But
caller doesn't do what you want. Try:
sub respond_to_message_from {
my $self = shift;
my($message, $sender);
my $attitude = $self->appropriate_attitude_to($sender);
$attitude->respond_to_message_from($self,
$message,
$sender);
}
This avoids monkeying with
@ISA, which can only be a good thing.
$attitude is an example of the
Strategy Pattern. Note that I've not got an
@args parameter to this function, instead I'd expect them to be wrapped up in teh
$message object (which can be thought of as an example of the
Argument Object pattern.
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: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.