Detecting boolean value in JTable boolean field

Hi
I like to run a process after checking whether the user has selected a boolean field in JTable. I have created JTable with Boolean column, how do I detect the user has selected rows?
Pl. help

table.getSelectionModel().addListSelectionListener(...);
For more information see this section from the Swing tutorial on "How to Write a List Selection Listener":
http://java.sun.com/docs/books/tutorial/uiswing/events/listselectionlistener.html

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JTable cell color overriding Boolean values displayed as checkboxes. Fix?

I have a JTable column of Boolean values that automatically appear as checkboxes. When I apply my DefaultTableCellRenderer to this column, the checkbox disappears and a "false" or "true" appears instead. But if I mouseclick on the cell, the checkbox will appear momentarily.
Any suggestions for getting the Boolean value displayed as a checkbox and seeing my colors change? (I suppose the easy way is using JCheckBox, but I'm curious if I can do it using Boolean)
Thanks for the help. Code follows for the cell renderer.
class ColorRenderer extends DefaultTableCellRenderer{
public ColorRenderer() {
super();
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
if (isSelected == true) {
setBackground(Color.getHSBColor(100, 100, 1));
setForeground(Color.BLACK);
} else {
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Wouldn't extend DefaultTableCellRenderer as that extends a JLabel
I would extend a JCheckBox and implement TableCellRenderer.

Filter Dataset based on a boolean value

Hi,
I have implemented a multivalued filter in SSRS,which works fine . Now I am trying to set up a second filter such that based on a boolean condition i would like to filter the dataset based on a series of values.
The boolean parameter is accomplished as :
If the user selects "True" the dataset field "Location" has to be filtered based on 3 values "NY,NJ,DC" . If False is selected no filter will be applied on the dataset . The Parameter name is 'Param_Loc' and of datatype 'Integer'
Can you help me with the Filter expression i have to use here :
Looking forward to hearing from you .
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Hi Mendel,
Try this once
Go to Filters in dataset properties-> then in the filter expression do the following stuff
Expression =Select the value from the dataset,In ur case it is
"Location"
Select Type = "Text"
Operator = "in"
Value = IIF(Parameters!Param_Loc.Value=True,"NY,NJ,DC",Fields!Location.Value)
In the above IIF condition what I am doing is passing the filter values if condition is True i.e if Param_Loc is selected .If Param_Loc value is not selected i.e False then u don't want to apply any filter right.So I am passing all the dataset
values in else condition.since 1=1 is universal Truth.
Please let me know if any issues and vote this answer if it helps u.
Kishore Babu K
Thanks Kishore and Visakh . Your inputs were really helpful . Kudos to you guys .
There was a slight issue with the expression . So i modified it as :
IIF(Parameters!Param_Loc.Value="1",Split("NY,NJ,DC",","),Fields!Location.Value)
Thanks a lot,
Grigory

Cell with boolean value not rendering properly in Swing (custom renderer)

