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=head1 NAME |
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Pixie::Store::Memory -- a memory store for Pixie. |
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=head1 SYNOPSIS |
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use Pixie; |
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my $px = Pixie->new->connect( 'memory' ); |
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=head1 DESCRIPTION |
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A memory store for Pixie. |
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=cut |
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package Pixie::Store::Memory; |
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use Carp qw( confess ); |
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use Storable qw( nfreeze thaw ); |
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use base qw( Pixie::Store ); |
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our $VERSION = "2.08_02"; |
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sub init { |
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my $self = shift; |
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$self->{store} = {}; |
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$self->{rootset} = {}; |
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return $self; |
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} |
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sub deploy { |
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my $self = shift; |
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# do nothing |
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return $self; |
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} |
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sub connect { |
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my $self = shift; |
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$self = ref($self) ? $self : $self->new; |
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} |
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sub remove_from_rootset { |
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my $self = shift; |
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my $oid = shift; |
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delete $self->{rootset}{$oid}; |
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return $self; |
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} |
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sub _add_to_rootset { |
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my $self = shift; |
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my $thing = shift; |
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$self->{rootset}{$thing->PIXIE::oid} = 1; |
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return $self; |
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} |
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## TODO: use wantarray |
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sub rootset { |
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my $self = shift; |
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keys %{$self->{rootset}}; |
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} |
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sub working_set_for { |
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my $self = shift; |
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my @ret = keys %{$self->{store}}; |
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return wantarray ? @ret : \@ret; |
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} |
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sub _delete { |
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my $self = shift; |
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my($oid) = @_; |
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defined(delete $self->{store}{$oid}) ? 1 : 0; |
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} |
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sub store_at { |
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my $self = shift; |
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my($oid, $obj) = @_; |
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# TODO: why not throw an error if no $oid? |
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if ($oid) { |
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$self->{store}{$oid} = nfreeze($obj); |
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return($oid, $obj); |
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} |
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else { |
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return $obj; |
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} |
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} |
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sub get_object_at { |
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my $self = shift; |
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my($oid) = @_; |
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return thaw $self->{store}{$oid}; |
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} |
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sub lock { $_[0] } |
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sub unlock { $_[0] } |
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sub rollback { $_[0] } |
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sub clear { |
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my $self = shift; |
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%{$self->{store}} = (); |
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%{$self->{rootset}} = (); |
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return $self; |
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} |
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sub delete_object_at { |
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my $self = shift; |
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my($oid) = @_; |
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if (defined(wantarray)) { |
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return thaw delete $self->{store}{$oid}; |
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} |
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else { |
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delete $self->{store}{$oid}; |
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} |
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} |
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1; |
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__END__ |