Provided by: libattean-perl_0.019-1_all 
NAME
Attean - A Semantic Web Framework
VERSION
This document describes Attean version 0.019
SYNOPSIS
use v5.14;
use Attean;
use Attean::RDF qw(iri);
my $store = Attean->get_store('Memory')->new();
my $parser = Attean->get_parser('NTriples')->new();
# iterator of triples and quads
my $iter = $parser->parse_iter_from_io(\*STDIN);
# add a graph name to all triples
my $quads = $iter->as_quads(iri('http://graph-name/'));
$store->add_iter($quads);
my $model = Attean::QuadModel->new( store => $store );
my $iter = $model->get_quads();
while (my $quad = $iter->next) {
say $quad->object->ntriples_string;
}
DESCRIPTION
Attean provides APIs for parsing, storing, querying, and serializing Semantic Web (RDF and SPARQL) data.
METHODS
"get_store( $NAME )"
Attempts to find a Attean::API::Store implementation with the given $NAME. This is done using
Module::Pluggable and will generally be searching for class names "AtteanX::Store::$NAME".
Returns the full class name if a matching implementation is found, otherwise returns undef.
"get_serializer( $NAME )"
"get_serializer( media_type => $MEDIA_TYPE )"
Attempts to find a Attean::API::Serializer serializer class with the given $NAME, or that can
serialize files with the $MEDIA_TYPE media type.
Returns the full class name if a matching implementation is found, otherwise returns undef.
"get_parser( $NAME )"
"get_parser( filename => $FILENAME )"
"get_parser( media_type => $MEDIA_TYPE )"
Attempts to find a Attean::API::Parser parser class with the given $NAME, or that can parse files
with the same extension as $FILENAME, or that can parse files with the $MEDIA_TYPE media type.
Returns the full class name if a matching implementation is found, otherwise returns undef.
"negotiate_serializer ( request_headers => $request_headers, restrict => \@serializer_names, extend =>
\%media_types )"
Returns a two-element list containing an appropriate media type and Attean::API::Serializer class as
decided by HTTP::Negotiate. If the 'request_headers' key-value is supplied, the $request_headers is
passed to "HTTP::Negotiate::choose". The option 'restrict', set to a list of serializer names, can
be used to limit the serializers to choose from. Finally, an "<'extend'"> option can be set to a
hashref that contains MIME-types as keys and a custom variant as value. This will enable the user to
use this negotiator to return a type that isn't supported by any serializers. The subsequent code
will have to find out how to return a representation.
"acceptable_parsers ( handles => $item_role, prefer => $parser_role )"
Returns a string value expressing the media types that are acceptable to the parsers available to the
system. This string may be used as an 'Accept' HTTP header value.
If a "handles" role is supplied, only parsers that produce objects that conform to $item_role will be
included.
If a "prefer" role is supplied, only parsers that conform to $parser_role will be included.
Parsers are given a quality-value (expressing a preferred order or use) based on the roles each
parser consumes. Parsers consuming Attean::API::PullParser are preferred, while those consuming
Attean::API::AtOnceParser are not preferred. An exact ordering between parsers consuming similar
roles is currently undefined.
BUGS
Please report any bugs or feature requests to through the GitHub web interface at
<https://github.com/kasei/attean/issues>.
SEE ALSO
AUTHOR
Gregory Todd Williams "<gwilliams@cpan.org>"
COPYRIGHT
Copyright (c) 2014--2018 Gregory Todd Williams. This program is free software; you can redistribute it
and/or modify it under the same terms as Perl itself.