Hello All,
I have a problem rendenring boolean values when using a custom cell renderer inside a JTable; I managed to reproduce the issue with a dummy application. The application code follows:
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.logging.Logger;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.SwingUtilities;
* Simple GUI that uses custom cell rendering
* @author josevnz
public final class SimpleGui extends JFrame {
     private static final long serialVersionUID = 1L;
     private Logger log = Logger.getLogger(SimpleGui.class.getName());
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          setPreferredSize(new Dimension(500, 500));
          setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          setLayout(new BorderLayout());
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          simpleTable = new JTable(new SimpleTableModel());
          simpleTable.getColumnModel().getColumn(2).setCellRenderer(new HasItCellRenderer());
          SpecialCellRenderer specRen = new SpecialCellRenderer(log);
          simpleTable.setDefaultRenderer(Double.class, specRen);
          simpleTable.setDefaultRenderer(String.class, specRen);
          simpleTable.setDefaultRenderer(Date.class, specRen);
          //simpleTable.setDefaultRenderer(Boolean.class, specRen);
          add(new JScrollPane(simpleTable), BorderLayout.CENTER);
          pack();
          setVisible(true);
     private void populate() {
          List <List<Object>>people = new ArrayList<List<Object>>();
          List <Object>people1 = new ArrayList<Object>();
          people1.add(0, "Jose");
          people1.add(1, 500.333333567);
          people1.add(2, Boolean.TRUE);
          people1.add(3, new Date());
          people.add(people1);
          List <Object>people2 = new ArrayList<Object>();
          people2.add(0, "Yes, you!");
          people2.add(1, 100.522222);
          people2.add(2, Boolean.FALSE);
          people2.add(3, new Date());
          people.add(people2);
          List <Object>people3 = new ArrayList<Object>();
          people3.add(0, "Who, me?");
          people3.add(1, 0.00001);
          people3.add(2, Boolean.TRUE);
          people3.add(3, new Date());
          people.add(people3);
          List <Object>people4 = new ArrayList<Object>();
          people4.add(0, "Peter Parker");
          people4.add(1, 11.567444444);
          people4.add(2, Boolean.FALSE);
          people4.add(3, new Date());
          people.add(people4);
          ((SimpleTableModel) simpleTable.getModel()).addAll(people);
      * @param args
      * @throws InvocationTargetException
      * @throws InterruptedException
     public static void main(String[] args) throws InterruptedException, InvocationTargetException {
          final SimpleGui instance = new SimpleGui();
          SwingUtilities.invokeAndWait(new Runnable() {
               @Override
               public void run() {
                    instance.constructGui();
          instance.populate();
}I decided to write a more specific renderer just for that column:
import java.awt.Color;
import java.awt.Component;
import javax.swing.JTable;
import javax.swing.UIManager;
import javax.swing.table.DefaultTableCellRenderer;
* Cell renderer used only by the DividendElement table
* @author josevnz
final class HasItCellRenderer extends DefaultTableCellRenderer {
     protected static final long serialVersionUID = 2596173912618784286L;
     private Color hasIt = new Color(255, 225, 0);
     public HasItCellRenderer() {
          super();
          setOpaque(true);
     @Override
     public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
          Component comp = super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
          int desCol = table.convertColumnIndexToView(1);
          if (! isSelected && value instanceof Boolean && column == desCol) {
               if (((Boolean) value).booleanValue()) {
                    comp.setForeground(hasIt);
               } else {
                    comp.setForeground(UIManager.getColor("table.foreground"));
          return comp;
      * Override for performance reasons
     @Override
     public void firePropertyChange(String propertyName, boolean oldValue, boolean newValue) {
          // EMPTY
     @Override
     protected void firePropertyChange(String propertyName, Object oldValue, Object newValue) {
          // EMPTY
     @Override
     public void revalidate() {
          // EMPTY
     @Override
     public void validate() {
          // EMPTY
} // end classBut the rendering comes all wrong (a String saying true or false, not the expected checkbox from the default renderer) and also there is a weird flickring effect as this particular boolean column is editable (per table model, not show here)...
I can post the table model and the other renderer if needed (didn't want to put too much code on the question, at least initiallty).
Should I render a checkbox myself for this cell in the custom renderer? I'm puzzled as I expected the default renderer part of the code to do this for me instead.
Thanks!
Edited by: josevnz on Apr 14, 2009 12:35 PM
Edited by: josevnz on Apr 14, 2009 12:37 PM

camickr
Thats because the default render is a JLabel and it just displays the text from the toString() method of the Object in the table model.What I meant to say is that I expected the JCheckbox not a String representation of the boolean value.
Thats because a different renderer is used depending on the Class of data in the column. Look at the source code for the JTable class to see what the "default >renderer for the Boolean class" is. Then you can extend that or if its a private class then you will need to copy all the code and customize it.At the end I looked at the code and replicated the functionality I needed. I thought than maybe there was a way to avoid replicating the same logic all over again in order to implement this functionality. Good advice, though.
see you learned nothing from your last posting. This is NOT a SSCCE. 90% of the code you posted is completely irrelevant for the described problem. There is abosutelly no need to post the custom TableModel, because there is no need to use a custom TableModel for this problem. The TableModel has nothing to do with how a column is rendererd.The custom table model returns the type of the column (giving a hint to the renderer on what to expect, right?) and for the one that had a problem it says than the class is Boolean. That's why I mentioned it:
public Class getColumnClass(int columnIndex) {
    // Code omited....
You also posted data for 4 columns worth of data. Again, irrelevant. Your question is about a single column containing Boolean data, so forget about the other columns.
When creating a SSCCE you don't start with your existing code and "remove" code. You start with a brand new class and only add in what is important. That way hopefully if you made a mistake the first time you don't repeat it the second time.That's what I did, is not the real application. I copy & pasted code in a haste from this dummy program on this forum, not the best approach as it gave the wrong impression.
Learn how to write a proper SSCCE if you want help in the future. Point taken, but there is NO need for you to be rude. Your help is appreciated.
Regards,
Jose.

