/usr/share/perl5/RDF/Trine.pm is in librdf-trine-perl 0.138-1.
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# -----------------------------------------------------------------------------
=head1 NAME
RDF::Trine - An RDF Framework for Perl
=head1 VERSION
This document describes RDF::Trine version 0.138
=head1 SYNOPSIS
use RDF::Trine;
=head1 DESCRIPTION
RDF::Trine provides an RDF framework with an emphasis on extensibility, API
stability, and the presence of a test suite. The package consists of several
components:
=over 4
=item * RDF::Trine::Model - RDF model providing access to a triple store.
=item * RDF::Trine::Parser - RDF parsers for various serialization formats including RDF/XML, Turtle, RDFa, and RDF/JSON.
=item * RDF::Trine::Store::Memory - An in-memory, non-persistant triple store.
=item * RDF::Trine::Store::DBI - A triple store for MySQL and SQLite, based on the Redland schema.
=item * RDF::Trine::Iterator - Iterator classes for variable bindings and RDF statements, used by RDF::Trine::Store, RDF::Trine::Model, and RDF::Query.
=item * RDF::Trine::Namespace - A convenience class for easily constructing RDF node objects from URI namespaces.
=back
=cut
package RDF::Trine;
use 5.008003;
use strict;
use warnings;
no warnings 'redefine';
use Module::Load::Conditional qw[can_load];
our ($debug, @ISA, $VERSION, @EXPORT_OK);
BEGIN {
$debug = 0;
$VERSION = '0.138';
require Exporter;
@ISA = qw(Exporter);
@EXPORT_OK = qw(iri blank literal variable statement store UNION_GRAPH NIL_GRAPH);
can_load( modules => {
'RDF::Redland' => undef,
'RDF::Trine::Store::Redland' => undef,
'RDF::Trine::Parser::Redland' => undef,
} );
}
use constant UNION_GRAPH => 'tag:gwilliams@cpan.org,2010-01-01:RT:ALL';
use constant NIL_GRAPH => 'tag:gwilliams@cpan.org,2010-01-01:RT:NIL';
use Log::Log4perl qw(:easy);
Log::Log4perl->easy_init($ERROR);
use RDF::Trine::Graph;
use RDF::Trine::Parser;
use RDF::Trine::Serializer;
use RDF::Trine::Node;
use RDF::Trine::Statement;
use RDF::Trine::Namespace;
use RDF::Trine::NamespaceMap;
use RDF::Trine::Iterator;
use RDF::Trine::Store;
use RDF::Trine::Error;
use RDF::Trine::Model;
sub _uniq {
my %seen;
my @data;
foreach (@_) {
push(@data, $_) unless ($seen{ $_ }++);
}
return @data;
}
=head1 FUNCTIONS
=over 4
=item C<< iri ( $iri ) >>
Returns a RDF::Trine::Node::Resource object with the given IRI value.
=cut
sub iri {
my $iri = shift;
return RDF::Trine::Node::Resource->new( $iri );
}
=item C<< blank ( $id ) >>
Returns a RDF::Trine::Node::Blank object with the given identifier.
=cut
sub blank {
my $id = shift;
return RDF::Trine::Node::Blank->new( $id );
}
=item C<< literal ( $value, $lang, $dt ) >>
Returns a RDF::Trine::Node::Literal object with the given value and optional
language/datatype.
=cut
sub literal {
return RDF::Trine::Node::Literal->new( @_ );
}
=item C<< variable ( $name ) >>
Returns a RDF::Trine::Node::Variable object with the given variable name.
=cut
sub variable {
my $name = shift;
return RDF::Trine::Node::Variable->new( $name );
}
=item C<< statement ( @nodes ) >>
Returns a RDF::Trine::Statement object with the supplied node objects.
=cut
sub statement {
my @nodes = @_;
if (scalar(@nodes) == 4) {
return RDF::Trine::Statement::Quad->new( @nodes );
} else {
return RDF::Trine::Statement->new( @nodes );
}
}
=item C<< store ( $config ) >>
Returns a RDF::Trine::Store object based on the supplied configuration string.
See L<RDF::Trine::Store> for more information on store configuration strings.
=cut
sub store {
my $config = shift;
return RDF::Trine::Store->new_with_string( $config );
}
1; # Magic true value required at end of module
__END__
=back
=head1 BUGS
Please report any bugs or feature requests to
C<< <gwilliams@cpan.org> >>.
=head1 SEE ALSO
L<http://www.perlrdf.org/>
=head1 AUTHOR
Gregory Todd Williams C<< <gwilliams@cpan.org> >>
=head1 COPYRIGHT
Copyright (c) 2006-2010 Gregory Todd Williams. This
program is free software; you can redistribute it and/or modify it under
the same terms as Perl itself.
=cut
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