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53 lines
1.1 KiB
ReStructuredText
53 lines
1.1 KiB
ReStructuredText
`Delegation`__
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==============
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Purpose
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-------
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Demonstrate the Delegator pattern, where an object, instead of performing one
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of its stated tasks, delegates that task to an associated helper object. In
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this case TeamLead professes to writeCode and Usage uses this, while TeamLead
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delegates writeCode to JuniorDeveloper's writeBadCode function. This inverts
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the responsibility so that Usage is unknowingly executing writeBadCode.
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Examples
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--------
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Please review JuniorDeveloper.php, TeamLead.php, and then Usage.php to see it all tied together.
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UML Diagram
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-----------
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.. image:: uml/uml.png
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:alt: Alt Delegation 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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TeamLead.php
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.. literalinclude:: TeamLead.php
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:language: php
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:linenos:
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JuniorDeveloper.php
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.. literalinclude:: JuniorDeveloper.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/DelegationTest.php
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.. literalinclude:: Tests/DelegationTest.php
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:language: php
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:linenos:
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.. _`GitHub`: https://github.com/domnikl/DesignPatternsPHP/tree/master/More/Delegation
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.. __: http://en.wikipedia.org/wiki/Delegation_pattern
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