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Bread::Board::Traversable(3pm) User Contributed Perl Documentation Bread::Board::Traversable(3pm)


Bread::Board::Traversable - role for traversing a container service tree


version 0.37


  my $service = $container->fetch('/some/service/path');
  my $root = $service->get_root_container;


This role provides the basic functionality to traverse a container / service tree. Instances of classes consuming this role will get a parent-child relationship between them.



Weak ref to another Bread::Board::Traversable object, read/write accessor (although you should probably not change this value directly in normal code).



Predicate for the "parent" attribute, true if a parent has been set.


Clearer for the "parent" attribute, you should probably not call this method in normal code.


Returns the farthest ancestor of the invocant, i.e. the top-most container this object is a part of.


  my $service = $this->fetch('/absolute/path');
  my $service = $this->fetch('relative/path');
  my $service = $this->fetch('../relative/path');

Given a (relative or absolute) path to a service or container, this method walks the tree and returns the Bread::Board::Service or Bread::Board::Container instance for that path. Dies if no object can be found for the given path.

Aliases are resolved in this call, by calling "aliased_from" until we get an actual service.


Stevan Little <>


Please report any bugs or feature requests on the bugtracker website

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) 2019, 2017, 2016, 2015, 2014, 2013, 2011, 2009 by Infinity Interactive.

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

2020-04-01 perl v5.30.0