1 package DBM::Deep::Hash;
8 our $VERSION = q(0.99_03);
13 eval { local $SIG{'__DIE__'}; tied( %{$_[0]} ) } || $_[0]
16 #XXX Need to add a check here for @_ % 2
17 sub _repr { shift;return { @_ } }
24 local $SIG{'__DIE__'};
25 foreach my $key (keys %$struct) {
26 $self->put($key, $struct->{$key});
29 $self->_throw_error("Cannot import: type mismatch");
37 # Tied hash constructor method, called by Perl's tie() function.
40 my $args = $class->_get_args( @_ );
42 $args->{type} = $class->TYPE_HASH;
44 return $class->_init($args);
48 my $self = shift->_get_self;
49 my $key = ($self->_storage->{filter_store_key})
50 ? $self->_storage->{filter_store_key}->($_[0])
53 return $self->SUPER::FETCH( $key, $_[0] );
57 my $self = shift->_get_self;
58 my $key = ($self->_storage->{filter_store_key})
59 ? $self->_storage->{filter_store_key}->($_[0])
63 return $self->SUPER::STORE( $key, $value, $_[0] );
67 my $self = shift->_get_self;
68 my $key = ($self->_storage->{filter_store_key})
69 ? $self->_storage->{filter_store_key}->($_[0])
72 return $self->SUPER::EXISTS( $key );
76 my $self = shift->_get_self;
77 my $key = ($self->_storage->{filter_store_key})
78 ? $self->_storage->{filter_store_key}->($_[0])
81 return $self->SUPER::DELETE( $key, $_[0] );
86 # Locate and return first key (in no particular order)
88 my $self = shift->_get_self;
91 # Request shared lock for reading
93 $self->lock( $self->LOCK_SH );
95 my $result = $self->_engine->get_next_key($self->_base_offset);
99 return ($result && $self->_storage->{filter_fetch_key})
100 ? $self->_storage->{filter_fetch_key}->($result)
106 # Return next key (in no particular order), given previous one
108 my $self = shift->_get_self;
110 my $prev_key = ($self->_storage->{filter_store_key})
111 ? $self->_storage->{filter_store_key}->($_[0])
115 # Request shared lock for reading
117 $self->lock( $self->LOCK_SH );
119 my $result = $self->_engine->get_next_key( $self->_base_offset, $prev_key );
123 return ($result && $self->_storage->{filter_fetch_key})
124 ? $self->_storage->{filter_fetch_key}->($result)
129 # Public method aliases
131 sub first_key { (shift)->FIRSTKEY(@_) }
132 sub next_key { (shift)->NEXTKEY(@_) }
138 my $key = $self->first_key();
140 my $value = $self->get($key);
141 $self->_copy_value( \$db_temp->{$key}, $value );
142 $key = $self->next_key($key);