1 |
package Redis::Hash; |
2 |
|
3 |
use strict; |
4 |
use warnings; |
5 |
|
6 |
use Tie::Hash; |
7 |
use base qw/Redis Tie::StdHash/; |
8 |
|
9 |
=head1 NAME |
10 |
|
11 |
Redis::Hash - tie perl hashes into Redis |
12 |
|
13 |
=head1 SYNOPSYS |
14 |
|
15 |
tie %name, 'Redis::Hash', 'prefix'; |
16 |
|
17 |
my $o = tie %foobar, 'Redis::Hash', 'foobar'; |
18 |
print $o->info->{used_memory}; # or any redis command |
19 |
|
20 |
=cut |
21 |
|
22 |
# mandatory methods |
23 |
sub TIEHASH { |
24 |
my ($class,$name) = @_; |
25 |
my $self = Redis->new; |
26 |
$name .= ':' if $name; |
27 |
$self->{name} = $name || ''; |
28 |
bless $self => $class; |
29 |
} |
30 |
|
31 |
sub STORE { |
32 |
my ($self,$key,$value) = @_; |
33 |
$self->set( $self->{name} . $key, $value ); |
34 |
} |
35 |
|
36 |
sub FETCH { |
37 |
my ($self,$key) = @_; |
38 |
$self->get( $self->{name} . $key ); |
39 |
} |
40 |
|
41 |
sub FIRSTKEY { |
42 |
my $self = shift; |
43 |
$self->{keys} = [ $self->keys( $self->{name} . '*' ) ]; |
44 |
$self->NEXTKEY; |
45 |
} |
46 |
|
47 |
sub NEXTKEY { |
48 |
my $self = shift; |
49 |
my $key = shift @{ $self->{keys} } || return; |
50 |
my $name = $self->{name}; |
51 |
$key =~ s{^$name}{} || warn "can't strip $name from $key"; |
52 |
return $key; |
53 |
} |
54 |
|
55 |
sub EXISTS { |
56 |
my ($self,$key) = @_; |
57 |
$self->exists( $self->{name} . $key ); |
58 |
} |
59 |
|
60 |
sub DELETE { |
61 |
my ($self,$key) = @_; |
62 |
$self->del( $self->{name} . $key ); |
63 |
} |
64 |
|
65 |
sub CLEAR { |
66 |
my ($self) = @_; |
67 |
$self->del( $_ ) foreach ( $self->keys( $self->{name} . '*' ) ); |
68 |
$self->{keys} = []; |
69 |
} |
70 |
|
71 |
1; |