[FLOW3-general] DependencyInjection: Best practice

[Julian Kleinhans]

Hiho and a happy new year :-)

i have a question about dependency injection!
There a three ways to inject a dependend object


1) Constructor injection
public function __construct(F3\Test $test) {
   $this->test = $test;
}

2) Setter injection
public function setTest(F3\Test $test) {
   $this->test = $test;
}

or

public function injectTest(F3\Test $test) {
   $this->test = $test;
}


3) Property injection
/**
  * @var F3\Test
  * @inject
  */
  protected $this->test;



What is different between 2 and 3? What is the best way ?
The property injection needs no method and is really short.. so i would 
say, use property injection instead setter injection.. or is there any 
special reason ?

cheers
julian


-- 
Julian Kleinhans
Certified TYPO3 Integrator
email: typo3 at kj187.de
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