Moose::Meta::AttributeUsertCoMoose::Meta::Attribute::Native::Trait::Counter(3)NAME
Moose::Meta::Attribute::Native::Trait::Counter - Helper trait for Int
attributes which represent counters
VERSION
version 2.0604
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
· set($value)
Sets the counter to the specified value and returns the new value.
This method requires a single argument.
· inc
· inc($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)
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.
BUGS
See "BUGS" in Moose for details on reporting bugs.
AUTHOR
Moose is maintained by the Moose Cabal, along with the help of many
contributors. See "CABAL" in Moose and "CONTRIBUTORS" in Moose for
details.
COPYRIGHT AND LICENSE
This software is copyright (c) 2012 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 v5.16.2Moose::Meta::Attribute::Native::Trait::Counter(3)
