lib/Redis/Hash.pm

package Redis::Hash;

use strict;
use warnings;

use Tie::Hash;
use base qw/Redis Tie::StdHash/;

use Data::Dump qw/dump/;

=head1 NAME

Redis::Hash - tie perl hashes into Redis

=head1 SYNOPSYS

  tie %name, 'Redis::Hash', 'prefix';

=cut

# mandatory methods
sub TIEHASH {
        my ($class,$name) = @_;
        my $self = Redis->new;
        $name .= ':' if $name;
        $self->{name} = $name || '';
        bless $self => $class;
}

sub STORE {
        my ($self,$key,$value) = @_;
        $self->set( $self->{name} . $key, $value );
}

sub FETCH {
        my ($self,$key) = @_;
        $self->get( $self->{name} . $key );
}

sub FIRSTKEY {
        my $self = shift;
        $self->{keys} = [ $self->keys( $self->{name} . '*' ) ];
        $self->NEXTKEY;
} 

sub NEXTKEY {
        my $self = shift;
        my $key = shift @{ $self->{keys} } || return;
        my $name = $self->{name};
        $key =~ s{^$name}{} || warn "can't strip $name from $key";
        return $key;
}

sub EXISTS {
        my ($self,$key) = @_;
        $self->exists( $self->{name} . $key );
}

sub DELETE {
        my ($self,$key) = @_;
        $self->del( $self->{name} . $key );
}

sub CLEAR {
        my ($self) = @_;
        $self->del( $_ ) foreach ( $self->keys( $self->{name} . '*' ) );
        $self->{keys} = [];
}

1;
1	dpavlin	42	package Redis::Hash;
2
3			use strict;
4			use warnings;
5
6			use Tie::Hash;
7			use base qw/Redis Tie::StdHash/;
8
9	dpavlin	43	use Data::Dump qw/dump/;
10
11	dpavlin	42	=head1 NAME
12
13			Redis::Hash - tie perl hashes into Redis
14
15			=head1 SYNOPSYS
16
17	dpavlin	43	tie %name, 'Redis::Hash', 'prefix';
18	dpavlin	42
19			=cut
20
21			# mandatory methods
22			sub TIEHASH {
23			my ($class,$name) = @_;
24	dpavlin	43	my $self = Redis->new;
25			$name .= ':' if $name;
26	dpavlin	42	$self->{name} = $name \|\| '';
27			bless $self => $class;
28			}
29
30			sub STORE {
31			my ($self,$key,$value) = @_;
32			$self->set( $self->{name} . $key, $value );
33			}
34
35			sub FETCH {
36			my ($self,$key) = @_;
37			$self->get( $self->{name} . $key );
38			}
39
40			sub FIRSTKEY {
41			my $self = shift;
42	dpavlin	43	$self->{keys} = [ $self->keys( $self->{name} . '*' ) ];
43			$self->NEXTKEY;
44	dpavlin	42	}
45
46			sub NEXTKEY {
47			my $self = shift;
48	dpavlin	43	my $key = shift @{ $self->{keys} } \|\| return;
49			my $name = $self->{name};
50			$key =~ s{^$name}{} \|\| warn "can't strip $name from $key";
51			return $key;
52	dpavlin	42	}
53
54			sub EXISTS {
55			my ($self,$key) = @_;
56			$self->exists( $self->{name} . $key );
57			}
58
59			sub DELETE {
60			my ($self,$key) = @_;
61			$self->del( $self->{name} . $key );
62			}
63
64			sub CLEAR {
65			my ($self) = @_;
66			$self->del( $_ ) foreach ( $self->keys( $self->{name} . '*' ) );
67	dpavlin	43	$self->{keys} = [];
68	dpavlin	42	}
69
70			1;