Accessing methods of tree node?

asked 2015-05-06 15:32:33 +0800

Tegomena gravatar image Tegomena
33 4


I have a Tree for which I have written a model ("MyModel") and a node class ("MyNode"). In MyNode, I'm storing some additional information with getter/setter, for example a String in "MyNode.getMyString()".

When someone clicks now on the tree, I can access its items via TreeItem:

   @Listen("onSelect =#datasetsTree")
    public void onSelectDatasetsTree(Event ev){

But how can I access now the "MyNode" object behind it, a casting doesn't works?

Thanks for any hints and in general I would like to say Thank You for the excellent help in this forum!

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the datasetsTree is Tree class?

chillworld ( 2015-05-07 09:23:26 +0800 )edit

3 Answers

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answered 2015-05-07 02:05:40 +0800

echarish gravatar image echarish flag of Japan
1809 7


event.getTarget() will give you the component on which the event is being triggered. once you have the target you can cast it to your component and call your methods.


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answered 2015-05-07 09:20:32 +0800

chillworld gravatar image chillworld flag of Belgium
5322 4 9

updated 2015-05-07 09:27:37 +0800

If it's a Tree you have you can get the selected node by :

// maybe some more casting need to be done.
Set<MyNode> nodes = ((MyModel)tree.getModel()).getSelection();

This is of course true if MyModel extends AbstractTreeModel.

Greetz chill.

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answered 2015-05-07 09:26:51 +0800

Tegomena gravatar image Tegomena
33 4

Thank you very much for your help, I figured it out!!

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Asked: 2015-05-06 15:32:33 +0800

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Last updated: May 07 '15

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