protected function getSessionNamespace($name = null) {
		if ($name === null) {
			$name = str_replace('\\', '_', get_class($this));
		}
		
		if (isset($this->_namespacesInstances[$name])) {
			return $this->_namespacesInstances[$name];
		}
		
		$namespace = $this->getNamespaceFactory()->createNamespace($name);
		
		$this->_namespacesInstances[$name] = $namespace;
		return $namespace;
	}