache;

       # Pass CHI options to tie
       #
       tie %cache, 'Tie::CHI', { driver => 'File', root_dir => '/path/to/root' };
       tie %cache, 'Tie::CHI',
         {
           driver             => 'Memcached::libmemcached',
           namespace          => 'homepage',
           servers            => [ "10.0.0.15:11211", "10.0.0.15:11212" ],
           default_expires_in => '10 min'
         } );

       # or pass an existing CHI object
       #
       my $chi_object = CHI->new(...);
       tie %cache, 'Tie::CHI', $chi_object;

       # Perform cache operations
       #
       my $customer = $cache{$name};
       if ( !defined $customer ) {
             $customer = get_customer_from_db($name);
             $cache{$name} = $customer;
       }
       delete( $cache{$name} );

       # Break the binding
       #
       untie(%cache);

DESCRIPTION
   Tie::CHI implements a tied hash connected to a CHI cache. It can be used
   with any of CHI's backends (File, Memcached, DBI, etc.)

   Usage is one of the following:

       tie %cache, 'Tie::CHI', $hash_of_chi_options;
       tie %cache, 'Tie::CHI', $existing_chi_cache;

   A read/write/delete on the tied hash will result in a
   `get'/`set'/`remove' on the underlying cache. `keys' and `each' will be
   supported if the underlying CHI driver supports `get_keys'.

   There is no way to specify expiration for an individual `set', but you
   can pass `expires_in', `expires_at' and/or `expires_variance' to the tie
   to specify default expiration. e.g.

       tie %cache, 'Tie::CHI', {
           namespace => 'products',
           driver => 'DBI',
           dbh => DBIx::Connector->new(...),
           expires_in => '4 hours',
           expires_variance => '0.2'
       };

SUPPORT AND DOCUMENTATION
   Questions and feedback are welcome, and should be directed to the
   perl-cache mailing list:

       http://groups.google.com/group/perl-cache-discuss

   Bugs and feature requests will be tracked at RT:

       http://rt.cpan.org/NoAuth/Bugs.html?Dist=Tie-CHI
       [email protected]

   The latest source code can be browsed and fetched at:

       http://github.com/jonswar/perl-tie-chi/tree/master
       git clone git://github.com/jonswar/perl-tie-chi.git

SEE ALSO
   CHI

AUTHOR
   Jonathan Swartz <[email protected]>

COPYRIGHT AND LICENSE
   This software is copyright (c) 2011 by Jonathan Swartz.

   This is free software; you can redistribute it and/or modify it under
   the same terms as the Perl 5 programming language system itself.

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