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package Cache::Ref::Role::API;
BEGIN {
$Cache::Ref::Role::API::AUTHORITY = 'cpan:NUFFIN';
}
BEGIN {
$Cache::Ref::Role::API::VERSION = '0.04';
}
use Moose::Role;
use Carp qw(croak);
use namespace::autoclean;
requires qw(
get
set
remove
clear
hit
expire
);
sub compute {
my ( $self, $key, $code ) = @_;
croak "must specify key and code"
unless defined($key) && defined($code);
if ( defined( my $cached = $self->get($key) ) ) {
return $cached;
} else {
my $value = $code->();
$self->set( $key => $value );
return $value;
}
}
# ex: set sw=4 et:
__PACKAGE__;
__END__
=pod
=encoding utf-8
=head1 NAME
Cache::Ref::Role::API
=head1 AUTHOR
Yuval Kogman
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2010 by Yuval Kogman.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=cut
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