package DBM::Deep::Hash;
-use 5.6.0;
+use 5.006_000;
use strict;
-use warnings;
+use warnings FATAL => 'all';
-our $VERSION = q(0.99_01);
+our $VERSION = $DBM::Deep::VERSION;
use base 'DBM::Deep';
eval { local $SIG{'__DIE__'}; tied( %{$_[0]} ) } || $_[0]
}
-sub _repr { shift;return { @_ } }
-
-sub _import {
- my $self = shift;
- my ($struct) = @_;
-
- eval {
- local $SIG{'__DIE__'};
- foreach my $key (keys %$struct) {
- $self->put($key, $struct->{$key});
- }
- }; if ($@) {
- $self->_throw_error("Cannot import: type mismatch");
- }
-
- return 1;
-}
+sub _repr { return {} }
sub TIEHASH {
- ##
- # Tied hash constructor method, called by Perl's tie() function.
- ##
my $class = shift;
my $args = $class->_get_args( @_ );
sub FETCH {
my $self = shift->_get_self;
- my $key = ($self->_fileobj->{filter_store_key})
- ? $self->_fileobj->{filter_store_key}->($_[0])
+ DBM::Deep->_throw_error( "Cannot use an undefined hash key." ) unless defined $_[0];
+ my $key = ($self->_engine->storage->{filter_store_key})
+ ? $self->_engine->storage->{filter_store_key}->($_[0])
: $_[0];
return $self->SUPER::FETCH( $key, $_[0] );
sub STORE {
my $self = shift->_get_self;
- my $key = ($self->_fileobj->{filter_store_key})
- ? $self->_fileobj->{filter_store_key}->($_[0])
+ DBM::Deep->_throw_error( "Cannot use an undefined hash key." ) unless defined $_[0];
+ my $key = ($self->_engine->storage->{filter_store_key})
+ ? $self->_engine->storage->{filter_store_key}->($_[0])
: $_[0];
my $value = $_[1];
sub EXISTS {
my $self = shift->_get_self;
- my $key = ($self->_fileobj->{filter_store_key})
- ? $self->_fileobj->{filter_store_key}->($_[0])
+ DBM::Deep->_throw_error( "Cannot use an undefined hash key." ) unless defined $_[0];
+ my $key = ($self->_engine->storage->{filter_store_key})
+ ? $self->_engine->storage->{filter_store_key}->($_[0])
: $_[0];
return $self->SUPER::EXISTS( $key );
sub DELETE {
my $self = shift->_get_self;
- my $key = ($self->_fileobj->{filter_store_key})
- ? $self->_fileobj->{filter_store_key}->($_[0])
+ DBM::Deep->_throw_error( "Cannot use an undefined hash key." ) unless defined $_[0];
+ my $key = ($self->_engine->storage->{filter_store_key})
+ ? $self->_engine->storage->{filter_store_key}->($_[0])
: $_[0];
return $self->SUPER::DELETE( $key, $_[0] );
}
+# Locate and return first key (in no particular order)
sub FIRSTKEY {
- ##
- # Locate and return first key (in no particular order)
- ##
my $self = shift->_get_self;
- ##
- # Request shared lock for reading
- ##
- $self->lock( $self->LOCK_SH );
-
- my $result = $self->{engine}->get_next_key($self);
-
- $self->unlock();
-
- return ($result && $self->_fileobj->{filter_fetch_key})
- ? $self->_fileobj->{filter_fetch_key}->($result)
+ $self->lock_shared;
+
+ my $result = $self->_engine->get_next_key( $self );
+
+ $self->unlock;
+
+ return ($result && $self->_engine->storage->{filter_fetch_key})
+ ? $self->_engine->storage->{filter_fetch_key}->($result)
: $result;
}
+# Return next key (in no particular order), given previous one
sub NEXTKEY {
- ##
- # Return next key (in no particular order), given previous one
- ##
my $self = shift->_get_self;
- my $prev_key = ($self->_fileobj->{filter_store_key})
- ? $self->_fileobj->{filter_store_key}->($_[0])
+ my $prev_key = ($self->_engine->storage->{filter_store_key})
+ ? $self->_engine->storage->{filter_store_key}->($_[0])
: $_[0];
- my $prev_md5 = $self->{engine}{digest}->($prev_key);
-
- ##
- # Request shared lock for reading
- ##
- $self->lock( $self->LOCK_SH );
-
- my $result = $self->{engine}->get_next_key( $self, $prev_md5 );
-
- $self->unlock();
-
- return ($result && $self->_fileobj->{filter_fetch_key})
- ? $self->_fileobj->{filter_fetch_key}->($result)
+ $self->lock_shared;
+
+ my $result = $self->_engine->get_next_key( $self, $prev_key );
+
+ $self->unlock;
+
+ return ($result && $self->_engine->storage->{filter_fetch_key})
+ ? $self->_engine->storage->{filter_fetch_key}->($result)
: $result;
}
-##
-# Public method aliases
-##
sub first_key { (shift)->FIRSTKEY(@_) }
-sub next_key { (shift)->NEXTKEY(@_) }
+sub next_key { (shift)->NEXTKEY(@_) }
+
+sub _clear {
+ my $self = shift;
+
+ while ( defined( my $key = $self->first_key ) ) {
+ $self->_engine->delete_key( $self, $key, $key );
+ }
+
+ return;
+}
sub _copy_node {
my $self = shift;