How to display result set boolean value as a check box

Hi guys,
I am getting the data which include boolean from the database, i need to display the boolean values as check box, see my code, its displaying the data into the table with the boolean values as true and false, how to make it in check boxes
package swing2.org;
import java.awt.GridBagLayout;
import javax.swing.JPanel;
import java.awt.Color;
import javax.swing.BorderFactory;
import javax.swing.border.BevelBorder;
import javax.swing.table.AbstractTableModel;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import java.awt.Container;
import java.awt.GridBagConstraints;
import java.awt.ComponentOrientation;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
public class Panel2 extends JPanel {
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abstract class ResultSetTableModel extends AbstractTableModel
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      catch(SQLException e)
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   { try
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      catch(SQLException e)
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   { try
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      catch(SQLException e)
      { System.out.println("Error " + e);
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   protected ResultSet getResultSet()
   { return rs;
   private ResultSet rs;
   private ResultSetMetaData rsmd;
class CachingResultSetTableModel extends ResultSetTableModel
{ public CachingResultSetTableModel(ResultSet aResultSet)
   { super(aResultSet);
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         int cols = getColumnCount();
         ResultSet rs = getResultSet();
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{ public ResultSetFrame()
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add a
public Class getColumnClass(int col) {
     return getValueAt(0, col).getClass();
}in your ResultSetTableModel which extends AbstractTableModel.
A simple example
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.SwingUtilities;
import javax.swing.table.AbstractTableModel;
public class SimpleDemo extends JFrame {
    public SimpleDemo() {
        createAndShowUI();
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        String[] columnName = {"CheckBox Column", "Data Column"};
        Object[][] data = {{new Boolean(true), "Data 1"},
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        JTable myTable = new JTable(model);
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        getContentPane().add(scrollPane);
        pack();
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        Object[][] data;
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            this.columnName = colName;
            this.data = theData;
            fireTableStructureChanged();
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        public int getColumnCount() {
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        public Class getColumnClass(int c) {
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            public void run(){
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}

Re: Express Query on boolean values

Hi Simon,
When the model is run, however, I am able to enter values in the
other fields and query on them, but I am unable to change the value
of the checkbox that Express generates for the boolean attribute. If
the query is run, the data returned is for both true and false values
of this field.
Why am I unable to query on this field?The literal answer to your question is: Because Express does not
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The reason is that it is difficult to know how to interpret a
ToggleField when it comes to search criteria. If "off" means
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If you want to override this behavior, you'll need to know the
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Express uses a special widget state to allow users to enter search
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would not accept these operators (DataFields displaying integers
or dates). This widget state is called FS_QUERY. What you are
seeing is that when ToggleFields are in the FS_QUERY state, they
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The SetWidgetState method is what sets the widget state to FS_QUERY
when the window enters search mode. So to one step you must take
to override this behavior is to write a custom SetWidgetState method
that sets the widget state to FS_UPDATE if the passed widget is a
toggle field and the passed widget is a ToggleField.
But this will only allow you to change the state of the ToggleField
while in Search mode. The next problem is that the window will ignore
the value of the ToggleField regardless of what it is!
This time the method of interest is SetSearchConstraint. It looks at
the widget to get the search constraint. It will only look at DataField
and ListField widgets, however, and ignore all others. You need to
create a custom version that looks at the ToggleField and interprets
the value (look in the Customizing Express applications doc for more
info on modifying the search criteria).
Also, the checkbox is highlighted in yellow during the entry of
search criteria, even though I have set its colour in the window
workshop customization.
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This is more difficult to override, as Express is not set up for
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However, you can try setting the ToggleField color in
DisplayCurrentRecord
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and
super.SetResultSetFromData();
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C_RED;
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ExpressWindows.ArrayDesc that is defined on
ExpressWindows.ExpressArrayWindow.
GetField is defined on this class. Take a peek at it to get a better
understanding of what it does.
Good luck!
Kerry

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Message Edited by Jeff in Pleasanton on 07-19-2006 03:42 PM
Message Edited by Jeff in Pleasanton on 07-19-2006 03:44 PM
Jeff
Climbing the Labview learning curve!
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Attachments:
FixConfiguration.gif ‏6 KB
BooleanInitialValue.gif ‏13 KB
ErrorList.gif ‏13 KB

F:selectItems with default boolean value

Hi!
I have problem with using tag f:selectItems. I wrote converter in order to connect my items from the ManyChecbox list directly with my objects instead of strings. Now i would like to connect boolean values with my backing bean, so that when the page is rendered the default choice is marked. How can i do this?
<h:selectManyCheckbox value="#{myBean.selectedItems}" converter="MyConverter" >
<f:selectItems value="#{myBean.allItems}"/>
</h:selectManyCheckbox>

well the component is linked to your backing bean property 'myBean.selectedItems', which is probably a list or something. Whatever value in this list is true will be checked, so make the 'default' one true when you initially create the list (for example, in a @PostConstruct annotated method).

How to set default value in transient boolean attribute in VO in ADF

Hi ADF Experts,
I have requirement like,I have viewObject with one transient booelan attribute,
I want to set default value of that boolean attribute as "True"
How can I achive that please help,
Tried every thing but no luck.

Hi,
I am not sure what is the use of setting a default value for a transient attribute in a read-only VO.
However, why not include that attribute with a default value in the query itself?
Something like
SELECT
Empno, Ename, Deptno, 'true' as BooleanTransAttr
FROM EMP
and set the type of the attribute to Boolean?
-Arun

Detecting boolean value in JTable boolean field

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