Commit | Line | Data |
---|---|---|
6fe26b29 | 1 | package DBM::Deep::Hash; |
2 | ||
2120a181 | 3 | use 5.006_000; |
460b1067 | 4 | |
6fe26b29 | 5 | use strict; |
065b45be | 6 | use warnings FATAL => 'all'; |
86867f3a | 7 | |
29460253 | 8 | our $VERSION = $DBM::Deep::VERSION; |
9 | ||
6fe26b29 | 10 | use base 'DBM::Deep'; |
11 | ||
596e9574 | 12 | sub _get_self { |
a4e2db58 | 13 | eval { local $SIG{'__DIE__'}; tied( %{$_[0]} ) } || $_[0] |
596e9574 | 14 | } |
15 | ||
e00d0eb3 | 16 | sub _repr { return {} } |
f9c33187 | 17 | |
6fe26b29 | 18 | sub TIEHASH { |
6fe26b29 | 19 | my $class = shift; |
0ca7ea98 | 20 | my $args = $class->_get_args( @_ ); |
6fe26b29 | 21 | |
22 | $args->{type} = $class->TYPE_HASH; | |
23 | ||
24 | return $class->_init($args); | |
25 | } | |
26 | ||
cb79ec85 | 27 | sub FETCH { |
28 | my $self = shift->_get_self; | |
2120a181 | 29 | DBM::Deep->_throw_error( "Cannot use an undefined hash key." ) unless defined $_[0]; |
f1879fdc | 30 | my $key = ($self->_engine->storage->{filter_store_key}) |
31 | ? $self->_engine->storage->{filter_store_key}->($_[0]) | |
cb79ec85 | 32 | : $_[0]; |
33 | ||
359a01ac | 34 | return $self->SUPER::FETCH( $key, $_[0] ); |
cb79ec85 | 35 | } |
36 | ||
81d3d316 | 37 | sub STORE { |
38 | my $self = shift->_get_self; | |
2120a181 | 39 | DBM::Deep->_throw_error( "Cannot use an undefined hash key." ) unless defined $_[0]; |
f1879fdc | 40 | my $key = ($self->_engine->storage->{filter_store_key}) |
41 | ? $self->_engine->storage->{filter_store_key}->($_[0]) | |
81d3d316 | 42 | : $_[0]; |
43 | my $value = $_[1]; | |
44 | ||
359a01ac | 45 | return $self->SUPER::STORE( $key, $value, $_[0] ); |
81d3d316 | 46 | } |
47 | ||
baa27ab6 | 48 | sub EXISTS { |
49 | my $self = shift->_get_self; | |
2120a181 | 50 | DBM::Deep->_throw_error( "Cannot use an undefined hash key." ) unless defined $_[0]; |
f1879fdc | 51 | my $key = ($self->_engine->storage->{filter_store_key}) |
52 | ? $self->_engine->storage->{filter_store_key}->($_[0]) | |
baa27ab6 | 53 | : $_[0]; |
54 | ||
55 | return $self->SUPER::EXISTS( $key ); | |
56 | } | |
57 | ||
feaf1e6f | 58 | sub DELETE { |
59 | my $self = shift->_get_self; | |
2120a181 | 60 | DBM::Deep->_throw_error( "Cannot use an undefined hash key." ) unless defined $_[0]; |
f1879fdc | 61 | my $key = ($self->_engine->storage->{filter_store_key}) |
62 | ? $self->_engine->storage->{filter_store_key}->($_[0]) | |
feaf1e6f | 63 | : $_[0]; |
64 | ||
359a01ac | 65 | return $self->SUPER::DELETE( $key, $_[0] ); |
feaf1e6f | 66 | } |
67 | ||
d426259c | 68 | # Locate and return first key (in no particular order) |
6fe26b29 | 69 | sub FIRSTKEY { |
eea0d863 | 70 | my $self = shift->_get_self; |
6fe26b29 | 71 | |
5c0756fc | 72 | $self->lock_shared; |
1cff45d7 | 73 | |
74 | my $result = $self->_engine->get_next_key( $self ); | |
75 | ||
9c87a079 | 76 | $self->unlock; |
1cff45d7 | 77 | |
f1879fdc | 78 | return ($result && $self->_engine->storage->{filter_fetch_key}) |
79 | ? $self->_engine->storage->{filter_fetch_key}->($result) | |
6fe26b29 | 80 | : $result; |
81 | } | |
82 | ||
d426259c | 83 | # Return next key (in no particular order), given previous one |
6fe26b29 | 84 | sub NEXTKEY { |
eea0d863 | 85 | my $self = shift->_get_self; |
6fe26b29 | 86 | |
f1879fdc | 87 | my $prev_key = ($self->_engine->storage->{filter_store_key}) |
88 | ? $self->_engine->storage->{filter_store_key}->($_[0]) | |
eea0d863 | 89 | : $_[0]; |
6fe26b29 | 90 | |
5c0756fc | 91 | $self->lock_shared; |
1cff45d7 | 92 | |
93 | my $result = $self->_engine->get_next_key( $self, $prev_key ); | |
94 | ||
9c87a079 | 95 | $self->unlock; |
96 | ||
f1879fdc | 97 | return ($result && $self->_engine->storage->{filter_fetch_key}) |
98 | ? $self->_engine->storage->{filter_fetch_key}->($result) | |
6fe26b29 | 99 | : $result; |
100 | } | |
101 | ||
f9c33187 | 102 | sub first_key { (shift)->FIRSTKEY(@_) } |
d426259c | 103 | sub next_key { (shift)->NEXTKEY(@_) } |
f9c33187 | 104 | |
cd5303b4 | 105 | sub _clear { |
106 | my $self = shift; | |
107 | ||
0b3cba50 | 108 | while ( defined( my $key = $self->first_key ) ) { |
cd5303b4 | 109 | $self->_engine->delete_key( $self, $key, $key ); |
110 | } | |
111 | ||
112 | return; | |
113 | } | |
114 | ||
f9c33187 | 115 | sub _copy_node { |
898fd1fd | 116 | my $self = shift; |
f9c33187 | 117 | my ($db_temp) = @_; |
118 | ||
119 | my $key = $self->first_key(); | |
120 | while ($key) { | |
121 | my $value = $self->get($key); | |
122 | $self->_copy_value( \$db_temp->{$key}, $value ); | |
123 | $key = $self->next_key($key); | |
124 | } | |
125 | ||
126 | return 1; | |
127 | } | |
6fe26b29 | 128 | |
129 | 1; | |
130 | __END__ |