package Algorithm::Evolutionary::Op::Population_Output;

use lib qw( ../../../../../../Algorithm-Evolutionary/lib ../Algorithm-Evolutionary/lib ); #For development and perl syntax mode

use warnings;
use strict;
use Carp;

our $VERSION =   sprintf "%d.%03d", q$Revision: 3.1 $ =~ /(\d+)\.(\d+)/g; 

use base 'Algorithm::Evolutionary::Op::Base';

sub new {
  my $class = shift;
  my $hash = { printer => shift || 
		   sub { my $member = shift; 
			 print $member->as_string, "\n"; } 
  };
  my $self = Algorithm::Evolutionary::Op::Base::new( __PACKAGE__, 1, $hash );
  return $self;
}

sub apply {
    my $self = shift;
    my $population_hashref=shift;
    for my $p (@$population_hashref) {
	$self->{'_printer'}->($p);
    }
}

"No man is an island" ; # Magic true value required at end of module
__END__

=head1 NAME

Algorithm::Evolutionary::Op::Population_Output - Flexible population printing class


=head1 SYNOPSIS

  my $pp = new Algorithm::Evolutionary::Op::Population_Output; 

  my @pop;
  for ( 1..10 ) {
    my $indi= new Algorithm::Evolutionary::Individual::String [0,1], 8;
    push @pop, $indi;
  }

  $pp->apply( \@pop );

  $pp = new Algorithm::Evolutionary::Op::Population_Output sub { my $member = shift; 
							      print $member->as_yaml, "\n"; } ; 

  $pp->apply( \@pop );

=head1 DESCRIPTION

Configurable population printing class

=head1 INTERFACE 

=head2 new( [$printer] )

C<$printer> is a closure or reference to function that receives as
input a single population member. By default, calls C<as_string> on
each member of the array hash followed by a carriage return.

=head2 apply( $population_hashref )

Applies the single-member printing function to every population member

=head1 DEPENDENCIES

Main dependence is L<Algorithm::Evolutionary>; however, it's not
included by default, since you must pick and choose the modules you
are going to actually use.

=head1 INCOMPATIBILITIES

None reported.

=head1 BUGS AND LIMITATIONS

No bugs have been reported.

Please report any bugs or feature requests to
C<bug-poe-component-algorithm-evolutionary@rt.cpan.org>, or through the web interface at
L<http://rt.cpan.org>.


=head1 AUTHOR

JJ Merelo  C<< <jj@merelo.net> >>

=head1 LICENCE AND COPYRIGHT

Copyright (c) 2009, JJ Merelo C<< <jj@merelo.net> >>. All rights reserved.

This module is free software; you can redistribute it and/or
modify it under the same terms as Perl itself. See L<perlartistic>.

  CVS Info: $Date: 2009/09/13 12:49:04 $ 
  $Header: /cvsroot/opeal/Algorithm-Evolutionary/lib/Algorithm/Evolutionary/Op/Population_Output.pm,v 3.1 2009/09/13 12:49:04 jmerelo Exp $ 
  $Author: jmerelo $ 

=head1 DISCLAIMER OF WARRANTY

BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE SOFTWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
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PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER
EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE
ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH
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LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL,
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