Trying to update table based on combo box choice

Question

Hey all,
I have taken over code someone has created and it is confusing me what they have done. the code uses an abstracttablemodel to create the table (and i assume, fill the data). I can't for the life of me, figure out how the data is loaded. Can someone tell me what is happening. also, what would be the easiest way to update it to only show that info that matches the criteria? I will post what i think is relevant code, but if i am missing something, i will be happy to throw it in there. Here's the code:
public class ABMD extends JPanel implements ActionListener
private JTable table;
    private TableSorter sorter;
public ABMD()
sorter = new TableSorter(new ABMDTableModel());
        table = new JTable(sorter);
        sorter.setTableHeader(table.getTableHeader());
        ListSelectionModel rowSM = table.getSelectionModel();
        rowSM.addListSelectionListener(new ListSelectionListener()
            public void valueChanged(ListSelectionEvent e)
                if (e.getValueIsAdjusting()) return;
                ListSelectionModel lsm = (ListSelectionModel)e.getSource();
                if (lsm.isSelectionEmpty())
                    viewDataButton.setEnabled(false);
                    getDataButton.setEnabled(false);
                    removeDataButton.setEnabled(false);
                else
                    int selectedRow = sorter.modelIndex(table.getSelectedRow());
                    PlanData currentPlanData = (PlanData) planArrayList.get(selectedRow);
                    if (!currentPlanData.getPlanListLoaded())
                        getDataButton.setEnabled(true);
                        viewDataButton.setEnabled(false);
                        removeDataButton.setEnabled(false);
                    else
                        getDataButton.setEnabled(false);
                        viewDataButton.setEnabled(true);
                        removeDataButton.setEnabled(true);
                    String desc = "";
                    desc = currentPlanData.getUniqueID();
                    descTextAreaValue.setText(desc);
class ABMDTableModel extends AbstractTableModel
        private String[] columnNames = {"Plan Local",
                "OPLAN",
                "Air Defense Plan",
                "Planning Period",
                "Defense Design",
                "Published Date"
        public int getColumnCount()
            return columnNames.length;
        public int getRowCount()
            return planArrayList.size();
        public String getColumnName(int col)
            return columnNames[col];
        public Object getValueAt(int row, int col)
            PlanData planData = (PlanData) planArrayList.get(row);
            switch(col)
                case 0:
                    return Boolean.valueOf(planData.getPlanListLoaded());
                case 1:
                    return planData.getOplan();
                case 2:
                    return planData.getAirDefensePlan();
                case 3:
                    return planData.getPlanningPeriod();
                case 4:
                    return planData.getDefenseDesign();
                case 5:
                    return planData.getPublishedDate();
            throw new IllegalArgumentException("Illegal Column: " + getColumnName(col));
        public Class getColumnClass(int c)
            return getValueAt(0, c).getClass();
        public boolean isCellEditable(int row, int col)
            return false;
}

Answer 1

I can't for the life of me, figure out how the data is loadedLooking at the get value method we see:
PlanData planData = (PlanData) planArrayList.get(row);Therefore the data is store in the "planArrayList". So the data is loaded whenever you add data to that ArrayList.