package MooseX::CachedAccessor;
use 5.008;

use Moose::Exporter;
use Data::Dumper;
use MooseX::Role::Parameterized;


Moose::Exporter->setup_import_methods(
    with_caller => [ 'cache_accessor' ],
);

method cache_accessor => sub
{

    my ($caller,$name,%args) = @_;
    my $code = $caller->can('around');

    $code->($name,sub {
      my $orig = shift;
      my $self = shift;

      return $self->{_cache_data}->{$name}->{value}
          if $self->{_cache_data}->{$name} && $self->{_cache_data}->{$
+name}->{expires} > time;
      print "fresh\n";  
      $self->{_cache_data}->{$name}->{expires} = time + $args{expires}
+;
      $self->{_cache_data}->{$name}->{value}   = $self->$orig;
    });
};

1;

----------------------------------------

package Foo;

use Moose;
use MooseX::CachedAccessor;

has 'bar' => ( is => 'ro', isa => 'Str', default => '' );
cache_accessor 'bar' => (expires => 3);

1;

----------------------------------------

use Foo;

my $foo = Foo->new(bar=>'#');

while (1)
{
  print $foo->bar, "\n";
  sleep(1);
}
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