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package FactSubClasses;
use strict;
use warnings;
use Metabase::Fact::String;
use Metabase::Fact::Hash;
package FactOne;
our @ISA = ('Metabase::Fact::String');
sub content_as_bytes { return reverse($_[0]->{content}) };
sub content_from_bytes { return reverse($_[1]) };
package FactTwo;
our @ISA = ('Metabase::Fact::String');
sub content_as_bytes { return reverse($_[0]->{content}) };
sub content_from_bytes { return reverse($_[1]) };
package FactThree;
our @ISA = ('Metabase::Fact::String');
sub validate_content {
$_[0]->SUPER::validate_content;
die "content not positive length" unless length $_[0]->content > 0;
}
sub content_metadata {
return { 'length' => [ '//num' => length $_[0]->content ] }
}
package FactFour;
our @ISA = ('Metabase::Fact::Hash');
sub required_keys {qw/ first /};
sub optional_keys {qw/ second /};
sub content_metadata {
return { 'size' => [ '//num' => scalar keys %{ $_[0]->content } ] }
}
1;
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