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

       <http://www.perlrdf.org/>

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.

perl v5.22.1                                       2016-02-04              Attean::API::AggregateExpression(3pm)