1 package Onis::Data::Persistent::None;
6 use Carp qw(carp confess);
10 Onis::Data::Persistent::None - Storage backend without storage.. ;)
14 Simple storage backend that handles data in-memory only..
16 =head1 CONFIGURATION OPTIONS
24 if ($::DEBUG & 0x0200)
37 my $caller = caller ();
41 my $id = $caller . ':' . $name;
43 if (exists ($Tree->{$id}))
45 print STDERR $/, __FILE__, ": Name $name has been used in context $caller before.";
50 $obj->{'data'} = $Tree->{$id};
53 $obj->{'fields'} = [@fields];
54 $obj->{'num_fields'} = scalar (@fields);
55 $obj->{'field_index'} = {map { $_ => $i++ } (@fields)};
58 if ($::DEBUG & 0x0200)
60 my $prefix = __FILE__ . ': ';
61 my $dbg = Data::Dumper->Dump ([$obj], ['obj']);
62 $dbg =~ s/^/$prefix/mg; chomp ($dbg);
63 print STDOUT $/, $dbg;
66 return (bless ($obj, $pkg));
75 if ($obj->{'num_fields'} != scalar (@fields))
77 my $id = $obj->{'id'};
78 carp ("Number of fields do not match ($id).");
82 if ($::DEBUG & 0x0200)
84 print STDOUT $/, __FILE__, ': PUT(', $obj->{'id'}, ', ', $key, ') = (' . join (', ', @fields) . ')';
87 $obj->{'data'}{$key} = [@fields];
95 if (!defined ($obj->{'data'}{$key}))
100 if ($::DEBUG & 0x0200)
102 print STDOUT $/, __FILE__, ': GET(', $obj->{'id'}, ', ', $key, ') = (' . join (', ', @{$obj->{'fields'}}) . ')';
105 return (@{$obj->{'data'}{$key}});
112 my @field_indizes = ();
113 my @keys = keys %{$obj->{'data'}};
123 if (!defined ($obj->{'field_index'}{$field}))
125 my $id = $obj->{'id'};
126 print STDERR $/, __FILE__, ": $field is not a valid field ($id).";
128 push (@field_indizes, $obj->{'field_index'}{$field});
135 my $d = $obj->{'data'}{$a}[$_] cmp $obj->{'data'}{$b}[$_];
146 if (defined ($obj->{'data'}{$key}))
148 delete ($obj->{'data'}{$key});
154 Florian octo Forster, L<octo@verplant.org>