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Service.php
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Service.php
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<?php
namespace DesignPatterns\Behavioral\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...
}
}