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33 lines
658 B
PHP
33 lines
658 B
PHP
<?php
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namespace DesignPatterns\Mediator;
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/**
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* Colleague is an abstract colleague who works together but he only knows
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* the Mediator, not other colleague.
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*/
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abstract class Colleague
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{
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/**
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* this ensures no change in subclasses
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*
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* @var MediatorInterface
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*/
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private $mediator;
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// for subclasses
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protected function getMediator()
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{
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return $this->mediator;
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}
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/**
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* @param MediatorInterface $medium
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*/
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public function __construct(MediatorInterface $medium)
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{
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// in this way, we are sure the concrete colleague knows the mediator
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$this->mediator = $medium;
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}
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}
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