KiokuDB::Backend::Serialize - Serialization role for backends

KiokuDB documentation Contained in the KiokuDB distribution.

Index

Code Index:

NAME

Top

KiokuDB::Backend::Serialize - Serialization role for backends

SYNOPSIS

Top

    package KiokuDB::Backend::Serialize::Foo;
    use Moose::Role;

    use Foo;

    use namespace::clean -except => 'meta';

    with qw(KiokuDB::Backend::Serialize);

    sub serialize {
        my ( $self, $entry ) = @_;

        Foo::serialize($entry)
    }

    sub deserialize {
        my ( $self, $blob ) = @_;

        Foo::deserialize($blob);
    }

DESCRIPTION

Top

This role provides provides a consistent way to use serialization modules to handle backend serialization.

See KiokuDB::Backend::Serialize::Storable, KiokuDB::Backend::Serialize::YAML and KiokuDB::Backend::Serialize::JSON for examples.

REQUIRED METHODS

Top

serializate $entry

Takes a KiokuDB::Entry as an argument. Should return a value suitable for storage by the backend.

deserialize $blob

Takes whatever serializate returned and should inflate and return a KiokuDB::Entry.

KiokuDB documentation Contained in the KiokuDB distribution. 
#!/usr/bin/perl

package KiokuDB::Backend::Serialize;
use Moose::Role;

use Moose::Util::TypeConstraints;

use namespace::clean -except => 'meta';

requires qw(serialize deserialize);

my %types = (
    storable => "KiokuDB::Serializer::Storable",
    json     => "KiokuDB::Serializer::JSON",
    yaml     => "KiokuDB::Serializer::YAML",
    memory   => "KiokuDB::Serializer::Memory",
);

coerce( __PACKAGE__,
    from Str => via {
        my $class = $types{lc($_)};
        Class::MOP::load_class($class);
        $class->new;
    },
    from HashRef => via {
        my %args = %$_;
        my $class = $types{lc(delete $args{format})};
        Class::MOP::load_class($class);
        $class->new(%args);
    },
);

__PACKAGE__

__END__