/ 
Config-Model-2.144
River stage two • 11 direct dependents • 11 total dependents
/ Config::Model::AnyThing

NAME

Config::Model::AnyThing - Base class for configuration tree item

VERSION

version 2.144

SYNOPSIS

# internal class

DESCRIPTION

This class must be inherited by all nodes or leaves of the configuration tree.

AnyThing provides some methods and no constructor.

Introspection methods

element_name

Returns the element name that contain this object.

index_value

For object stored in an array or hash element, returns the index (or key) containing this object.

parent

Returns the node containing this object. May return undef if parent is called on the root of the tree.

container

A bit like parent, this method returns the element containing this object. See "container_type"

container_type

Returns the type (e.g. list or hash or leaf or node or warped_node) of the element containing this object.

root

Returns the root node of the configuration tree.

location

Returns the node location in the configuration tree. This location conforms with the syntax defined by grab method.

location_short

Returns the node location in the configuration tree. This location truncates long indexes to be readable. It cannot be used by grab method.

composite_name

Return the element name with its index (if any). I.e. returns foo:bar or foo.

composite_name_short

Return the element name with its index (if any). Too long indexes are truncated to be readable.

Annotation

Annotation is a way to store miscellaneous information associated to each node. (Yeah... comments). Reading and writing annotation makes sense only if they can be read from and written to the configuration file, hence the need for the following method:

backend_support_annotation

Returns 1 if at least one of the backends attached to a parent node support to read and write annotations (aka comments) in the configuration file.

support_annotation

Returns 1 if at least one of the backends support to read and write annotations (aka comments) in the configuration file.

annotation

Parameters: ( [ note1, [ note2 , ... ] ] )

Without argument, return a string containing the object's annotation (or an empty string).

With several arguments, join the arguments with "\n", store the annotations and return the resulting string.

load_pod_annotation

Parameters: ( pod_string )

Load annotations in configuration tree from a pod document. The pod must be in the form:

=over

=item path

Annotation text

=back

clear_annotation

Clear the annotation of an element

Information management

notify_change

Notify the instance of semantic changes. Parameters are:

old

old value. (optional)

new

new value (optional)

path

Location of the changed parameter starting from root node. Default to $self-location>.

name

element name. Default to $self-element_name>

index

If the changed parameter is part of a hash or an array, index contains the key or the index to get the changed parameter.

note

information about the change. Mandatory when neither old or new value are defined.

really

When set to 1, force recording of change even if in initial load phase.

needs_save

internal parameter.

show_message

Parameters: ( string )

Forwarded to "show_message" in Config::Model::Instance.

root_path

Forwarded to "root_path" in Config::Model::Instance.

model_searcher

Returns an object dedicated to search an element in the configuration model.

This method returns a Config::Model::SearchElement object. See Config::Model::Searcher for details on how to handle a search.

dump_as_data

Dumps the configuration data of the node and its siblings into a perl data structure.

Returns a hash ref containing the data. See Config::Model::DumpAsData for details.

warp_error

Returns a string describing any issue with Config::Model::Warper object. Returns '' if invoked on a tree object without warp specification.

AUTHOR

Dominique Dumont, (ddumont at cpan dot org)

SEE ALSO

Config::Model, Config::Model::Instance, Config::Model::Node, Config::Model::Loader, Config::Model::Dumper

AUTHOR

Dominique Dumont

COPYRIGHT AND LICENSE

This software is Copyright (c) 2005-2021 by Dominique Dumont.

This is free software, licensed under:

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