Union Data Table Example
// Example from http://www.crionics.com/products/opensource/faq/swing_ex/SwingExamples.html
/* (swing1.1beta3) */
import java.awt.Container;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.Vector;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JSeparator;
import javax.swing.JTable;
import javax.swing.UIManager;
import javax.swing.SwingConstants;
import javax.swing.event.TableModelEvent;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.DefaultTableModel;
/**
* @version 1.0 11/09/98
*/
public class UnionDataExample extends JFrame {
UnionDataExample() {
super("UnionData Example");
setSize(300, 200);
final String[] headers = { "a", "b", "c", "d" };
final String[][] data = new String[6][headers.length];
final AbstractTableModel dmAB = new AbstractTableModel() {
public int getRowCount() {
return data.length;
}
public int getColumnCount() {
return headers.length;
}
public String getColumnName(int col) {
return headers[col];
}
public Object getValueAt(int row, int col) {
return data[row][col];
}
};
final int rowCountA = 3;
DefaultTableModel dmA = new DefaultTableModel(data, headers) {
public int getRowCount() {
return rowCountA;
}
public Object getValueAt(int row, int col) {
Vector rowVector = (Vector) dataVector.elementAt(row);
return rowVector.elementAt(col);
}
public void setValueAt(Object value, int row, int col) {
data[row][col] = (String) value;
Vector rowVector = (Vector) dataVector.elementAt(row);
rowVector.setElementAt(value, col);
TableModelEvent event = new TableModelEvent(this, row, row, col);
fireTableChanged(event);
dmAB.fireTableChanged(event);
}
};
DefaultTableModel dmB = new DefaultTableModel(data, headers) {
public int getRowCount() {
return rowCountA;
}
//public int getRowCount() { return data.length - rowCountA; }
public Object getValueAt(int row, int col) {
// Vector rowVector = (Vector) dataVector.elementAt(row
// + rowCountA);
Vector rowVector = (Vector) dataVector.elementAt(2);
return rowVector.elementAt(col);
}
public void setValueAt(Object value, int row, int col) {
int sRow = row + rowCountA;
data[sRow][col] = (String) value;
Vector rowVector = (Vector) dataVector.elementAt(sRow);
rowVector.setElementAt(value, col);
TableModelEvent event = new TableModelEvent(this, sRow, sRow,
col);
fireTableChanged(event);
dmAB.fireTableChanged(event);
}
};
JScrollPane scrollA = new JScrollPane(new JTable(dmA));
JScrollPane scrollB = new JScrollPane(new JTable(dmB));
JScrollPane scrollAB = new JScrollPane(new JTable(dmAB));
Box box = new Box(BoxLayout.Y_AXIS);
box.add(new JLabel("Table A"));
box.add(scrollA);
box.add(new JSeparator(SwingConstants.VERTICAL));
box.add(new JLabel("Table B"));
box.add(scrollB);
Box boxAB = new Box(BoxLayout.Y_AXIS);
boxAB.add(new JLabel("Table A + B"));
boxAB.add(scrollAB);
Container content = getContentPane();
content.setLayout(new BoxLayout(content, BoxLayout.X_AXIS));
content.add(box);
content.add(new JSeparator(SwingConstants.HORIZONTAL));
content.add(boxAB);
}
public static void main(String[] args) {
UnionDataExample frame = new UnionDataExample();
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
frame.setVisible(true);
}
}
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