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rdf::trine::node::formula(3pm) [debian man page]

RDF::Trine::Node::Formula(3pm)				User Contributed Perl Documentation			    RDF::Trine::Node::Formula(3pm)

NAME

       RDF::Trine::Node::Formula - RDF Node class for formulae / graph literals

DESCRIPTION

       Formulae are implemented as a subclass of literals. Parts of Trine that have no special knowledge about formulae (e.g. the Turtle
       serialiser) will just see them as literals with a particular datatype URI (http://open.vocab.org/terms/Formula).

       If your code needs to detect formulae nodes, try:

	 use Scalar::Util qw[blessed];
	 if (blessed($node) && $node->isa('RDF::Trine::Node::Formula'))
	   { ... do stuff to formulae ... }

       or perhaps

	 use Scalar::Util qw[blessed];
	 if (blessed($node) && $node->can('pattern'))
	   { ... do stuff to formulae ... }

METHODS

       "new ( $pattern )"
	   Returns a new Formula structure. This is a subclass of RDF::Trine::Node::Literal.

	   $pattern is an RDF::Trine::Pattern or a string capable of being parsed with RDF::Trine::Parser::Notation3->parse_formula.

       "pattern ( $node )"
	   Returns the formula as an RDF::Trine::Pattern.

       "forAll"
	   Returns the a list of nodes with the @forAll quantifier.

	   This is a fairly obscure bit of N3 semantics.

       "forSome"
	   Returns the a list of nodes with the @forSome quantifier.

	   This is a fairly obscure bit of N3 semantics.

       "as_literal_notation"
	   Returns the formula in Notation-3-like syntax, excluding the wrapping "{"..."}".

	   Uses absolute URIs whenever possible, avoiding relative URI references, QNames and keywords.

       "from_literal_notation ( $string, $base )"
	   Modifies the formula's value using Notation 3 syntax, excluding the wrapping "{"..."}".

       "equal ( $node )"
	   Returns true if the two nodes are equal, false otherwise.

	   TODO - really need a "not equal, but equivalent" method.

AUTHOR

       Toby Inkster  "<tobyink@cpan.org>"

       Based on RDF::Trine::Node::Literal by Gregory Todd Williams.

COPYRIGHT AND LICENCE

       Copyright (c) 2006-2010 Gregory Todd Williams.

       Copyright (c) 2010-2011 Toby Inkster.

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

DISCLAIMER OF WARRANTIES

       THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
       MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.

perl v5.14.2							    2011-10-22					    RDF::Trine::Node::Formula(3pm)

Check Out this Related Man Page

RDF::Trine::Serializer::NTriples(3pm)			User Contributed Perl Documentation		     RDF::Trine::Serializer::NTriples(3pm)

NAME

       RDF::Trine::Serializer::NTriples - N-Triples Serializer

VERSION

       This document describes RDF::Trine::Serializer::NTriples version 1.000

SYNOPSIS

	use RDF::Trine::Serializer::NTriples;
	my $serializer = RDF::Trine::Serializer::NTriples->new();

DESCRIPTION

       The RDF::Trine::Serializer::NTriples class provides an API for serializing RDF graphs to the N-Triples syntax.

METHODS

       Beyond the methods documented below, this class inherits methods from the RDF::Trine::Serializer class.

       "new"
	   Returns a new N-Triples serializer object.

       "serialize_model_to_file ( $fh, $model )"
	   Serializes the $model to N-Triples, printing the results to the supplied filehandle "<$fh">.

       "serialize_model_to_string ( $model )"
	   Serializes the $model to N-Triples, returning the result as a string.

       "serialize_iterator_to_file ( $file, $iter )"
	   Serializes the iterator to N-Triples, printing the results to the supplied filehandle "<$fh">.

       "serialize_iterator_to_string ( $iter )"
	   Serializes the iterator to N-Triples, returning the result as a string.

       "statement_as_string ( $st )"
	   Returns a string with the supplied RDF::Trine::Statement object serialized as N-Triples, ending in a DOT and newline.

       "serialize_node ( $node )"
	   Returns a string containing the N-Triples serialization of $node.

BUGS

       Please report any bugs or feature requests to through the GitHub web interface at <https://github.com/kasei/perlrdf/issues>.

SEE ALSO

       http://www.w3.org/TR/rdf-testcases/#ntriples <http://www.w3.org/TR/rdf-testcases/#ntriples>

AUTHOR

       Gregory Todd Williams  "<gwilliams@cpan.org>"

COPYRIGHT

       Copyright (c) 2006-2012 Gregory Todd Williams. This program is free software; you can redistribute it and/or modify it under the same terms
       as Perl itself.

perl v5.14.2							    2012-06-29				     RDF::Trine::Serializer::NTriples(3pm)
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