Thank you very much for your comment!

I'll try to explain why exactly I need to have access to the object that has initialized the current object (that's what I mean when I call it "the parent object"). For example, let's imagine we have some class for the jobs-queue runner (let's call it SomeFramework::JobsQueue::Executor) and some class for jobs. Is it bad to do something like this:

package SomeFramework::JobsQueue::Executor;

use Moose;
use MooseX::Params::Validate;

has queue {
    isa      => 'SomeFramework::JobsQueue',
    required => 1,
    reader   => 'get_queue',
    writer   => '_set_queue'
}
# This attribute is being set by the framework when the framework
# creates the SomeFramework::JobsQueue::Runner-based object

sub execute {
    my($self, $job, $options) = validated_hash(
        \@_,
        job     => { isa => 'SomeFramework::JobsQueue::Job' },
        options => { isa => 'HashRef' }
    );
    my $queue = $self->get_queue;
    $queue->mark_as_running($job->get_id);
    $job->execute(options => $options);
    $queue->mark_as_completed($job->get_id);
}
[download]

? So, the queue-runner object is aware about the queue object it "belongs" to, so it can call some methods of the queue object.

Or let's look at much more simple example:

package SomeFramework::SomeSubsystem;

use Moose;

has 'some_framework' => {
    isa      => 'SomeFramework',
    required => 1,
    reader   => 'get_some_framework',
    writer   => '_set_some_framework'
}

sub some_method {
    my $self = shift;
    $self->get_some_framework->get_logger->log_trace("Hello, world!");
}
[download]

So, our object knows how to call the framework's object that has initialized that object, so it can call some methods of the framework's object and even some methods of other objects initialized and stored by the framework's object.

If it's really bad, would you be so kind as to help me to understand why? Thank you!

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