table of contents
Attean::API::AggregateExpression(3pm) | User Contributed Perl Documentation | Attean::API::AggregateExpression(3pm) |
NAME¶
Attean::API::AggregateExpression - Role representing an aggregate expression tree
VERSION¶
This document describes Attean::API::AggregateExpression version 0.033
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--2022 Gregory Todd Williams. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
2022-10-06 | perl v5.34.0 |