    1   package groovy.swing;
    2
    3   import java.util.logging.Level;
    4   import java.util.logging.Logger;
    5
    6   import javax.swing.table.AbstractTableModel;
    7
    8   /***
    9    * A sample table model
    10   *
    11   * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
    12   * @version $Revision: 1.2 $
    13   */
    14  public class MyTableModel extends AbstractTableModel {
    15
    16      private static final Logger log = Logger.getLogger(MyTableModel.class.getName());
    17
    18      public MyTableModel() {
    19      }
    20
    21      final String[] columnNames = { "First Name", "Last Name", "Sport", "# of Years", "Vegetarian" };
    22      final Object[][] data = { { "Mary", "Campione", "Snowboarding", new Integer(5), new Boolean(false)}, {
    23              "Alison", "Huml", "Rowing", new Integer(3), new Boolean(true)
    24              }, {
    25              "Kathy", "Walrath", "Chasing toddlers", new Integer(2), new Boolean(false)
    26              }, {
    27              "Mark", "Andrews", "Speed reading", new Integer(20), new Boolean(true)
    28              }, {
    29              "Angela", "Lih", "Teaching high school", new Integer(4), new Boolean(false)
    30              }
    31      };
    32
    33      public int getColumnCount() {
    34          return columnNames.length;
    35      }
    36
    37      public int getRowCount() {
    38          return data.length;
    39      }
    40
    41      public String getColumnName(int col) {
    42          return columnNames[col];
    43      }
    44
    45      public Object getValueAt(int row, int col) {
    46          return data[row][col];
    47      }
    48
    49      /*
    50       * JTable uses this method to determine the default renderer/
    51       * editor for each cell.  If we didn't implement this method,
    52       * then the last column would contain text ("true"/"false"),
    53       * rather than a check box.
    54       */
    55      public Class getColumnClass(int c) {
    56          return getValueAt(0, c).getClass();
    57      }
    58
    59      /*
    60       * Don't need to implement this method unless your table's
    61       * editable.
    62       */
    63      public boolean isCellEditable(int row, int col) {
    64          //Note that the data/cell address is constant,
    65          //no matter where the cell appears onscreen.
    66          if (col < 2) {
    67              return false;
    68          }
    69          else {
    70              return true;
    71          }
    72      }
    73
    74      /*
    75       * Don't need to implement this method unless your table's
    76       * data can change.
    77       */
    78      public void setValueAt(Object value, int row, int col) {
    79          if (log.isLoggable(Level.FINE)) {
    80              log.fine(
    81                  "Setting value at " + row + "," + col + " to " + value + " (an instance of " + value.getClass() + ")");
    82          }
    83
    84          if (data[0][col] instanceof Integer && !(value instanceof Integer)) {
    85              //With JFC/Swing 1.1 and JDK 1.2, we need to create
    86              //an Integer from the value; otherwise, the column
    87              //switches to contain Strings.  Starting with v 1.3,
    88              //the table automatically converts value to an Integer,
    89              //so you only need the code in the 'else' part of this
    90              //'if' block.
    91              //XXX: See TableEditDemo.java for a better solution!!!
    92              try {
    93                  data[row][col] = new Integer(value.toString());
    94                  fireTableCellUpdated(row, col);
    95              }
    96              catch (NumberFormatException e) {
    97                  log.log(Level.SEVERE, "The \"" + getColumnName(col) + "\" column accepts only integer values.");
    98              }
    99          }
    100         else {
    101             data[row][col] = value;
    102             fireTableCellUpdated(row, col);
    103         }
    104     }
    105
    106 }