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

RDF::Query::Parser::RDQL(3pm)				User Contributed Perl Documentation			     RDF::Query::Parser::RDQL(3pm)

NAME

       RDF::Query::Parser::RDQL - An RDQL parser for RDF::Query

VERSION

       This document describes RDF::Query::Parser::RDQL version 2.908.

METHODS

       "new ( $query_object ) "
	   Returns a new RDF::Query object.

       "parse ( $query ) "
	   Parses the supplied RDQL query string, returning a parse tree.

REVISION HISTORY

	$Log$
	Revision 1.5  2006/01/11 06:03:45  greg
	- Removed use of Data::Dumper::Simple.

	Revision 1.4  2005/05/08 08:26:09  greg
	- Added initial support for SPARQL ASK, DESCRIBE and CONSTRUCT queries.
	  - Added new test files for new query types.
	- Added methods to bridge classes for creating statements and blank nodes.
	- Added as_string method to bridge classes for getting string versions of nodes.
	- Broke out triple fixup code into fixup_triple_bridge_variables().
	- Updated FILTER test to use new Geo::Distance API.

	Revision 1.3  2005/04/26 02:54:40  greg
	- added core support for custom function constraints support
	- added initial SPARQL support for custom function constraints
	- SPARQL variables may now begin with the '$' sigil
	- broke out URL fixups into its own method
	- added direction support for ORDER BY (ascending/descending)
	- added 'next', 'current', and 'end' to Stream API

	Revision 1.2  2005/04/25 00:59:29  greg
	- streams are now objects usinig the Redland QueryResult API
	- RDF namespace is now always available in queries
	- row() now uses a stream when calling execute()
	- check_constraints() now copies args for recursive calls (instead of pass-by-ref)
	- added ORDER BY support to RDQL parser
	- SPARQL constraints now properly use the 'FILTER' keyword
	- SPARQL constraints can now use '&&' as an operator
	- SPARQL namespace declaration is now optional

	Revision 1.1  2005/04/21 02:21:44  greg
	- major changes (resurecting the project)
	- broke out the query parser into it's own RDQL class
	- added initial support for a SPARQL parser
	  - added support for blank nodes
	  - added lots of syntactic sugar (with blank nodes, multiple predicates and objects)
	- moved model-specific code into RDF::Query::Model::*
	- cleaned up the model-bridge code
	- moving over to redland's query API (pass in the model when query is executed)

AUTHOR

	Gregory Williams <gwilliams@cpan.org>

perl v5.14.2							    2012-01-31					     RDF::Query::Parser::RDQL(3pm)

Check Out this Related Man Page

RDF::Query::Algebra::Filter(3pm)			User Contributed Perl Documentation			  RDF::Query::Algebra::Filter(3pm)

NAME

       RDF::Query::Algebra::Filter - Algebra class for Filter expressions

VERSION

       This document describes RDF::Query::Algebra::Filter version 2.908.

METHODS

       Beyond the methods documented below, this class inherits methods from the RDF::Query::Algebra class.

       "new ( $expression, $pattern )"
	   Returns a new Filter structure.

       "construct_args"
	   Returns a list of arguments that, passed to this class' constructor, will produce a clone of this algebra pattern.

       "expr"
	   Returns the filter expression.

       "pattern"
	   Returns the filter pattern.

       "sse"
	   Returns the SSE string for this algebra expression.

       "as_sparql"
	   Returns the SPARQL string for this algebra expression.

       "as_hash"
	   Returns the query as a nested set of plain data structures (no objects).

       "as_spin ( $model )"
	   Adds statements to the given model to represent this algebra object in the SPARQL Inferencing Notation (<http://www.spinrdf.org/>).

       "type"
	   Returns the type of this algebra expression.

       "referenced_variables"
	   Returns a list of the variable names used in this algebra expression.

       "potentially_bound"
	   Returns a list of the variable names used in this algebra expression that will bind values during execution.

       "definite_variables"
	   Returns a list of the variable names that will be bound after evaluating this algebra expression.

       "is_solution_modifier"
	   Returns true if this node is a solution modifier.

AUTHOR

	Gregory Todd Williams <gwilliams@cpan.org>

perl v5.14.2							    2012-01-31					  RDF::Query::Algebra::Filter(3pm)
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