Moose::Meta::Attribute::Native::Trait::Counter - Helper trait for Int attributes which represent counters
version 2.2201
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);
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.
If you don't provide an isa value for your attribute, it will default to
Num .
- set($value)
Sets the counter to the specified value and returns the new value.
This method requires a single argument.
- inc
- inc($arg)inc($arg)
Increases the attribute value by the amount of the argument, or by 1 if no
argument is given. This method returns the new value.
This method accepts a single argument.
- dec
- dec($arg)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.
- reset
Resets the value stored in this slot to its default value, and returns the new
value.
See Moose/BUGS for details on reporting bugs.
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.
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