Ran Eilam > Aspect-0.09_02 > Aspect::Library::Singleton

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NAME ^

Aspect::Library::Singleton - A singleton aspect

SYNOPSIS ^

  use Aspect::Singleton;

  aspect Singleton => 'Foo::new';

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

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

SUPER ^

Aspect::Modular

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):

Note that this is just a special case of memoizing.

SEE ALSO ^

See the Aspect pods for a guide to the Aspect module.

You can find an example comparing the OO and AOP solutions in the examples/ directory of the distribution.

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