绑定CheckBoxTreeCell.selectedProperty

Question

有一个界面：

public interface DecisionWrapper {

    boolean decision ();
    BooleanProperty decisionProperty ();
    void setDecision (boolean decision);
    String getName ();
}

还有一个TreeView <DecisionWrapper>，显示CheckBoxTreeItem <DecisionWrapper>中的相应元素。点击CheckBox，decisionProperty必须更改值。

我知道我可以为每个TreeItem添加监听器，并更改decisionProperty。但我认为这是解决问题的一个不好的方法。我试图在cellFactory构造函数中将CheckBoxTreeCell作为decisionProperty提供selectionProperty，但显然它不起作用：

treeViewReport.setCellFactory (CheckBoxTreeCell.forTreeView (param -> param.getValue().decisionProperty()));
// Here, in fact, the same.
treeViewReport.setCellFactory (new Callback <TreeView <DecisionWrapper>, TreeCell <DecisionWrapper >> () {
    @Override
    public TreeCell <DecisionWrapper> call (TreeView <DecisionWrapper> param) {
      return new CheckBoxTreeCell <DecisionWrapper> (param1 -> param1.getValue().decisionProperty ());
    }
});

定义TreeView：

treeViewReport.setShowRoot(false);
treeViewReport.setCellFactory(CheckBoxTreeCell.forTreeView(param -> param.getValue().decisionProperty()));
CheckBoxTreeItem<DecisionWrapper> root = new CheckBoxTreeItem<>(new DefaultDecisionWrapper("", DecisionWrapper.WrapperType.NEW));

CheckBoxTreeItem<DecisionWrapper> newVls;
CheckBoxTreeItem<DecisionWrapper> oldVls;

if (!importResult.getNewVls().isEmpty()) {
   if (importResult.isOnlyMessages()) {
      newVls = new CheckBoxTreeItem<>(new DefaultDecisionWrapper("New Messages", DecisionWrapper.WrapperType.NEW));
      List<CheckBoxTreeItem<DecisionWrapper>> messages = new ArrayList<>();
      importResult.getNewVls().get(0).getMessageWrappers().forEach(msgDecision -> messages.add(new CheckBoxTreeItem<>(msgDecision)));
      newVls.getChildren().addAll(messages);
   } else {
      newVls = new CheckBoxTreeItem<>(new DefaultDecisionWrapper("New Vls", DecisionWrapper.WrapperType.NEW));
      for (DecisionVlWrapper vlDecision : importResult.getNewVls()) {
         CheckBoxTreeItem<DecisionWrapper> vl = new CheckBoxTreeItem<>(vlDecision);
         List<CheckBoxTreeItem<DecisionWrapper>> messages = vlDecision.getMessageWrappers()
                            .stream()
                            .map((Function<DecisionWrapper, CheckBoxTreeItem<DecisionWrapper>>) CheckBoxTreeItem::new)
                            .collect(Collectors.toList());
         vl.getChildren().addAll(messages);
         newVls.getChildren().add(vl);
     }
  }
  root.getChildren().add(newVls);
}

Class DefaultDecisionWrapper：

public class DefaultDecisionWrapper implements DecisionWrapper {

    BooleanProperty decision;
    WrapperType wrapperType;
    String name;

    public DefaultDecisionWrapper(String name,WrapperType wrapperType){
        decision = new SimpleBooleanProperty(false);
        this.wrapperType = wrapperType;
        this.name = name;
    }

    @Override
    public String getName() {
        return name;
    }

    @Override
    public boolean decision() {
        return decision.get();
    }

    @Override
    public BooleanProperty decisionProperty() {
        return decision;
    }

    @Override
    public void setDecision(boolean decision) {
        this.decision.set(decision);
    }

    @Override
    public WrapperType getWrapperType() {
        return wrapperType;
    }
}

提示如何最好地绑定值？

UPD：我找到了临时解决方案。添加了新课程：

public class CheckBoxTreeItemBind<T extends DecisionWrapper> extends CheckBoxTreeItem<T> {
    public CheckBoxTreeItemBind(T t){
        super(t);
        selectedProperty().bindBidirectional(getValue().decisionProperty());
    }
}

但我认为，它也不好。