DesignPatternsPHP/NullObject/Service.php at master · NandoKstroNet/DesignPatternsPHP · GitHub

34 lines (30 loc) · 655 Bytes

<?php

namespace DesignPatterns\NullObject;

/**

* Service is dummy service that uses a logger

class Service

{

/**

* @var LoggerInterface

protected $logger;

/**

* we inject the logger in ctor and it is mandatory

* @param LoggerInterface $log

public function __construct(LoggerInterface $log)

{

$this->logger = $log;

}

/**

* do something ...

public function doSomething()

{

// no more check "if (!is_null($this->logger))..." with the NullObject pattern

$this->logger->log('We are in ' . __METHOD__);

// something to do...

}

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