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