I have come across the need to use an event driven setup called from a class method. The problem is that, when I call the class method and setup the callback, I then loose all access to the class object in the callback method. Is there any way to retain visibility to the calling classes object in the callback method?

Here is a simple example:

package XMLParse; use strict; use XML::Parser; sub new { my $class = shift; my $self = { 'i_need_this' => 'important', }; bless $self, $class; return $self; } sub parse { my ($self, $xmlfile) = @_; my $parser = XML::Parser->new( Handlers => {Start => \&handle_start, End => \&handle_end, Char => \&handle_char} ); $parser->parsefile($xmlfile); } sub handle_start { .... } sub handle_end { .... } sub handle_char { .... } 1;
In this example, I need access to the attribute 'i_need_this' in the XMLParse class object from within the xml parser callback methods. How to I go about getting at it?

In reply to Access parent class object in callback by Elijah

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.