javafx 8：迭代树视图

Question

我使用fxml创建了一个treeView，然后我填充了控制器中的数据（在Initialize（）中）。我添加了一个带有列表器的文本字段，当用户在其上键入内容时，我应该在树视图中搜索对应的项目并仅显示它。我不知道如何搜索或迭代树视图..这是我的代码：

@FXML private TreeView myTreeView;

@FXML public TextField searchTextField; 

public Preferences myPref = Preferences.userNodeForPackage(this.getClass());

   @Override

   public void initialize(URL url, ResourceBundle rb) {

        //root
        TreeRoot = new TreeItem("TreeItems");

        //1st node
        material = new TreeItem("Material");
        //add children to 1st node
        TreeItem<String> cardsType = new TreeItem("CardsType");
        TreeItem<String> memory = new TreeItem("HostMemory" );
        nodes.getChildren().addAll(cardsType,memory);

        //2nd node
        applicationsType = new TreeItem("Application Type");
        //add children to 2nd node
        TreeItem<String> streamType = new TreeItem("streamTypes");
        TreeItem<String> direction = new TreeItem("direction");
        appsType.getChildren().addAll(streamType,direction);

        //add other nodes here...

        //set root and nodes
        itemTreeView.setRoot(TreeRoot);
        TreeRoot.getChildren().addAll(material,,applicationsType);
        myTreeView.setShowRoot(false);

        //save preferences 
        TreeRoot.setExpanded(myPref.getBoolean("TreeItems", true));
        material.setExpanded(myPref.getBoolean("material", true));
        applicationsType.setExpanded(myPref.getBoolean("Application Type", true));

         SearchTextField.setPromptText("Search");
         SearchTextField.textProperty().addListener(new ChangeListener<String>()  {
        @Override
            public void changed(ObservableValue<? extends String> observable,
                            String oldValue, String newValue) {
                //we could use directly the newValue
                String value = m_SearchTextField.getText();
                // loop and iterate on the treeView , find items in nodes and compare with the string typed 
                //on the textfield
            }
        });


        }