public function lock() {
		$this->_locked = true;
		
		foreach ($this->_data as $part) {
			if ($part instanceof Config) {
				$part->lock();
			}
		}
		
		return $this;
	}
public function lock() {
		$this->_locked = true;
		
		foreach ($this->_data as $part) {
			if ($part instanceof Config) {
				$part->lock();
			}
		}
		
		return $this;
	}
public function lock ( ) { $ this -> _locked = true ; foreach ( $ this -> _data as $ part ) { if ( $ part instanceof Config ) { $ part -> lock ( ) ; } } return $ this ; }
Lock the config to the read only mode

@return Config
Lock the config to the read only mode