NAME

Redis::Client::Set - Work with Redis sets

VERSION

version 0.009

SYNOPSIS

use Redis::Client;

my $client = Redis::Client->new;
tie my %set, 'Redis::Client::Set', key => 'my_set', client => $client;

my @members = keys %set;
$set{foo} = undef;
print 1 if exists $set{bar};

DESCRIPTION

This class provides a tied interface for Redis sets. Redis sets are mapped to Perl hashes. Like Perl hashes, Redis sets contain an unordered group of "members" which are mapped to keys in the hash. The values in a hash tied to a Redis set are ALWAYS undef. Adding a value to a Redis set will cause the member to be created if it does not already exist, but the value will be discarded.

Any time the hash is evaluated or the existence of a key is tested, the corresponding value will be fetched from the Redis store. Any time a key is added or deleted, the change will be written to the Redis store.

INTERFACE

The following Perl builtins will work the way you expect on Redis sets.

delete

Removes a member from the set. (Note that this is not the same as setting the value to undef, in which case the member still exists.)

delete $set{foo};

exists

Check if a member exists in the set.

print 1 if exists $set{blargh};

keys

Retrieves a list of all members in the set, in no particular order.

my @members = keys %set;

values

Retrieves a list of all "values" in the set. This will always be a list of undefs. Not very useful.

my @vals = values %set;

each

Iterate over key/value pairs from the hash. The values will always be undef.

while( my ( $key, $val ) = each %set ) { ... }

SEE ALSO

Redis::Client

EXTENDS

• Moose::Object

CONSUMES

• Redis::Client::Role::Tied

AUTHOR

Mike Friedman <friedo@friedo.com>

COPYRIGHT AND LICENSE

This software is copyright (c) 2011 by Mike Friedman.

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