Javafx：多对多关系的表视图

Question

我正在尝试创建一个显示每个活动以及参与成员的表格视图。活动具有成员列表，而成员具有活动列表。我被困在显示活动名称和活动成员的列中。我想在每行上显示一个活动成员组合。我也不确定如何填充表格，因为我正在传递活动列表。

这就是我想要的。

+----------+------------+-------------+----------------+-------------+
| Activity |    Type    | Member name | Member surname | Member rank |
+----------+------------+-------------+----------------+-------------+
| act1     | Internship | Peter       | Peterson       |           1 |
| act1     | Internship | Bob         | Bobber         |           3 |
| act2     | Sport      | Tim         | Tom            |           1 |
| act2     | Sport      | Bob         | Bobber         |           3 |
+----------+------------+-------------+----------------+-------------+

    public class ActivityListController extends GridPane {

    @FXML
    private TableView<Activity> tblActivities;
    @FXML
    private TableColumn<Activity, String> colActivityName;
    @FXML
    private TableColumn<Activity, String> colType;
    @FXML
    private TableColumn<Activity, List<String>> colFirstName;
    @FXML
    private TableColumn<Activity, String> colLastName;
    @FXML
    private TableColumn<Activity, String> colRank;
    private final DomeinController dc;

    public ActivityListController(DomainController dc) {
        this.dc = dc;
        FXMLLoader loader = new FXMLLoader(getClass().
                getResource("ActivityList.fxml"));
        loader.setController(this);
        loader.setRoot(this);
        try {
            loader.load();
        } catch (IOException ex) {
            throw new RuntimeException(ex);
        }
        colActivity.setCellValueFactory(cellData -> new SimpleStringProperty(cellData.getValue().getName()));
        colActivy.setCellFactory(TextFieldTableCell.forTableColumn());
        colFirstName.setCellValueFactory(cellData -> new SimpleStringProperty(cellData.getValue().getMembers().???));
        colLastName.setCellValueFactory(cellData -> new SimpleStringProperty(cellData.getValue().getMembers().???));
        colRank.setCellValueFactory(cellData -> new SimpleStringProperty(cellData.getValue().getMembers().???));

        tblActivities.setItems(dc.getAllActivities());
    }