Redland RDF Application Framework - Perl RDF::Redland::Statement Class
RDF::Redland::Statement - Redland RDF Statement Class
  use RDF::Redland;
  my $statement1=new RDF::Redland::Statement($statement);
  my $statement2=new RDF::Redland::Statement($subject,$predicate,$object);
  ...
  if($statement->subject->equals($node)) { 
    ...
  }
Manipulate RDF statements which comprise three RDF::Redland::Node objects. Also used for partial statements which can have empty parts and are used for matching statements in statement queries of the model - see the the RDF::Redland::Model manpage.
- new NODE NODE NODE|STATEMENT
 
- Create a new statement from nodes or copy an existing statement.
- 
If three NODEs are given, make a new statement from them. Each Node can be a Redland::RDF:Node, a Redland::RDF::URI, a perl URI or a string literal. Otherwise STATEMENT must be an existing statement to copy. 
- clone
 
- Copy a RDF::Redland::Statement.
- subject [SUBJECT]
 
- Get/set the statement subject. When RDF::Redland::Node SUBJECT is given, sets the subject of the statement, otherwise returns a reference to the statement RDF::Redland::Node subject.
- predicate [PREDICATE]
 
- Get/set the statement predicate. When RDF::Redland::Node PREDICATE is given, sets the predicate of the statement, otherwise returns a reference to the statement RDF::Redland::Node predicate.
- object [OBJECT]
 
- Get/set the statement object. When RDF::Redland::Node OBJECT is given, sets the object of the statement, otherwise returns a reference to the statement RDF::Redland::Node object.
- as_string
 
- Return the statement formatted as a string (UTF-8 encoded).
- new_from_nodes SUBJECT PREDICATE OBJECT
 
- Create a new RDF::Redland::Statement with the given RDF::Redland::Node objects as parts (or undef when empty for a partial statement). Use $a=new RDF::Redland::Statement($subject, $predicate, $object);
- new_from_statement STATEMENT
 
- Create a new RDF::Redland::Statement object from RDF::Redland::Statement STATEMENT (copy constructor).
- 
Use $s=$old_statement->clone; 
the RDF::Redland::Node manpage
Dave Beckett - http://purl.org/net/dajobe/
Copyright 2000-2003 Dave Beckett, Institute for Learning and Research Technology, University of Bristol