Flyweight__

Purpose

To minimise memory usage, a Flyweight shares as much as possible memory with similar objects. It is needed when a large amount of objects is used that don't differ much in state. A common practice is to hold state in external data structures and pass them to the flyweight object when needed.

UML Diagram

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

Code

You can also find this code on GitHub_

Text.php

.. literalinclude:: Text.php :language: php :linenos:

Word.php

.. literalinclude:: Word.php :language: php :linenos:

Character.php

.. literalinclude:: Character.php :language: php :linenos:

TextFactory.php

.. literalinclude:: TextFactory.php :language: php :linenos:

Test

Tests/FlyweightTest.php

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

.. _GitHub: https://github.com/DesignPatternsPHP/DesignPatternsPHP/tree/main/Structural/Flyweight .. __: https://en.wikipedia.org/wiki/Flyweight_pattern