protected function getClassProviders(\ReflectionClass $class) {
		$annotations = Omocha::getAnnotations($class);
		
		//get class providers
		$providers = $annotations->find('Provider', Filter::TYPE_STRING);
		
		if (!empty($providers)) {
			$classes = [];
			
			foreach ($providers as $provider) {
				$classes[] = $provider->getValue();
			}
			
			return $classes;
		}
		
		//if no providers are specified try getting them from parent class
		if ($annotations->has('ExtendInject')) {
			$extend = $annotations->get('ExtendInject')->getValue();
			
			if ($extend) {
				$parent = $class->getParentClass();
				return $parent instanceof \ReflectionClass ? $this->getClassProviders($parent) : [];
			}
		}
		
		return [];
	}