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.IX Title "RDF::Query::Algebra::Filter 3pm"
.TH RDF::Query::Algebra::Filter 3pm 2024-04-12 "perl v5.38.2" "User Contributed Perl Documentation"
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.SH NAME
RDF::Query::Algebra::Filter \- Algebra class for Filter expressions
.SH VERSION
.IX Header "VERSION"
This document describes RDF::Query::Algebra::Filter version 2.918.
.SH METHODS
.IX Header "METHODS"
Beyond the methods documented below, this class inherits methods from the
RDF::Query::Algebra class.
.ie n .IP """new ( $expression, $pattern )""" 4
.el .IP "\f(CWnew ( $expression, $pattern )\fR" 4
.IX Item "new ( $expression, $pattern )"
Returns a new Filter structure.
.ie n .IP """construct_args""" 4
.el .IP \f(CWconstruct_args\fR 4
.IX Item "construct_args"
Returns a list of arguments that, passed to this class' constructor,
will produce a clone of this algebra pattern.
.ie n .IP """expr""" 4
.el .IP \f(CWexpr\fR 4
.IX Item "expr"
Returns the filter expression.
.ie n .IP """pattern""" 4
.el .IP \f(CWpattern\fR 4
.IX Item "pattern"
Returns the filter pattern.
.ie n .IP """sse""" 4
.el .IP \f(CWsse\fR 4
.IX Item "sse"
Returns the SSE string for this algebra expression.
.ie n .IP """as_sparql""" 4
.el .IP \f(CWas_sparql\fR 4
.IX Item "as_sparql"
Returns the SPARQL string for this algebra expression.
.ie n .IP """as_hash""" 4
.el .IP \f(CWas_hash\fR 4
.IX Item "as_hash"
Returns the query as a nested set of plain data structures (no objects).
.ie n .IP """as_spin ( $model )""" 4
.el .IP "\f(CWas_spin ( $model )\fR" 4
.IX Item "as_spin ( $model )"
Adds statements to the given model to represent this algebra object in the
SPARQL Inferencing Notation (<http://www.spinrdf.org/>).
.ie n .IP """type""" 4
.el .IP \f(CWtype\fR 4
.IX Item "type"
Returns the type of this algebra expression.
.ie n .IP """referenced_variables""" 4
.el .IP \f(CWreferenced_variables\fR 4
.IX Item "referenced_variables"
Returns a list of the variable names used in this algebra expression.
.ie n .IP """potentially_bound""" 4
.el .IP \f(CWpotentially_bound\fR 4
.IX Item "potentially_bound"
Returns a list of the variable names used in this algebra expression that will
bind values during execution.
.ie n .IP """definite_variables""" 4
.el .IP \f(CWdefinite_variables\fR 4
.IX Item "definite_variables"
Returns a list of the variable names that will be bound after evaluating this algebra expression.
.ie n .IP """is_solution_modifier""" 4
.el .IP \f(CWis_solution_modifier\fR 4
.IX Item "is_solution_modifier"
Returns true if this node is a solution modifier.
.SH AUTHOR
.IX Header "AUTHOR"
.Vb 1
\& Gregory Todd Williams <gwilliams@cpan.org>
.Ve