NAME
    MooseX::ExpiredAttribute - Expired and auto rebuilded attributes in
    Moose objects

SYNOPSIS
        package MyClass;

        use Moose;
        use MooseX::ExpiredAttribute;

        has 'config' => (
            traits  => [ qw( Expired ) ],
            is      => 'rw',
            isa     => 'HashRef',
            expires => 5.5,
            lazy    => 1,
            builder => '_build_config',
        );

        sub _build_config {
            ... # open config file, read and hash forming
        }

        package main;

        my $prog = MyClass->new;

        $prog->config;      # The first calling - here read file and make hash of configs
        sleep 2;            # only 2 seconds elapsed...
        $prog->config;      # ... there is no calling of builder again - only attribute value returning
        sleep 4;            # elapsed ~ 6 seconds from first calling of builder - more than 5.5 seconds elapsed (the 'expires' option)
        $prog->config;      # ... there is new calling of builder - rereading config file again
        sleep 3;            # only 3 seconds elapsed from rebuilding...
        $prog->config;      # ... only old value is returned
        ...

    and even by this way:

        package MyRole;

        use Moose::Role;
        use MooseX::ExpiredAttribute;

        has 'config' => (
            traits   => [ qw( Expired ) ],
            is       => 'rw',
            isa      => 'HashRef',
            expires  => 5.5,
            lazy     => 1,
            builder  => '_build_config',
        );

        sub _build_config {
            ... # open config file, read and hash forming
        }

        package MyClass;

        with 'MyRole';

        has 'foo' => ( is => 'rw' );

        package main;

        my $prog = MyClass->new;

        $prog->config;      # First calling - here read file and hash of configs
        ...

DESCRIPTION
    This module allows to create expired attributes with auto-rebuilding
    feature after elapsed time. The goal of module is attrubutes which can
    be able to have the time-varying value. For example some configs can be
    changed by user during program runtime and wished to be reread by
    program every one minute for example. All that is required from you to
    add the trait to an attribute and to add the 'expires' option (may be
    fractal seconds). An attribute should have a builder too!

SEE ALSO
    MooseX::ExpiredAttribute::Role::Object
    MooseX::ExpiredAttribute::Role::Meta::Attribute

AUTHOR
    This module has been written by Perlover <perlover@perlover.com>

LICENSE
    This module is free software and is published under the same terms as
    Perl itself.