NAME

Data::TreeValidator::Constraints - A collection of constraints for validating data

SYNOPSIS

use Data::TreeValidator::Constraints qw( required );

DESCRIPTION

Constraints currently take a single form, a subroutine reference. If the data does not validate, an exception will be raised (which is caught by process methods). If an exception is not raised, the data will be assumed to be valid.

All methods below are available for importing into using modules

METHODS

required($input)

Checks that $input is defined, and stringifies to a true value (not the empty string)

AUTHOR

Oliver Charles

COPYRIGHT AND LICENSE

This software is copyright (c) 2010 by Oliver Charles <oliver.g.charles@googlemail.com>.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.