public function createNamespace($name) {
		if (isset($this->_namespaces[$name])) {
			return $this->_namespaces[$name];
		}
		
		$namespace = new Bag($name);
		
		if ($this->hasLocator()) {
			$namespace->setDi($this->getLocator());
		}
		
		$this->_namespaces[$name] = $namespace;
		return $namespace;
	}