public function getTopologyId() {
		if ($this->backendId === null) {
			$this->backendId = self::createId();
		}
		
		return $this->backendId;
	}
public function getTopologyId() {
		if ($this->backendId === null) {
			$this->backendId = self::createId();
		}
		
		return $this->backendId;
	}
public function getTopologyId ( ) { if ( $ this -> backendId === null ) { $ this -> backendId = self :: createId ( ) ; } return $ this -> backendId ; }
Get the unique decorator ID

@return string
Get the unique decorator ID