RDF::Query::Expression - Class for Expr expressions
This document describes RDF::Query::Expression version 2.911.
new ( $op, @operands )
Returns a new Expr structure.
Returns a list of arguments that, passed to this class' constructor, will produce a clone of this algebra pattern.
Returns the operator of the expression.
Returns a list of the operands of the expression.
Returns the SSE string for this algebra expression.
Returns a string serialization of the expression appropriate for display on the command line.
This method is primarily used by the
explain method of the subclasses of RDF::Query::Plan.
Returns the type of this algebra expression.
Returns a list of the variable names used in this algebra expression.
Returns a list of the variable names used in this algebra expression except those used as aliases for aggregate operations.
Gregory Todd Williams <email@example.com>