aspect::legacy(3pm) [debian man page]

Aspect::Legacy(3pm)					User Contributed Perl Documentation				       Aspect::Legacy(3pm)

NAME

       Aspect::Legacy - Legacy Compatibility for Aspect.pm

DESCRIPTION

       Aspect::Legacy implements emulated support for the Aspect module as it existed in various forms prior to the 1.00 release in 2010.

       This includes both full legacy support for the original Ran Eilam release series ending in release 0.12, and for code written against the
       0.16 to 0.99 development release series.

       In it's default usage, it is intended as a drop-in upgrade for any old Aspect-oriented code broken by changes in the second-generation
       (version 0.90 or later) implementation created during 2010. To upgrade our old code, simple change "use Aspect;" to "use Aspect::Legacy;"
       and it should continue to function as normal.

AUTHORS

       Adam Kennedy <adamk@cpan.org>

COPYRIGHT

       Copyright 2009 - 2012 Adam Kennedy.

       This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.14.2							    2012-02-01						       Aspect::Legacy(3pm)

Aspect::Library::Singleton(3pm) 			User Contributed Perl Documentation			   Aspect::Library::Singleton(3pm)

NAME

       Aspect::Library::Singleton - A singleton aspect

SYNOPSIS

	 use Aspect;
	 use Aspect::Singleton;

	 aspect Singleton => 'Foo::new';

	 my $f1 = Foo->new;
	 my $f2 = Foo->new;

	 # Both $f1 and $f2 refer to the same object

DESCRIPTION

       A reusable aspect that forces singleton behavior on a constructor. The constructor is defined by a pointcut spec: a string. regexp, or code
       ref.

       It is slightly different from "Class::Singleton" (http://search.cpan.org/~abw/Class-Singleton/Singleton.pm
       <http://search.cpan.org/~abw/Class-Singleton/Singleton.pm>):

       o   No specific name requirement on the constructor for the external interface, or for the implementation ("Class::Singleton" requires
	   clients use "instance()", and that subclasses override "_new_instance()"). With aspects, you can change the cardinality of your objects
	   without changing the clients, or the objects themselves.

       o   No need to inherit from anything- use pointcuts to specify the constructors you want to memoize. Instead of pulling singleton behavior
	   from a base class, you are pushing it in, using the aspect.

       o   No package variable or method is added to the callers namespace

       Note that this is just a special case of memoizing.

AUTHORS

       Adam Kennedy <adamk@cpan.org>

       Marcel Gruenauer <marcel@cpan.org>

       Ran Eilam <eilara@cpan.org>

COPYRIGHT

       Copyright 2001 by Marcel Gruenauer

       Some parts copyright 2009 - 2012 Adam Kennedy.

       This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.14.2							    2012-02-01					   Aspect::Library::Singleton(3pm)