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package Moose::Meta::Attribute::Native::Trait::Counter; |
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our $VERSION = '2.2205'; |
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use Moose::Role; |
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with 'Moose::Meta::Attribute::Native::Trait'; |
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sub _helper_type { 'Num' } |
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sub _root_types { 'Num', 'Int' } |
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no Moose::Role; |
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1; |
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# ABSTRACT: Helper trait for Int attributes which represent counters |
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__END__ |
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=pod |
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=encoding UTF-8 |
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=head1 NAME |
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Moose::Meta::Attribute::Native::Trait::Counter - Helper trait for Int attributes which represent counters |
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=head1 VERSION |
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version 2.2205 |
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=head1 SYNOPSIS |
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package MyHomePage; |
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use Moose; |
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has 'counter' => ( |
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traits => ['Counter'], |
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is => 'ro', |
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isa => 'Num', |
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default => 0, |
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handles => { |
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inc_counter => 'inc', |
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dec_counter => 'dec', |
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reset_counter => 'reset', |
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}, |
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); |
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my $page = MyHomePage->new(); |
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$page->inc_counter; # same as $page->counter( $page->counter + 1 ); |
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$page->dec_counter; # same as $page->counter( $page->counter - 1 ); |
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my $count_by_twos = 2; |
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$page->inc_counter($count_by_twos); |
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=head1 DESCRIPTION |
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This trait provides native delegation methods for counters. A counter can be |
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any sort of number (integer or not). The delegation methods allow you to |
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increment, decrement, or reset the value. |
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=head1 DEFAULT TYPE |
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If you don't provide an C<isa> value for your attribute, it will default to |
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C<Num>. |
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=head1 PROVIDED METHODS |
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=over 4 |
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=item * B<set($value)> |
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Sets the counter to the specified value and returns the new value. |
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This method requires a single argument. |
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=item * B<inc> |
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=item * B<inc($arg)> |
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Increases the attribute value by the amount of the argument, or by 1 if no |
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argument is given. This method returns the new value. |
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This method accepts a single argument. |
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=item * B<dec> |
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=item * B<dec($arg)> |
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Decreases the attribute value by the amount of the argument, or by 1 if no |
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argument is given. This method returns the new value. |
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This method accepts a single argument. |
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=item * B<reset> |
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Resets the value stored in this slot to its default value, and returns the new |
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value. |
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=back |
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=head1 BUGS |
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See L<Moose/BUGS> for details on reporting bugs. |
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=head1 AUTHORS |
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=over 4 |
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=item * |
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Stevan Little <stevan@cpan.org> |
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=item * |
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Dave Rolsky <autarch@urth.org> |
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=item * |
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Jesse Luehrs <doy@cpan.org> |
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=item * |
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Shawn M Moore <sartak@cpan.org> |
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=item * |
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יובל קוג'מן (Yuval Kogman) <nothingmuch@woobling.org> |
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=item * |
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Karen Etheridge <ether@cpan.org> |
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=item * |
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Florian Ragwitz <rafl@debian.org> |
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=item * |
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Hans Dieter Pearcey <hdp@cpan.org> |
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=item * |
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Chris Prather <chris@prather.org> |
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=item * |
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Matt S Trout <mstrout@cpan.org> |
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=back |
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=head1 COPYRIGHT AND LICENSE |
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This software is copyright (c) 2006 by Infinity Interactive, Inc. |
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This is free software; you can redistribute it and/or modify it under |
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the same terms as the Perl 5 programming language system itself. |
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=cut |