NAME

MooseX::AbstractFactory::Role - AbstractFactory behaviour as a Moose extension

SYNOPSIS

You shouldn't be using this on its own, but via MooseX::AbstractFactory

DESCRIPTION

Role to implement an AbstractFactory as a Moose extension.

SUBROUTINES/METHODS

create()

Returns an instance of the requested implementation.

    use MooseX::AbstractFactory;
    
        my $imp = My::Factory->create(
                'Implementation',
                { connection => 'Type1' },
        );
        

_validate_implementation_class()

Checks that the implementation class exists (via Class::MOP->load_class() ) to be used, and (optionally) that it provides the methods defined in _roles().

This can be overriden by a factory class definition if required: for example

        sub _validate_implementation_class {
                my $self = shift;
                return 1; # all implementation classes are valid :)
        }

_get_implementation_class()

By default, the factory figures out the class of the implementation requested by prepending the factory class itself, so for example

        my $imp = My::Factory->new(
                implementation => 'Implementation')
                

will return an object of class My::Factory::Implementation.

This can be overridden in the factory class by redefining the _get_implementation_class() method, for example:

        sub _get_implementation_class {
                my ($self, $class) = @_;
                return "My::ImplementationClasses::$class";
        }

CONFIGURATION AND ENVIRONMENT

MooseX::AbstractFactory requires no configuration files or environment variables.

DEPENDENCIES

Moose, and Moose::Autobox

INCOMPATIBILITIES

None reported.

BUGS AND LIMITATIONS

No bugs have been reported. Yet.

Please report any bugs or feature requests to mike@altrion.org, or via RT.

AUTHOR

Mike Whitaker <mike@altrion.org>

With thanks to Matt Trout for some of the ideas for the code in _validate_implementation_class.

LICENSE AND COPYRIGHT

Copyright (c) 2007-8, Mike Whitaker <mike@altrion.org>.

This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See perlartistic.

DISCLAIMER OF WARRANTY

BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE SOFTWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH YOU. SHOULD THE SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR, OR CORRECTION.

IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE SOFTWARE AS PERMITTED BY THE ABOVE LICENCE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE SOFTWARE TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

cpanm MooseX::AbstractFactory

perl -MCPAN -e shell
install MooseX::AbstractFactory