2018-06-22 10:09:25 +02:00

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`Decorator`__
=============
Purpose
-------
To dynamically add new functionality to class instances.
Examples
--------
- Zend Framework: decorators for ``Zend_Form_Element`` instances
- Web Service Layer: Decorators JSON and XML for a REST service (in
this case, only one of these should be allowed of course)
UML Diagram
-----------
.. image:: uml/uml.png
:alt: Alt Decorator UML Diagram
:align: center
Code
----
You can also find this code on `GitHub`_
Booking.php
.. literalinclude:: Booking.php
:language: php
:linenos:
BookingDecorator.php
.. literalinclude:: BookingDecorator.php
:language: php
:linenos:
DoubleRoomBooking.php
.. literalinclude:: DoubleRoomBooking.php
:language: php
:linenos:
ExtraBed.php
.. literalinclude:: ExtraBed.php
:language: php
:linenos:
WiFi.php
.. literalinclude:: WiFi.php
:language: php
:linenos:
Test
----
Tests/DecoratorTest.php
.. literalinclude:: Tests/DecoratorTest.php
:language: php
:linenos:
.. _`GitHub`: https://github.com/domnikl/DesignPatternsPHP/tree/master/Structural/Decorator
.. __: http://en.wikipedia.org/wiki/Decorator_pattern