As others said, I'd rather preferre a simple object to a tie.

In your case it (yet) seems sufficient to bless a scalar ref instead of a hash ref. So you can fetch and store your link with $$ dereferencing.

Of course this doesn't scale well when your object needs more data...

Then lvalue mutators maybe a handy alternative... but to validate the stored links you need again a tie on the data, see Re: A tale about accessors, lvalues and ties

#!/usr/bin/perl

use strict;
use warnings;
$\="\n";

{
    package LinkClass;

    sub new {
    my $scalar="link";
    my $self=\$scalar;
    bless $self;
    return $self;
    }

    sub print {print ${$_[0]}}

    sub url :lvalue { ${$_[0]} }
}

my $obj=LinkClass->new();

$obj->print();

$$obj="link2";
$obj->print();


$obj->url="link3";
$obj->print();

__END__
link
link2
link3
[download]

a completely other approach maybe using a wrapper write(), which calls tied($var)->print_method; like Arunbear suggested.

write($var);
[download]

write() could be automatically imported with your Linkpackage...

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