RDF::Server::Role::Model - triple store role

RDF-Server documentation Contained in the RDF-Server distribution.

Index

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NAME

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RDF::Server::Role::Model - triple store role

SYNOPSIS

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 package My::TripleStore;

 use Moose;
 with 'RDF::Server::Role::Model';

 has store => (
    is => 'rw',
    isa => 'RDF::Core::Model',
    default => sub {
        new RDF::Core::Model( Storage => new RDF::Core::Storage::Memory )
    }
 );

 sub has_triple { }
 sub resource { }
 sub resources { }

 ...

DESCRIPTION

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This role defines the interface expected by the RDF::Server framework when working with a triple store. RDF::Server comes with several built for current RDF storage modules. See RDF::Server::Model.

METHODS

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resource ($namespace, $id) : Resource
resources ($namespace) : Iterator
resource_exists ($namespace, $id) : Bool
add_triple ($s, $p, $o) : Bool
has_triple ($s, $p, $o) : Bool

Returns true if the indicated triple is present in the triple store. Any of the parameters may be array references to two-element arrays of the form [ $namespace, $localvalue ].

AUTHOR

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James Smith, <jsmith@cpan.org>

LICENSE

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Copyright (c) 2008 Texas A&M University.

This library is free software. You can redistribute it and/or modify it under the same terms as Perl itself.

RDF-Server documentation Contained in the RDF-Server distribution. 
package RDF::Server::Role::Model;

use Moose::Role;

use MooseX::Types::Moose qw( Str HashRef Bool Object );
use Class::MOP;

has base_uri => (
    is => 'rw',
    isa => Str,
    lazy => 1,
    default => sub { (shift) -> namespace }
);

has namespaces => (
    is => 'rw',
    isa => HashRef,
    lazy => 1,
    default => sub { +{ } },
);

has namespace => (
    is => 'rw',
    isa => 'Str',
    required => 1
);

has expand_qnames => (
    is => 'rw',
    isa => Bool,
    lazy => 1,
    default => sub { 0 },
);

has uuid_generator => (
    is => 'rw',
    isa => Object,
    lazy => 1,
    default => sub {
        Class::MOP::load_class('Data::UUID');
        new Data::UUID;
    },
    handles => {
        'new_uuid' => 'create_str'
    }
);

requires 'resource';

requires 'resources';

requires 'resource_exists';

# has_triple(s,p,o)
# where s|p|o can be a string or arrayref ([ nameSpace, localName ])
requires 'has_triple';

requires 'add_triple';

requires 'get_triples';

1;

__END__