NAME

       MooseX::Role::Parameterized::Extending - extending MooseX::Role::Parameterized roles

DESCRIPTION

       There are heaps of useful modules in the "MooseX" namespace that you can use to make your
       roles more powerful. However, they do not always work out of the box with
       MooseX::Role::Parameterized, but it's fairly straight-forward to achieve the functionality
       you desire.

       MooseX::Role::Parameterized was designed to be as extensible as the rest of Moose, and as
       such it is possible to apply custom traits to both the parameterizable role or the
       ordinary roles they generate. In this example, we will look at applying the fake trait
       "MooseX::MagicRole" to a parameterizable role.

       First we need to define a new metaclass for our parameterizable role.

           package MyApp::Meta::Role::Parameterizable;
           use Moose;
           extends 'MooseX::Role::Parameterized::Meta::Role::Parameterizable';
           with 'MooseX::MagicRole';

       This is a class (observe that it uses Moose, not Moose::Role) which extends the class
       which governs parameterizable roles.
       MooseX::Role::Parameterized::Meta::Role::Parameterizable is the metaclass that packages
       using MooseX::Role::Parameterized receive by default.

       Note that the class we are extending,
       MooseX::Role::Parameterized::Meta::Role::Parameterizable, is entirely distinct from the
       similarly-named class which governs the ordinary roles that parameterized roles generate.
       An instance of MooseX::Role::Parameterized::Meta::Role::Parameterized represents a role
       with its parameters already bound.

       Now we can take advantage of our new subclass by specifying that we want to use
       "MyApp::Meta::Role::Parameterizable" as our metaclass when importing
       MooseX::Role::Parameterized:

           package MyApp::Role;
           use MooseX::Role::Parameterized -metaclass => 'MyApp::Meta::Role::Parameterizable';

           role {
               ...
           }

       And there you go! "MyApp::Role" now has the "MooseX::MagicRole" trait applied.