package DBM::Deep::Hash;
+use 5.6.0;
+
use strict;
+use warnings;
+
+our $VERSION = q(0.99_03);
use base 'DBM::Deep';
eval { local $SIG{'__DIE__'}; tied( %{$_[0]} ) } || $_[0]
}
+#XXX Need to add a check here for @_ % 2
+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 TIEHASH {
##
# Tied hash constructor method, called by Perl's tie() function.
sub FETCH {
my $self = shift->_get_self;
- my $key = ($self->_root->{filter_store_key})
- ? $self->_root->{filter_store_key}->($_[0])
+ my $key = ($self->_fileobj->{filter_store_key})
+ ? $self->_fileobj->{filter_store_key}->($_[0])
: $_[0];
- return $self->SUPER::FETCH( $key );
+ return $self->SUPER::FETCH( $key, $_[0] );
}
sub STORE {
my $self = shift->_get_self;
- my $key = ($self->_root->{filter_store_key})
- ? $self->_root->{filter_store_key}->($_[0])
+ my $key = ($self->_fileobj->{filter_store_key})
+ ? $self->_fileobj->{filter_store_key}->($_[0])
: $_[0];
my $value = $_[1];
- return $self->SUPER::STORE( $key, $value );
+ return $self->SUPER::STORE( $key, $value, $_[0] );
}
sub EXISTS {
my $self = shift->_get_self;
- my $key = ($self->_root->{filter_store_key})
- ? $self->_root->{filter_store_key}->($_[0])
+ my $key = ($self->_fileobj->{filter_store_key})
+ ? $self->_fileobj->{filter_store_key}->($_[0])
: $_[0];
return $self->SUPER::EXISTS( $key );
sub DELETE {
my $self = shift->_get_self;
- my $key = ($self->_root->{filter_store_key})
- ? $self->_root->{filter_store_key}->($_[0])
+ my $key = ($self->_fileobj->{filter_store_key})
+ ? $self->_fileobj->{filter_store_key}->($_[0])
: $_[0];
- return $self->SUPER::DELETE( $key );
+ return $self->SUPER::DELETE( $key, $_[0] );
}
sub FIRSTKEY {
##
# Locate and return first key (in no particular order)
##
- my $self = $_[0]->_get_self;
+ my $self = shift->_get_self;
##
# Request shared lock for reading
##
$self->lock( $self->LOCK_SH );
- my $result = $self->{engine}->get_next_key($self);
+ my $result = $self->_engine->get_next_key($self->_base_offset);
$self->unlock();
- return ($result && $self->_root->{filter_fetch_key})
- ? $self->_root->{filter_fetch_key}->($result)
+ return ($result && $self->_fileobj->{filter_fetch_key})
+ ? $self->_fileobj->{filter_fetch_key}->($result)
: $result;
}
##
# Return next key (in no particular order), given previous one
##
- my $self = $_[0]->_get_self;
-
- my $prev_key = ($self->_root->{filter_store_key})
- ? $self->_root->{filter_store_key}->($_[1])
- : $_[1];
+ my $self = shift->_get_self;
- my $prev_md5 = $DBM::Deep::DIGEST_FUNC->($prev_key);
+ my $prev_key = ($self->_fileobj->{filter_store_key})
+ ? $self->_fileobj->{filter_store_key}->($_[0])
+ : $_[0];
##
# Request shared lock for reading
##
$self->lock( $self->LOCK_SH );
- my $result = $self->{engine}->get_next_key( $self, $prev_md5 );
+ my $result = $self->_engine->get_next_key( $self->_base_offset, $prev_key );
$self->unlock();
- return ($result && $self->_root->{filter_fetch_key})
- ? $self->_root->{filter_fetch_key}->($result)
+ return ($result && $self->_fileobj->{filter_fetch_key})
+ ? $self->_fileobj->{filter_fetch_key}->($result)
: $result;
}
##
# Public method aliases
##
-*first_key = *FIRSTKEY;
-*next_key = *NEXTKEY;
+sub first_key { (shift)->FIRSTKEY(@_) }
+sub next_key { (shift)->NEXTKEY(@_) }
+
+sub _copy_node {
+ my $self = shift;
+ my ($db_temp) = @_;
+
+ my $key = $self->first_key();
+ while ($key) {
+ my $value = $self->get($key);
+ $self->_copy_value( \$db_temp->{$key}, $value );
+ $key = $self->next_key($key);
+ }
+
+ return 1;
+}
1;
__END__