ListSelectionModel and listener

Question

I've a JTable with a ListSelectionModel and ListSelectionListener.

The selection model is set in the JTables constructor: lsm.getSelectionModel()

and the ListSelectionListener is set via a public method:

    public void setListSelectionListener(ListSelectionListener l){
        lsm.addListSelectionListener(l);
    }

called from the Controller class:

    view.setTableSelectionListener(new ListSelectionListener(){
        @Override
        public void valueChanged(ListSelectionEvent e){
            if (!e.getValueIsAdjusting()) {
                int viewRow = e.getFirstIndex();
                System.out.println(viewRow + " is selected");                  
            }
        }
    });

because the listener is created in another class I can't use the JTable's getSelectedRow(); method, but using the ListSelectionEvent object's getFirstIndex(); obviously doesn't get the current selection.

So I'm now using int viewRow = ((ListSelectionModel)e.getSource()).getLeadSelectionIndex());

Does that seem like the correct way to get the current selection? It seems to be working, but I'm not sure if this is a bad way of doing it. Thanks

Answer 1

Only getMinSelectionIndex() and getMaxSelectionIndex() works, which returns the min and max of selected indices respectively. Lead/anchor selected index may >= 0 even when there is no selected row.