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Apache::Singleton.3pm
Langue: en
Version: 2001-12-22 (debian - 07/07/09)
Section: 3 (Bibliothèques de fonctions)
NAME
Apache::Singleton - Singleton class for mod_perlSYNOPSIS
package Printer; # default: # Request for mod_perl env # Process for non-mod_perl env use base qw(Apache::Singleton);
package Printer::PerRequest; use base qw(Apache::Singleton::Request);
package Printer::PerProcess; use base qw(Apache::Singleton::Process);
DESCRIPTION
Apache::Singleton works the same as Class::Singleton, but with various object lifetime (scope). See Class::Singleton first.OBJECT LIFETIME
By inheriting one of the following sublasses of Apache::Singleton, you can change the scope of your object.- Request
-
use base qw(Apache::Singleton::Request);
One instance for one request. Apache::Singleton will remove instance on each request. Implemented using mod_perl "pnotes" API. In mod_perl environment (where $ENV{MOD_PERL} is defined), this is the default scope, so inheriting from Apache::Singleton would do the same effect.
- Process
-
use base qw(Apache::Singleton::Process);
One instance for one httpd process. Implemented using package global. In non-mod_perl environment, this is the default scope, and you may notice this is the same beaviour with Class::Singleton ;)
So you can use this module safely under non-mod_perl environment.
AUTHOR
Original idea by Matt Sergeant <matt@sergeant.org> and Perrin Harkins <perrin@elem.com>.Code by Tatsuhiko Miyagawa <miyagawa@bulknews.net>.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
SEE ALSO
Apache::Singleton::Request, Apache::Singleton::Process, Class::SingletonContenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre