info > Moose::Meta::Attribute::Native::Trait::Counter

Moose::Meta::AttributeUsertMoose::Meta::Attribute::Native::Trait::Counter(3pm)

NAME
       Moose::Meta::Attribute::Native::Trait::Counter - Helper trait for Int
       attributes which represent counters

VERSION
       version 2.2200

SYNOPSIS
         package MyHomePage;
         use Moose;

         has 'counter' => (
             traits  => ['Counter'],
             is      => 'ro',
             isa     => 'Num',
             default => 0,
             handles => {
                 inc_counter   => 'inc',
                 dec_counter   => 'dec',
                 reset_counter => 'reset',
             },
         );

         my $page = MyHomePage->new();
         $page->inc_counter;    # same as $page->counter( $page->counter + 1 );
         $page->dec_counter;    # same as $page->counter( $page->counter - 1 );

         my $count_by_twos = 2;
         $page->inc_counter($count_by_twos);

DESCRIPTION
       This trait provides native delegation methods for counters. A counter
       can be any sort of number (integer or not). The delegation methods
       allow you to increment, decrement, or reset the value.

DEFAULT TYPE
       If you don't provide an "isa" value for your attribute, it will default
       to "Num".

PROVIDED METHODS
       o   set($value)

           Sets the counter to the specified value and returns the new value.

           This method requires a single argument.

       o   inc

       o   inc($arg)

           Increases the attribute value by the amount of the argument, or by
           1 if no argument is given. This method returns the new value.

           This method accepts a single argument.

       o   dec

       o   dec($arg)

           Decreases the attribute value by the amount of the argument, or by
           1 if no argument is given. This method returns the new value.

           This method accepts a single argument.

       o   reset

           Resets the value stored in this slot to its default value, and
           returns the new value.

BUGS
       See "BUGS" in Moose for details on reporting bugs.

AUTHORS
       o   Stevan Little <stevan AT cpan.org>

       o   Dave Rolsky <autarch AT urth.org>

       o   Jesse Luehrs <doy AT cpan.org>

       o   Shawn M Moore <sartak AT cpan.org>

       o    ' (Yuval Kogman) <nothingmuch AT woobling.org>

       o   Karen Etheridge <ether AT cpan.org>

       o   Florian Ragwitz <rafl AT debian.org>

       o   Hans Dieter Pearcey <hdp AT cpan.org>

       o   Chris Prather <chris AT prather.org>

       o   Matt S Trout <mstrout AT cpan.org>

COPYRIGHT AND LICENSE
       This software is copyright (c) 2006 by Infinity Interactive, Inc.

       This is free software; you can redistribute it and/or modify it under
       the same terms as the Perl 5 programming language system itself.

perl v5.34.0               Moose::Meta::Attribute::Native::Trait::Counter(3pm)