Attean::API::AggregateExpression
Role representing an aggregate expression tree
- Provided by: libattean-perl (Version: 0.035-1)
- Report a bug
VERSION
This document describes Attean::API::AggregateExpression version 0.035
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>.
AUTHOR
Gregory Todd Williams "<gwilliams@cpan.org>"
COPYRIGHT
Copyright (c) 2014--2022 Gregory Todd Williams. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.