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Behavioral/Mediator/index.rst

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+Mediator
+========
+
+Purpose
+-------
+
+This pattern provides an easy to decouple many components working
+together. It is a good alternative over Observer IF you have a "central
+intelligence", like a controller (but not in the sense of the MVC).
+
+All components (called Colleague) are only coupled to the
+MediatorInterface and it is a good thing because in OOP, one good friend
+is better than many. This is the key-feature of this pattern.
+
+UML Diagram
+-----------
+
+.. image:: uml/uml.png
+   :alt: Alt Mediator UML Diagram
+   :align: center
+
+Code
+----
+
+You can also find these code on `GitHub`_
+
+MediatorInterface.php
+
+.. literalinclude:: MediatorInterface.php
+   :language: php
+   :linenos:
+
+Mediator.php
+
+.. literalinclude:: Mediator.php
+   :language: php
+   :linenos:
+
+Colleague.php
+
+.. literalinclude:: Colleague.php
+   :language: php
+   :linenos:
+
+Test
+----
+
+Tests/MediatorTest.php
+
+.. literalinclude:: Tests/MediatorTest.php
+   :language: php
+   :linenos:
+
+.. _`GitHub`: https://github.com/domnikl/DesignPatternsPHP/tree/master/Behavioral/Mediator