Java example source code file (TableExample.java)

This example Java source code file (TableExample.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

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Java - Java tags/keywords

awt, connectoptionnames, dimension, event, gridlayout, gui, jbutton, jdbcadapter, jlabel, jpanel, jscrollpane, jtable, jtextfield, log, logging, rectangle, string, swing, tableexample, tablesorter

The TableExample.java Java example source code

/*
 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   - Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   - Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 *   - Neither the name of Oracle nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/*
 * This source code is provided to illustrate the usage of a given feature
 * or technique and has been deliberately simplified. Additional steps
 * required for a production-quality application, such as security checks,
 * input validation and proper error handling, might not be present in
 * this sample code.
 */



/**
 * A a UI around the JDBCAdaptor, allowing database data to be interactively
 * fetched, sorted and displayed using Swing.
 *
 * NOTE: This example uses a modal dialog via the static convenience methods in
 * the JOptionPane. Use of modal dialogs requires JDK 1.1.4 or greater.
 *
 * @author Philip Milne
 */
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.LayoutManager;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.UIManager;
import javax.swing.UIManager.LookAndFeelInfo;
import javax.swing.border.BevelBorder;


public final class TableExample implements LayoutManager {

    static String[] ConnectOptionNames = { "Connect" };
    static String ConnectTitle = "Connection Information";
    Dimension origin = new Dimension(0, 0);
    JButton fetchButton;
    JButton showConnectionInfoButton;
    JPanel connectionPanel;
    JFrame frame; // The query/results window.
    JLabel userNameLabel;
    JTextField userNameField;
    JLabel passwordLabel;
    JTextField passwordField;
    // JLabel      queryLabel;
    JTextArea queryTextArea;
    JComponent queryAggregate;
    JLabel serverLabel;
    JTextField serverField;
    JLabel driverLabel;
    JTextField driverField;
    JPanel mainPanel;
    TableSorter sorter;
    JDBCAdapter dataBase;
    JScrollPane tableAggregate;

    /**
     * Brigs up a JDialog using JOptionPane containing the connectionPanel.
     * If the user clicks on the 'Connect' button the connection is reset.
     */
    void activateConnectionDialog() {
        if (JOptionPane.showOptionDialog(tableAggregate, connectionPanel,
                ConnectTitle,
                JOptionPane.DEFAULT_OPTION, JOptionPane.INFORMATION_MESSAGE,
                null, ConnectOptionNames, ConnectOptionNames[0]) == 0) {
            connect();
            frame.setVisible(true);
        } else if (!frame.isVisible()) {
            System.exit(0);
        }
    }

    /**
     * Creates the connectionPanel, which will contain all the fields for
     * the connection information.
     */
    public void createConnectionDialog() {
        // Create the labels and text fields.
        userNameLabel = new JLabel("User name: ", JLabel.RIGHT);
        userNameField = new JTextField("app");

        passwordLabel = new JLabel("Password: ", JLabel.RIGHT);
        passwordField = new JTextField("app");

        serverLabel = new JLabel("Database URL: ", JLabel.RIGHT);
        serverField = new JTextField("jdbc:derby://localhost:1527/sample");

        driverLabel = new JLabel("Driver: ", JLabel.RIGHT);
        driverField = new JTextField("org.apache.derby.jdbc.ClientDriver");


        connectionPanel = new JPanel(false);
        connectionPanel.setLayout(new BoxLayout(connectionPanel,
                BoxLayout.X_AXIS));

        JPanel namePanel = new JPanel(false);
        namePanel.setLayout(new GridLayout(0, 1));
        namePanel.add(userNameLabel);
        namePanel.add(passwordLabel);
        namePanel.add(serverLabel);
        namePanel.add(driverLabel);

        JPanel fieldPanel = new JPanel(false);
        fieldPanel.setLayout(new GridLayout(0, 1));
        fieldPanel.add(userNameField);
        fieldPanel.add(passwordField);
        fieldPanel.add(serverField);
        fieldPanel.add(driverField);

        connectionPanel.add(namePanel);
        connectionPanel.add(fieldPanel);
    }

    public TableExample() {
        mainPanel = new JPanel();

        // Create the panel for the connection information
        createConnectionDialog();

        // Create the buttons.
        showConnectionInfoButton = new JButton("Configuration");
        showConnectionInfoButton.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent e) {
                activateConnectionDialog();
            }
        });

        fetchButton = new JButton("Fetch");
        fetchButton.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent e) {
                fetch();
            }
        });

        // Create the query text area and label.
        queryTextArea = new JTextArea("SELECT * FROM APP.CUSTOMER", 25, 25);
        queryAggregate = new JScrollPane(queryTextArea);
        queryAggregate.setBorder(new BevelBorder(BevelBorder.LOWERED));

        // Create the table.
        tableAggregate = createTable();
        tableAggregate.setBorder(new BevelBorder(BevelBorder.LOWERED));

        // Add all the components to the main panel.
        mainPanel.add(fetchButton);
        mainPanel.add(showConnectionInfoButton);
        mainPanel.add(queryAggregate);
        mainPanel.add(tableAggregate);
        mainPanel.setLayout(this);

        // Create a Frame and put the main panel in it.
        frame = new JFrame("TableExample");
        frame.addWindowListener(new WindowAdapter() {

            @Override
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });
        frame.setBackground(Color.lightGray);
        frame.getContentPane().add(mainPanel);
        frame.pack();
        frame.setVisible(false);
        frame.setBounds(200, 200, 640, 480);

        activateConnectionDialog();
    }

    public void connect() {
        dataBase = new JDBCAdapter(
                serverField.getText(),
                driverField.getText(),
                userNameField.getText(),
                passwordField.getText());
        sorter.setModel(dataBase);
    }

    public void fetch() {
        dataBase.executeQuery(queryTextArea.getText());
    }

    public JScrollPane createTable() {
        sorter = new TableSorter();

        //connect();
        //fetch();

        // Create the table
        JTable table = new JTable(sorter);
        // Use a scrollbar, in case there are many columns.
        table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);

        // Install a mouse listener in the TableHeader as the sorter UI.
        sorter.addMouseListenerToHeaderInTable(table);

        JScrollPane scrollpane = new JScrollPane(table);

        return scrollpane;
    }

    public static void main(String s[]) {
        // Trying to set Nimbus look and feel
        try {
            for (LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (Exception ex) {
            Logger.getLogger(TableExample.class.getName()).log(Level.SEVERE,
                    "Failed to apply Nimbus look and feel", ex);
        }

        new TableExample();
    }

    public Dimension preferredLayoutSize(Container c) {
        return origin;
    }

    public Dimension minimumLayoutSize(Container c) {
        return origin;
    }

    public void addLayoutComponent(String s, Component c) {
    }

    public void removeLayoutComponent(Component c) {
    }

    public void layoutContainer(Container c) {
        Rectangle b = c.getBounds();
        int topHeight = 90;
        int inset = 4;
        showConnectionInfoButton.setBounds(b.width - 2 * inset - 120, inset, 120,
                25);
        fetchButton.setBounds(b.width - 2 * inset - 120, 60, 120, 25);
        // queryLabel.setBounds(10, 10, 100, 25);
        queryAggregate.setBounds(inset, inset, b.width - 2 * inset - 150, 80);
        tableAggregate.setBounds(new Rectangle(inset,
                inset + topHeight,
                b.width - 2 * inset,
                b.height - 2 * inset - topHeight));
    }
}