Metabase::Fact::String(3) fact subtype for simple strings


version 0.025


# defining the fact class
package MyFact;
use Metabase::Fact::String;
our @ISA = qw/Metabase::Fact::String/;
sub content_metadata {
my $self = shift;
return {
'size' => [ '//num' => length $self->content ],
sub validate_content {
my $self = shift;
die __PACKAGE__ . " content length must be greater than zero\n"
if length $self->content < 0;

...and then...

  # using the fact class
  my $fact = MyFact->new(
    resource => 'RJBS/Metabase-Fact-0.001.tar.gz',
    content  => "Hello World",


Base class for facts that are just strings of text. Strings must be characters, not bytes.

You may wish to implement a "content_metadata" method to generate metadata about the hash contents.

You should also implement a "validate_content" method to validate the structure of the hash you're given.


Please report any bugs or feature using the CPAN Request Tracker. Bugs can be submitted through the web interface at <>

When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.



This software is Copyright (c) 2016 by David Golden.

This is free software, licensed under:

  The Apache License, Version 2.0, January 2004