rdf::redland::query(3pm) [debian man page]

RDF::Redland::Query(3pm)				User Contributed Perl Documentation				  RDF::Redland::Query(3pm)

NAME

       RDF::Redland::Query - Redland RDF Syntax Query Class

SYNOPSIS

	 use RDF::Redland;

	 ...
	 my $query=new RDF::Redland::Query($query_string); # default query language
	 my $results=$query->execute($model);
	 # or my $results=$model->query_execute($query);
	 while(!$results->finished) {
	   for (my $i=0; $i < $results->bindings_count(); $i++) {
	     my $name=$results->binding_name($i);
	     my $value=$results->binding_value($i);
	     # ... do something with the results
	   }
	   $results->next_result;
	 }

DESCRIPTION

       This class represents queries of various syntaxes over an RDF::Redland::Model returning a sequence of results that (currently) bind
       variable names to RDF::Redland::Node values.

CONSTRUCTORS

       new QUERY-STRING [BASE-URI [QUERY-LANG-URI [QUERY-LANG]]]
	   Create a new RDF::Redland::Query object for a query string QUERY-STRING with optional base URI BASE-URI IN QUERY language QUERY-LANG or
	   query language URI QUERY-LANG-URI (both can be undef).  If QUERY-LANG-URI is omitted, the current directory is used as the base URI.
	   If QUERY-LANG-NAME is undef, the default query language "rdql" is used.  If BASE-URI is omitted, no base URI is used.

METHODS

       execute MODEL
	   Run the query against model MODEL returning a RDF::Redland::QueryResults object or undef on failure.

SEE ALSO

       RDF::Redland::QueryResults

AUTHOR

       Dave Beckett - http://www.dajobe.org/

perl v5.14.2							    2011-02-04						  RDF::Redland::Query(3pm)

RDF::Redland::Serializer(3pm)				User Contributed Perl Documentation			     RDF::Redland::Serializer(3pm)

NAME

       RDF::Redland::Serializer - Redland RDF Serializing to Syntax Class

SYNOPSIS

	 use RDF::Redland;

	 ...
	 my $serializer=new RDF::Redland::Serializer("ntriples");

	 $serializer->serialize_model_to_file("foo.rdf", $base_uri, $model);

DESCRIPTION

       This class represents serializers that turn RDF graphs into various syntaxes.  from an RDF::Redland::Model object.

CONSTRUCTORS

       new [NAME [MIME_TYPE [URI]]]
	   Create a new RDF::Redland::Serializer object for a syntax serializer named NAME, with MIME Type MIME_TYPE and/or URI URI.  Any field
	   can be undef or omitted; if all are omitted, the default serializer is used, currently 'ntriples'.

METHODS

       serialize_model_to_file FILENAME BASE_URI MODEL
	   Serialize the RDF Graph MODEL as syntax with the base RDF::Redland::URI BASE_URI to file FILENAME.

       serialize_model_to_string BASE-URI MODEL
	   Serialize the RDF Graph MODEL to a syntax.  If no serializer name is given, the default serializer RDF/XML is used.

       set_namespace PREFIX URI
	   Define a namespace URI with the supplied PREFIX for use in serializing an RDF Graph.

       feature URI [VALUE]
	   Get/set a serializer feature.  The feature is named via RDF::Redland::URI URI and the value is a string.  If VALUE is given, the
	   feature is set to that value, otherwise the current value is returned.

SEE ALSO

       RDF::Redland::Parser, RDF::Redland::URI

AUTHOR

       Dave Beckett - http://www.dajobe.org/

perl v5.14.2							    2011-02-04					     RDF::Redland::Serializer(3pm)