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

Code

You can also find this code on GitHub

Booking.php

Booking.php

BookingDecorator.php

BookingDecorator.php

DoubleRoomBooking.php

DoubleRoomBooking.php

ExtraBed.php

ExtraBed.php

WiFi.php

WiFi.php

Test

Tests/DecoratorTest.php

Tests/DecoratorTest.php