package Badger::Data::Facet::Text::Length;

use Badger::Data::Facet::Class
    version   => 0.01,
    type      => 'text',
    args      => 'length';


sub validate {
    my ($self, $text, $type) = @_;
    
    return CORE::length($$text) == $self->{ length } 
        || $self->invalid_msg( 
               wrong_length => $type || 'Text', 
               $self->{ length }, CORE::length($$text) 
           );
}

1;

__END__

=head1 NAME

Badger::Data::Facet::Text::Length - validation facet for text length

=head1 DESCRIPTION

This module implements a validation facets that checks the length of a
text value to assert that it is equal to a pre-defined length.

=head1 METHODS

This module implement the following method in addition to those inherited from
the L<Badger::Data::Facet::Text>, L<Badger::Data::Facet> and L<Badger::Base>
base classes.

=head2 validate($text_ref, $type)

This method validates that the length (i.e. number of characters) of the text
passed by reference as the first argument equals the pre-defined length.

=head1 AUTHOR

Andy Wardley L<http://wardley.org/>

=head1 COPYRIGHT

Copyright (C) 2001-2012 Andy Wardley.  All Rights Reserved.

This module is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.

=head1 SEE ALSO

L<Badger::Base>,
L<Badger::Data::Facet>,
L<Badger::Data::Facet::Text>.

=cut

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