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Apache Tomcat 6.0.14 (6.0.x branch)
01-17-2008
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Apache::Singleton(3pm) User Contributed Perl Documentation Apache::Singleton(3pm) NAME
Apache::Singleton - Singleton class for mod_perl VERSION
version 0.15 SYNOPSIS
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. NOTE: You need "PerlOptions +GlobalRequest" in your apache configuration in order to use the Request lifetime method. 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. CREDITS
Original idea by Matt Sergeant <matt@sergeant.org> and Perrin Harkins <perrin@elem.com>. Initial implementation and versions 0.01 to 0.07 by Tatsuhiko Miyagawa <miyagawa@bulknews.net>. SEE ALSO
Apache::Singleton::Request, Apache::Singleton::Process, Class::Singleton SOURCE
The development version is on github at http://github.com/mschout/apache-singleton <http://github.com/mschout/apache-singleton> and may be cloned from git://github.com/mschout/apache-singleton.git <git://github.com/mschout/apache-singleton.git> BUGS
Please report any bugs or feature requests to bug-apache-singleton@rt.cpan.org or through the web interface at: http://rt.cpan.org/Public/Dist/Display.html?Name=Apache-Singleton AUTHOR
Michael Schout <mschout@cpan.org> COPYRIGHT AND LICENSE
This software is copyright (c) 2009 by Michael Schout. 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 v5.14.2 2012-04-02 Apache::Singleton(3pm)