javafx中如何手动的触发事件，如树节点的更新事件

应用场景:
修改树节点的显示字段，但是树节点并没有refresh或者重新渲染的方法来实现树节点的刷新从而来感知这种修改。
实现方式:
可以实现采用手动触发事件的方式。

TreeItem<AbstractTreeNode> currentTreeItem = ****;//当前发生修改的树节点
currentTreeItem.getValue().setNodeText("abc");
//自动触发修改的事件,使树节点的显示信息能同步修改
Event.fireEvent(currentTreeItem, new TreeItem.TreeModificationEvent<AbstractTreeNode>(TreeItem.valueChangedEvent(), currentTreeItem, currentTreeItem.getValue()));

构建树节点的显示时自定义渲染方式:

TreeView<AbstractTreeNode> leftNodeTree = new TreeView<AbstractTreeNode>();
....
 leftNodeTree.setCellFactory(new Callback<TreeView<AbstractTreeNode>, TreeCell<AbstractTreeNode>>() {
            @Override
            public TreeCell<AbstractTreeNode> call(TreeView<AbstractTreeNode> param) {
                return new TreeCellImpl();
            }
        });

public class TreeCellImpl extends TreeCell<AbstractTreeNode> {
@Override
    public void updateItem(AbstractTreeNode item, boolean empty) {
        super.updateItem(item, empty);
        if (empty) {
            setText(null);
            setGraphic(null);
        } else {
            setText(item.getNodeText());
            setGraphic(item.getGraphic());
            if (item.getNodeType().equals(NodeType.TREE_CONFIG_NODE)) {
                setContextMenu(new TreeConfigContextMenu(this.getTreeView(), this.getTreeItem(), item));
            } else if (item.getNodeType().equals(NodeType.TREE_DETAIL_CONFIG_NODE)) {
                setContextMenu(new TreeDetailConfigContextMenu(this.getTreeView(), this.getTreeItem(), item));
            } else if (item.getNodeType().equals(NodeType.SHAREDATA_FIELDS_NODE)) {
//                setContextMenu(new TreeConfigContextMenu(item));
            }
        }
    }
}

class AbstractTreeNode {
    private String nodeId;
    private String nodeText;
    public String getNodeId() {
        return nodeId;
    }

    public void setNodeId(String nodeId) {
        this.nodeId = nodeId;
    }

     public String getNodeText() {
        return nodeText;
    }

    public void setNodeText(String nodeText) {
        this.nodeText = nodeText;
    }