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Man Pages


Manual Reference Pages  -  RDFSTORE::STATEMENT (3)

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NAME

RDFStore::Statement - An RDF Statement implementation

CONTENTS

SYNOPSIS



        use RDFStore::Statement;
        use RDFStore::Literal;
        use RDFStore::Resource;
        my $statement = new RDFStore::Statement(
                                new RDFStore::Resource("http://www.w3.org/Home/Lassila"),
                                new RDFStore::Resource("http://description.org/schema/","Creator"),
                                new RDFStore::Literal("Ora Lassila") );
        my $statement1 = new RDFStore::Statement(
                                new RDFStore::Resource("http://www.w3.org"),
                                new RDFStore::Resource("http://description.org/schema/","Publisher"),
                                new RDFStore::Literal("World Wide Web Consortium") );

        my $subject = $statement->subject;
        my $predicate = $statement->predicate;
        my $object = $statement->object;

        print $statement->toString." is ";
        print "not"
                unless $statement->equals($statement1);
        print " equal to ".$statement1->toString."\n";



DESCRIPTION

An RDF Statement implementation.

METHODS

new ( SUBJECT, PREDICATE, OBJECT ) This is a class method, the constructor for RDFStore::Statement. SUBJECT and PREDICATE must be two RDFStore::Resource while OBJECT is RDFStore::RDFNode
subject Return the RDFStore::Resource that is the RDF Subject/Resource of the Statement
predicate Return the RDFStore::Resource that is the RDF Predicate/Property of the Statement/Resource
object Return the RDFStore::RDFNode that is the RDF Object/Property-Value of the Statement/Resource
getURI Return the URI identifing the RDF Statement; this is useful either for RDF reification (if ever it will be used :) and to treat RDF Statement as resources and then make composite statements....somehow ;)
getNamespace Return undef
getLocalName Return the label of the RDF Statement as a URN identifier with the digest hex encoded i.e. urn:rdf:SHA-1:12uf2229829289229eee
getLabel Return the label of the RDF Statement as a URN identifier with the digest hex encoded i.e. urn:rdf:SHA-1:12uf2229829289229eee
toString Return the textual represention of the RDF Statement i.e. triple(http://blaa.org, http://purl.org/dc/elements/1.1/title, Crapy site)
getDigest Return a Cryptographic Digest (SHA-1 by default) of the Statement as defined in http://nestroy.wi-inf.uni-essen.de/rdf/sum_rdf_api/#K31
equals Compare two RDF Statements.

SEE ALSO

RDFStore::Literal(3) RDFStore::Resource(3) RDFStore(3) RDFStore::Digest::Digestable(3) RDFStore::RDFNode(3)

ABOUT RDF



 http://www.w3.org/TR/rdf-primer/

 http://www.w3.org/TR/rdf-mt

 http://www.w3.org/TR/rdf-syntax-grammar/

 http://www.w3.org/TR/rdf-schema/

 http://www.w3.org/TR/1999/REC-rdf-syntax-19990222 (obsolete)



AUTHOR



        Alberto Reggiori <areggiori@webweaving.org>



POD ERRORS

Hey! <B>The above document had some coding errors, which are explained below:B>
Around line 162: You forgot a ’=back’ before ’=head1’
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perl v5.20.3 RDFSTORE::STATEMENT (3) 2006-06-19

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