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RDF::Redland::Query(3)User Contributed Perl DocumentatioRDF::Redland::Query(3)

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 v5.14.1			  2011-02-04		RDF::Redland::Query(3)

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