How to set a particular node selected in a JTree from within the model

I have an adapter class that provides communication between my JTree and data model. My adapter class implements TreeModel, TreeExpansionListener, TreeSelectionListener and a listener for changes to my data model.
My data model keeps reference to the currently selected node. It is working quite nicely when I select a tree node with the mouse (the data model is updated accordingly with the node selected), however my problem occurs trying to go the other way (set the selected node in my data model and have it reflected in the tree).
I know that my selection in the tree is changing correctly as when the selection changes it fires off an event to update the attributes window associated with the currently selected node. I just can't get the node to become highlighted.
Any ideas would be most welcome.
Thanks,
Beck.

Does your model really have to keep track of the selected item or can the two views (the JTree and the attributes window) not be coupled together in the user interface instead?
Failing that, you could always consider implementing TreeSelectionModel as well and calling JTree.setSelectionModel since you're keeping track of the tree selection for it already. This is quite a bit of work though.
If that's too much trouble then if you can work out the TreePath for the node that's been programmatically selected through your model then you could use JTree.getSelectionModel().setSelectionPath. Have a look at tree.getSelectionModel().setSelectedPath(new TreePath(selectedObject)).
This approach is a bit warped, though, since it implies that your model knows about the view and therefore couples them together.

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