Decorator__

Purpose

To dynamically add new functionality to class instances.

Examples

• 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/DesignPatternsPHP/DesignPatternsPHP/tree/main/Structural/Decorator .. __: http://en.wikipedia.org/wiki/Decorator_pattern