package Handler::Colors;
use YAML qw(Load);  # or some other module to handle config-like files

#  set up a bunch of event handlers that
#  send email depending on colour

sub init {
  my $colors = Load('/color/config');
  my @handlers;
  while (my ($color,$email) = each %$colors) {
    @handlers = Handler::Colors->new(
       {
         color => $color,
         email => $email
       }
    );
  }
  return @handlers; #update: added this line!
}

# create handler object

sub new {
  my $class = shift;
  return bless { @_ },$class;
}

# check for my color and send email if found.

sub handle {
  my ($self,$event) = @_;
  if ($self->{color} eq $event->color()) {
     send_mail($self->{email});
  }
}
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update2: To clarify: this code plugs into the code in my post above, so you can have more of these classes for each different type of action you need to perform. All that's changed there is that the

  push @event_handlers,"Handler::$_";
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  push @event_handlers,"Handler::$_"->init();
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Ok. That's the design twist I was looking for - different config files for each kind of event handler. THANK YOU! :-)

Being right, does not endow the right to be rude; politeness costs nothing.
Being unknowing, is not the same as being stupid.
Expressing a contrary opinion, whether to the individual or the group, is more often a sign of deeper thought than of cantankerous belligerence.
Do not mistake your goals as the only goals; your opinion as the only opinion; your confidence as correctness. Saying you know better is not the same as explaining you know better.

use base 'Handler::Email';

sub email { 'green2341@place.com' }
[download]

sub handle {
    my $email = $self->email;
    # send email
    # ...
}
[download]