Class::Singleton - Implementation of a "Singleton" class

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This is the "Class::Singleton" module. A Singleton describes an object class that can have only one instance in any system. An example of a Singleton might be a print spooler or system registry. This module implements a Singleton class from which oth...

OOP::Perlish::Class::Singleton

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Create a singleton class. Only one instance of this class will ever exist, no matter how many times a call is made to OOP::Perlish::Class::Singleton->new(); The first call will create the instance, and all subsequent calls will receive references to ...

Class::MakeMethods::Emulator::Singleton - Emulate Class::Singleton

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A Singleton describes an object class that can have only one instance in any system. An example of a Singleton might be a print spooler or system registry. This module implements a Singleton class from which other classes can be derived. By itself, t...

MooseX::Singleton::Role::Meta::Class - Metaclass role for MooseX::Singleton

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This metaclass role makes sure that there is only ever one instance of an object for a singleton class. The first call to "construct_instance" is run normally (and then cached). Subsequent calls will return the cached version....

lib/OOP/Perlish/Class/Singleton/UnitTests/Singleton.pm

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Class::WeakSingleton - A Singleton that expires when all the references to it expire

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This is the Class::WeakSingleton module. A Singleton describes an object class that can have only one instance in any system. An example of a Singleton might be a print spooler, system registry or database connection. A "weak" Singleton is not immort...

Class::SingletonProxy - proxy class methods to a singleton

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classes derived from Class::SingletonProxy redirect class methods to (per class) singleton objects. METHODS $class->SINGLETON() this method can be redefined on subclasses and is automatically called to create the singleton when it has not been previo...

Class::StrongSingleton - A stronger and more secure Singleton base class.

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This module is an alternative to Class::Singleton and Class::WeakSingleton, and provides a more secure Singleton class in that it takes steps to prevent the possibility of accidental creation of multiple instances and/or the overwriting of existsing ...

Class::SingletonMethod - Extend individual objects with additional methods

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This module provides a Perl implementation of singleton methods. The Ruby FAQ defines singleton methods like so: (Q) What is a singleton method? (A) A singleton method is defined for the particular object but in the class. A singleton method allows a...

DBIx::Class::SingletonRows - make database rows returned by DBIx::Class into singletons

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When you do this with DBIx::Class: my $row = $schema->... my $row2 = update_and_return(); sub update_and_return { my $row = $schema->... $row->somefield("HLAGH"); $row->update(); return $row; } then even if both $row and $row2 have the same row_id, t...

lib/Class/Component/Component/SingletonMethod.pm

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lib/Class/STL/ClassMembers/SingletonConstructor.pm

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lib/Class/Component/Component/Autocall/SingletonMethod.pm

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Class::NonOO - Use methods as functions with an implicit singleton

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This module allows you to turn a class into a module that exports methods as functions that use an implicit singleton. This allows you to provide a "hybrid" object-oriented/functional interface....

Class::Monadic - Provides monadic methods (a.k.a. singleton methods)

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"Class::Monadic" provides per-object classes, monadic classes. It is also known as singleton classes in other languages, e.g. "Ruby". Monadic classes is used in order to define monadic methods, i.e. per-object methods (a.k.a. singleton methods), whic...

Class::DI - Perl dependency injection container

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this class does DI. The instance is generated based on an external setting, and the dependence between components is excluded from the source code....

Class::Null - Implements the Null Class design pattern

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This class implements the Null Class design pattern. Suppose that methods in your object want to write log messages to a log object. The log object is possibly stored in a slot in your object and can be accessed using an accessor method: package MyOb...

Class::Default - Static calls apply to a default instantiation

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Class::Default provides a mechanism to allow your class to take static method calls and apply it to a default instantiation of an object. It provides a flexibility to an API that allows it to be used more confortably in different situations. A good e...

MongoDBx::Class - Flexible ORM for MongoDB databases

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MongoDBx::Class is a flexible object relational mapper (ORM) for MongoDB databases. Given a schema-like collection of document classes, MongoDBx::Class expands MongoDB objects (hash-refs in Perl) from the database into objects of those document class...

Class::ConfigMgr

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Class::ConfigMgr is a base class for implementing a singleton object configuration manager. This module is based off of the configuration manager found in Movable Type and a limited subset of AppConfig configuration files....