Adding Object to Custom Table Model

I am using the below code as my custom table model.  Now, when I'm using either method .addMachine or .addMachineList, I do not get the objects to load in the table.  I know the JTable is taking the model because the column headers are being assigned.  Now, if I use my constructor which takes in a List, it still does not render the data.  Am I missing a function from the DefaultTableModel that I need to override?

Thanks,
David

      public class MachineListModel extends AbstractTableModel {
          private ArrayList datalist = new ArrayList();
          private String[] columns={"Name",
                                    "Description",
                                    "Job Number",
                                    "Dept"};
                                   
          public MachineListModel(){
             
          }
         
          public MachineListModel(List l){
              datalist.addAll(l);
          }
         
          public void addMachine(Machine m){
              datalist.add(m);
              fireTableDataChanged();
          }
         
          public void addMachineList(List l){
              datalist.addAll(l);
              fireTableDataChanged();
          }
         
          public Machine removeMachineAt(int row){
              Machine machine = (Machine)datalist.remove(row);
              fireTableDataChanged();
              return machine;
          }
         
          public Machine getMachineAt(int row){
              return (Machine)datalist.get(row);
          }
         
          public String getColumnName(int col){
              return columns[col];
          }
           
          public int getRowCount() {
           return 0;
          }

          public int getColumnCount() {
           return columns.length;
          }

          public Object getValueAt(int row, int col) {
            Machine machine = (Machine)datalist.get(row);
            switch(col){
                case 0:
                    return machine.getName();
                case 1:
                    return machine.getDescription();
                case 2:
                    return machine.getJobnumber();
                case 3:
                    return machine.getDepartment();
                default:
                    return null;
            }
          }
}
lomidienAsked:
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objectsCommented:
>          public int getRowCount() {
>           return 0;
>          }

you aren't returning the row count.
should be:

return datalist.size();

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lomidienAuthor Commented:
Man Alive!!!  Another pair eyes are indeed a good thing.  :)  Looked right over that one.

Thanks,
David
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