NAME
Attean::API::AggregateExpression - Role representing an aggregate expression tree
VERSION
This document describes Attean::API::AggregateExpression version 0.012
SYNOPSIS
use v5.14;
use Attean;
DESCRIPTION
This is a Moo role representing aggregate expressions.
ROLES
This role consumes Attean::API::DirectedAcyclicGraph.
REQUIRED METHODS
Classes consuming this role must provide the following methods:
operator()
-
The name of the aggregate operator.
scalar_vars()
-
A HASH reference of scalar variables. The only scalar variable defined for SPARQL 1.1 is
'seperator'
, a string separator used with the GROUP_CONCAT aggregate.
BUGS
Please report any bugs or feature requests to through the GitHub web interface at https://github.com/kasei/attean/issues.
SEE ALSO
AUTHOR
Gregory Todd Williams <gwilliams@cpan.org>
COPYRIGHT
Copyright (c) 2014--2016 Gregory Todd Williams. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.