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dpavlin |
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package Redis::Hash; |
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use strict; |
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use warnings; |
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use Tie::Hash; |
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use base qw/Redis Tie::StdHash/; |
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=head1 NAME |
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Redis::Hash - tie perl hashes into Redis |
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=head1 SYNOPSYS |
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dpavlin |
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tie %name, 'Redis::Hash', 'prefix'; |
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dpavlin |
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dpavlin |
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my $o = tie %foobar, 'Redis::Hash', 'foobar'; |
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print $o->info->{used_memory}; # or any redis command |
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dpavlin |
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=cut |
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# mandatory methods |
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sub TIEHASH { |
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my ($class,$name) = @_; |
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dpavlin |
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my $self = Redis->new; |
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$name .= ':' if $name; |
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dpavlin |
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$self->{name} = $name || ''; |
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bless $self => $class; |
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} |
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sub STORE { |
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my ($self,$key,$value) = @_; |
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$self->set( $self->{name} . $key, $value ); |
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} |
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sub FETCH { |
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my ($self,$key) = @_; |
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$self->get( $self->{name} . $key ); |
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} |
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sub FIRSTKEY { |
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my $self = shift; |
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dpavlin |
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$self->{keys} = [ $self->keys( $self->{name} . '*' ) ]; |
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$self->NEXTKEY; |
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dpavlin |
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} |
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sub NEXTKEY { |
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my $self = shift; |
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dpavlin |
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my $key = shift @{ $self->{keys} } || return; |
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my $name = $self->{name}; |
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$key =~ s{^$name}{} || warn "can't strip $name from $key"; |
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return $key; |
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dpavlin |
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} |
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sub EXISTS { |
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my ($self,$key) = @_; |
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$self->exists( $self->{name} . $key ); |
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} |
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sub DELETE { |
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my ($self,$key) = @_; |
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$self->del( $self->{name} . $key ); |
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} |
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sub CLEAR { |
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my ($self) = @_; |
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$self->del( $_ ) foreach ( $self->keys( $self->{name} . '*' ) ); |
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dpavlin |
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$self->{keys} = []; |
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dpavlin |
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} |
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1; |