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import java.awt.BorderLayout;
import java.awt.GridLayout;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.event.TableModelEvent;
import javax.swing.event.TableModelListener;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;
class SampleSortingTableModel extends AbstractTableModel implements TableModelListener {
protected TableModel base;
protected int sortColumn;
protected int[] row;
public SampleSortingTableModel(TableModel tm, int sortColumn) {
this.base = tm;
this.sortColumn = sortColumn;
tm.addTableModelListener(this);
rebuild();
}
public Class getColumnClass(int c) {
return base.getColumnClass(c);
}
public int getColumnCount() {
return base.getColumnCount();
}
public String getColumnName(int c) {
return base.getColumnName(c);
}
public int getRowCount() {
return base.getRowCount();
}
public Object getValueAt(int r, int c) {
return base.getValueAt(row[r], c);
}
public boolean isCellEditable(int r, int c) {
return base.isCellEditable(row[r], c);
}
public void setValueAt(Object value, int r, int c) {
base.setValueAt(value, row[r], c); // Notification will cause re-sort
}
public void tableChanged(TableModelEvent event) {
rebuild();
}
protected void rebuild() {
int size = base.getRowCount();
row = new int[size];
for (int i = 0; i < size; i++) {
row[i] = i;
}
sort();
}
protected void sort() { // Sort and notify listeners
for (int i = 1; i < row.length; i++) {
int j = i;
while (j > 0 && compare(j - 1, j) > 0) {
int temp = row[j];
row[j] = row[j - 1];
row[j - 1] = temp;
j--;
}
}
fireTableStructureChanged();
}
protected int compare(int i, int j) {
String s1 = base.getValueAt(row[i], sortColumn).toString();
String s2 = base.getValueAt(row[j], sortColumn).toString();
return s1.compareTo(s2);
}
}
public class SortableTableModelAbstractTableModel extends JFrame {
DefaultTableModel model = new DefaultTableModel(new Object[][] { { "this", "1" },
{ "text", "2" }, { "will", "3" }, { "be", "4" }, { "sorted", "5" } }, new Object[] {
"Column 1", "Column 2" });
public SortableTableModelAbstractTableModel() {
setDefaultCloseOperation(EXIT_ON_CLOSE);
JTable tableOrig = new JTable(model);
tableOrig.setAutoResizeMode(JTable.AUTO_RESIZE_ALL_COLUMNS);
JTable tableSorted = new JTable(new SampleSortingTableModel(model, 0));
tableSorted.setAutoResizeMode(JTable.AUTO_RESIZE_ALL_COLUMNS);
JPanel panel = new JPanel(new GridLayout(1, 2));
panel.add(new JScrollPane(tableOrig));
panel.add(new JScrollPane(tableSorted));
getContentPane().add(panel, BorderLayout.CENTER);
pack();
}
public static void main(String arg[]) {
new SortableTableModelAbstractTableModel().setVisible(true);
}
}
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