Tree with non String objects

Vaadin 6 / 7 / 8 Framework UI
1

Hey!

I got a problem. Whenever I use not a String type at Tree it doesn’t sets Parent correctly.

For example I have objects Like this

object1
… object2
… object3
object 4
… object5
object 6
… object 7
… object 8

tree will build it like this:
object1
object1
object2
object3
object 4
object5
object 6
object 7
object 8

Can anybody help me please?

2

I just worked this out, this is what I did.


public class NavigationTree extends Tree {
	public static final Object SHOW_ALL = "Show all";
	public static final Object SEARCH = "Search";
	public static final String strTest1 = "test1";
	
	Item showAllItem;
	Item searchItem;

	public NavigationTree(FeedApplication app) {
		super("My Tree");
		showAllItem = addItem(SHOW_ALL);
		setChildrenAllowed(SHOW_ALL, false);

		searchItem = addItem(SEARCH);
		setChildrenAllowed(SEARCH, true);
		
		addSearch(strTest1, "MyTest");
	}
	
	public void addSearch(String url, String name) {
		addItem(url);
		setParent(url, SEARCH);
		setItemCaption(url, name);
		setChildrenAllowed(url, false);
	}
}