NAME¶
MooseX::Storage::Traits::OnlyWhenBuilt - A custom trait to bypass serialization
VERSION¶
version 0.48
SYNOPSIS¶
{ package Point;
use Moose;
use MooseX::Storage;
with Storage( traits => [qw|OnlyWhenBuilt|] );
has 'x' => (is => 'rw', lazy_build => 1 );
has 'y' => (is => 'rw', lazy_build => 1 );
has 'z' => (is => 'rw', builder => '_build_z' );
sub _build_x { 3 }
sub _build_y { expensive_computation() }
sub _build_z { 3 }
}
my $p = Point->new( 'x' => 4 );
# the result of ->pack will contain:
# { x => 4, z => 3 }
$p->pack;
DESCRIPTION¶
Sometimes you don't want a particular attribute to be part of the serialization
if it has not been built yet. If you invoke "Storage()" as outlined
in the "Synopsis", only attributes that have been built (i.e., where
the predicate returns 'true') will be serialized. This avoids any potentially
expensive computations.
See the SYNOPSIS for a nice example that can be easily cargo-culted.
METHODS¶
Introspection¶
- meta
BUGS¶
All complex software has bugs lurking in it, and this module is no exception. If
you find a bug please either email me, or add the bug to cpan-RT.
AUTHORS¶
- •
- Chris Prather <chris.prather@iinteractive.com>
- •
- Stevan Little <stevan.little@iinteractive.com>
- •
- XXXX XXX'XX (Yuval Kogman) <nothingmuch@woobling.org>
COPYRIGHT AND LICENSE¶
This software is copyright (c) 2007 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.