I was hooked on playing with tie for awhile a year or so ago, and implemented a few tied filehandle classes to see what I could make of it all. There is some good information in perltie, where it states: "A class implementing a tied filehandle should define the following methods: TIEHANDLE, at least one of PRINT, PRINTF, WRITE, READLINE, GETC, READ, and possibly CLOSE, UNTIE and DESTROY."

Also, a generic tied-handle class from which you can learn as well as derive your own tied handle classes comes with the standard Perl distribution as Tie::Handle (and Tie::StdHandle). It's documented here: Tie::Handle. I found it helpful to read through its framework to gather tips on how to write my own tied filehandle class. But it's also useful to know that Tie::Handle defines all of the necessary methods for a tied handle class. The idea is that you can make your own handle class a subclass of Tie::Handle, and then only go the work of overriding those methods that you wish to customize for your own purposes.


Dave

In reply to Re: Local tied methods refering to others by davido
in thread Local tied methods refering to others by herby1620

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.