p5-Class-Singleton
perl singleton pattern
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Package versionp5-Class-Singleton-1.6
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A Singleton describes an object class that can have only one instance
in any system. This module implements a Singleton class from which
other classes can be derived. By itself, the Class::Singleton
module does very little other than manage the instantiation of a
single object. In deriving a class from Class::Singleton, your
module will inherit the Singleton instantiation method and can
implement whatever specific functionality is required.
For a description and discussion of the Singleton class, see
"Design Patterns", Gamma et al, Addison-Wesley, 1995, ISBN 0-
201-63361-2.