Populating Tree from Database

[grizli]

I'm trying to populate the Tree component from a Database, however, I ran into something I for see will be an issue. Unless I'm missing something
Once tree is populated, and items in it are selected, in my onSelected method I'll need to capture not just treenode name, but some sort of an ID. After all, nodes can have the same text, but IDs would be different.
So I created a public sub-class within my backing bean, with just 2 parameters (i.e. id, name)
and when I iterate through my ResultSet from DB, I add new tree nodes as such:
TreeNode somenode = new TreeNode(new TreeItem(rs.getString("id"), rs.getString("name")), root);

Is this not supported? If not - how do you uniquely identify nodes?

[cagatay.civici]

TreeNode has a data you can use to hold custom data like id, no?

[grizli]

Don't ask.....

[cagatay.civici]

Ok

[grizli]

Ok, just a quick question
In my

Code: Select all

public void onNodeSelect(NodeSelectEvent event) {
        selectedNode = event.getTreeNode(); }

How do I get an "id" from getData()?

I have an object for each treenode that consists of 5 elements, one of them is "id". How do I pull an "id" from selectedNode?

[cagatay.civici]

Code: Select all

((YourObject) event.getTreeNode().getData()).getId()

You can look at user's guide or javadocs for more information.