Adapter / Wrapper__

Purpose

To translate one interface for a class into a compatible interface. An adapter allows classes to work together that normally could not because of incompatible interfaces by providing its interface to clients while using the original interface.

Examples

• DB Client libraries adapter
• using multiple different webservices and adapters normalize data so that the outcome is the same for all

UML Diagram

.. image:: uml/uml.png :alt: Alt Adapter UML Diagram :align: center

Code

You can also find this code on GitHub_

Book.php

.. literalinclude:: Book.php :language: php :linenos:

PaperBook.php

.. literalinclude:: PaperBook.php :language: php :linenos:

EBook.php

.. literalinclude:: EBook.php :language: php :linenos:

EBookAdapter.php

.. literalinclude:: EBookAdapter.php :language: php :linenos:

Kindle.php

.. literalinclude:: Kindle.php :language: php :linenos:

Test

Tests/AdapterTest.php

.. literalinclude:: Tests/AdapterTest.php :language: php :linenos:

.. _GitHub: https://github.com/DesignPatternsPHP/DesignPatternsPHP/tree/main/Structural/Adapter .. __: http://en.wikipedia.org/wiki/Adapter_pattern