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.IX Title "RDF::Query::Expression 3pm"
.TH RDF::Query::Expression 3pm 2024-04-12 "perl v5.38.2" "User Contributed Perl Documentation"
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.SH NAME
RDF::Query::Expression \- Class for Expr expressions
.SH VERSION
.IX Header "VERSION"
This document describes RDF::Query::Expression version 2.918.
.SH METHODS
.IX Header "METHODS"
.ie n .IP """new ( $op, @operands )""" 4
.el .IP "\f(CWnew ( $op, @operands )\fR" 4
.IX Item "new ( $op, @operands )"
Returns a new Expr 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 """op""" 4
.el .IP \f(CWop\fR 4
.IX Item "op"
Returns the operator of the expression.
.ie n .IP """operands""" 4
.el .IP \f(CWoperands\fR 4
.IX Item "operands"
Returns a list of the operands of the expression.
.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 """explain""" 4
.el .IP \f(CWexplain\fR 4
.IX Item "explain"
Returns a string serialization of the expression appropriate for display on the
command line. This method is primarily used by the \f(CW\*(C`explain\*(C'\fR method of
the subclasses of RDF::Query::Plan.
.ie n .IP """as_hash""" 4
.el .IP \f(CWas_hash\fR 4
.IX Item "as_hash"
Returns the expression as a nested set of plain data structures (no objects).
.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 """nonaggregated_referenced_variables""" 4
.el .IP \f(CWnonaggregated_referenced_variables\fR 4
.IX Item "nonaggregated_referenced_variables"
Returns a list of the variable names used in this algebra expression except
those used as aliases for aggregate operations.
.SH AUTHOR
.IX Header "AUTHOR"
.Vb 1
\& Gregory Todd Williams <gwilliams@cpan.org>
.Ve