libclass-adapter-perl - 1.09-2 main

The Class::Adapter class is intended as an abstract base class for creating
any sort of class or object that follows the Adapter pattern.
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The term Adapter refers to a "Design Pattern" of the same name, from the
famous "Gang of Four" book "Design Patterns". Although their original
implementation was designed for Java and similar single-inheritance
strictly-typed language, the situation for which it applies is still valid.
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An Adapter in this Perl sense of the term is when a class is created to
achieve by composition (objects containing other object) something that can't
be achieved by inheritance (sub-classing).
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This is similar to the Decorator pattern, but is intended to be applied on a
class-by-class basis, as opposed to being able to be applied one object at a
time, as is the case with the Decorator pattern.