Data::Conveyor::Service::Result::Container - Stage-based conveyor-belt-like ticket handling system

use 5.008;
use strict;
use warnings;

package Data::Conveyor::Service::Result::Container;
BEGIN {
  $Data::Conveyor::Service::Result::Container::VERSION = '1.103130';
}
# ABSTRACT: Stage-based conveyor-belt-like ticket handling system

#
# Contains a list of other result objects, which can include other
# containers, since they derive from the same subclass as "normal" service
# result objects such as scalars and tables.
use YAML;
use parent 'Data::Conveyor::Service::Result';

# don't subclass Data::Container, since we have a slightly different API - we
# use 'result' instead of 'items', for example.
__PACKAGE__->mk_array_accessors(qw(result));

# concatenate the stringifications of the result list
sub result_as_string {
    my $self = shift;
    join "\n" => map { "$_" } $self->result;
}

# Here exception() is a method, not an attribute. You can't set an exception
# on a container directly; rather, if elements of the result list have
# exceptions, they will be returned in an exception container. If there are no
# exceptions in the results, undef will be returned.
sub exception {
    my $self = shift;
    my @exception = grep { defined } map { $_->exception } $self->result;
    return unless @exception;
    my $container = $self->delegate->make_obj('exception_container');
    $container->items(@exception);
    $container;
}
1;


__END__