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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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