I would go for the global variable, but hidden behind a module which will not export it by default. You could call this variable a "framework global", and is also a singleton. 
package MyFramework;
use strict;

use Exporter;
use vars qw(@ISA @EXPORT @EXPORT_OK);

@ISA = qw(Exporter);

@EXPORT_OK = qw( $HANDLE );

1;

[download]
Thus, whenever you need to use it in a module, you'll just have to put: 
use MyFramework qw ( $HANDLE );

[download]
at the top of it and it'll be available for all methods in that module. Where would you initialize this variable? As early as possible, before any method requiring it is executed, preferrably in a BEGIN block within the MyFramework package itself.

This approach is equivalent to your "get_handle" method because it ensures that the same instance will be used by all. It also makes it easy to replace the class that produces the handle, because it would only be invoked once in the whole of your code, at the place where $HANDLE is initialized.

In reply to Re: Avoiding global object handle by gregorovius
in thread Avoiding global object handle by Biker

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.