NAME

       Config::Model::Value::LayeredInclude - Include a sub layer configuration

VERSION

       version 2.047

SYNOPSIS

           # in a model declaration:
           'element' => [
             'include' => {
               'class' => 'Config::Model::Value::LayeredInclude',

               # usual Config::Model::Value parameters
               'type' => 'leaf',
               'value_type' => 'uniline',
               'convert' => 'lc',
               'summary' => 'Include file for cascaded configuration',
               'description' => 'To support multiple variants of ...'
             },
           ]

DESCRIPTION

       This class inherits from Config::Model::Value. It overrides store_cb to trigger a refresh
       of layered value when value is actually changed. I.e. changing this value will reload the
       refered configuration file and use its values as default value. This class was designed to
       cope with multistrap <http://wiki.debian.org/Multistrap> configuration.

   CAUTION
       A configuration file can support 2 kinds of include:

       •   Layered include which sets default values like multistrap or ssh. These includes are
           read-only.

       •   Real includes like "apache". In this cases modified configuration items can be written
           to included files.

       This class works only with the first type

AUTHOR

       Copyright 2011,2013 Dominique Dumont <ddumont at cpan.org>

AUTHOR

       Dominique Dumont

COPYRIGHT AND LICENSE

       This software is Copyright (c) 2013 by Dominique Dumont.

       This is free software, licensed under:

         The GNU Lesser General Public License, Version 2.1, February 1999