Method calls bypass Exporter, so no, this won't work.

There are several ways to do "private" methods.

  1. The standard way is to not bother enforcing private-ness. Just pre-pend an underscore (_) to your method names and let the user consciously make the choice to violate encapsulation.
  2. You can put a 
    sub _my_private_method {
    my $self = shift;

    die "Private method, jerk!"
        unless UNIVERSAL::isa($self, __PACKAGE__);

# ... Continue on here as normal
}

    [download]
    That's known as a gatekeeper. I haven't seen that a lot. That kind of private allows inheritance to work. The other way, requiring that you must be of that class and that class alone would be to do something like ref $self eq __PACKAGE__, more akin to C++'s private.
  3. This applies more to data, but you can change your reference from a hashref to a coderef, effectively making all your object instances closures. This would make all your data private. You could extend it to methods, I suppose. I wouldn't reccomend it because it's extremely non-standard and would be very hard to maintain. There's also a minor speed hit, but it's not that major.
All in all, the best method I've found is #1. Just trust your users. It's the easiest policy to implement.

------
We are the carpenters and bricklayers of the Information Age.

Don't go borrowing trouble. For programmers, this means Worry only about what you need to implement.

In reply to Re: Private Class Methods by dragonchild
in thread Private Class Methods by dhable

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.