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84 lines
1.5 KiB
ReStructuredText
84 lines
1.5 KiB
ReStructuredText
`Factory Method`__
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==================
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Purpose
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-------
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The good point over the SimpleFactory is you can subclass it to
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implement different ways to create objects
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For simple case, this abstract class could be just an interface
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This pattern is a "real" Design Pattern because it achieves the
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"Dependency Inversion Principle" a.k.a the "D" in S.O.L.I.D principles.
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It means the FactoryMethod class depends on abstractions, not concrete
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classes. This is the real trick compared to SimpleFactory or
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StaticFactory.
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UML Diagram
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-----------
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.. image:: uml/uml.png
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:alt: Alt FactoryMethod UML Diagram
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:align: center
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Code
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----
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You can also find these code on `GitHub`_
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FactoryMethod.php
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.. literalinclude:: FactoryMethod.php
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:language: php
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:linenos:
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ItalianFactory.php
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.. literalinclude:: ItalianFactory.php
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:language: php
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:linenos:
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GermanFactory.php
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.. literalinclude:: GermanFactory.php
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:language: php
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:linenos:
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VehicleInterface.php
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.. literalinclude:: VehicleInterface.php
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:language: php
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:linenos:
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Porsche.php
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.. literalinclude:: Porsche.php
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:language: php
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:linenos:
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Bicycle.php
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.. literalinclude:: Bicycle.php
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:language: php
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:linenos:
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Ferrari.php
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.. literalinclude:: Ferrari.php
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:language: php
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:linenos:
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Test
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----
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Tests/FactoryMethodTest.php
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.. literalinclude:: Tests/FactoryMethodTest.php
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:language: php
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:linenos:
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.. _`GitHub`: https://github.com/domnikl/DesignPatternsPHP/tree/master/Creational/FactoryMethod
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.. __: http://en.wikipedia.org/wiki/Factory_method_pattern
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