Data::Conveyor::Transaction::Factory - Stage-based conveyor-belt-like ticket handling system

use 5.008;
use strict;
use warnings;

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

use Error::Hierarchy::Util 'assert_defined';
use parent 'Class::Scaffold::Factory';

# Subclasses have to override - and therefore define - the mappings of object
# types and commands to transaction handler classes.
# For the txsel, it's ok if there is no handler for a given situation, so just
# map to Class::Null
use constant TXSEL_CLASS_FOR_TRANSACTION => (_AUTO => 'Class::Null',);

sub gen_txsel_handler {
    my ($self, $object_type, $command, $context, %args) = @_;

    # object_type and command can be normal strings, shouldn't enforce
    # assert_object_type().
    assert_defined $object_type, 'called without object_type';
    assert_defined $command,     'called without command';
    assert_defined $context,     'called without context';
    $self->gen_handler(
        TXSEL_CLASS_FOR_TRANSACTION => [ $object_type, $command, $context ],
        %args
    );
}
1;


__END__