Setting row identifiers in default table model

hey i'm making a default table model and i cant figure out how to make a row have an identifier. the column one is setColumnIdentifiers but there isn't a code that i could find for a row.. please help thanx kevin

You are correct, JTable does not support a TableRowModel, therefore it does not support setRowIdentifiers.
I'm not sure exactly what your requirement is so its hard to make a suggestion. You could add an extra column to your table to contain a row identifier. You could then remove this column from the TableColumnModel to prevent this column from being painted. This [url http://forum.java.sun.com/thread.jsp?forum=31&thread=411506]thread shows how to remove a column from the table.

Similar Messages

How to Add and delete a row while using Abstract Table Model

Hi,
I need to do the following functionalities in JTable.I've done tht but a small problem.
1. Adding a row (Using addRow() method from DefaultTableModel).
2. Deleting a row(Using setRowCount() method from Default Table Model).
3. Sorting the table based on the selection of column(Using TableSorter which is using AbstracTableModel).
As the sorting is mandatory i've to change my model to Abtract Table Model
The problem is this Abstract Table Model doesn't have any methods to Add a row or deleting a row (setRowCount()).If anybody has written any utility method for this using Abstract Table Model help me.

Using TableSorter which is using AbstracTableModel).If your talking about the TableSorter class from the Swing tutorial, then you create the TableSorter class by passing it a TableModel. There is no reason you can't use the DefaltTableModel.
I changed the code in TableSorterDemo as follows:
        String[] columnNames = {"First Name",
                                        "Last Name",
                                        "Sport",
                                        "# of Years",
                                        "Vegetarian"};
        Object[][] data = {
            {"Mary", "Campione",
             "Snowboarding", new BigDecimal(1), new Boolean(false)},
            {"Alison", "Huml",
             "Rowing", new BigDecimal(3), new Boolean(true)},
            {"Kathy", "Walrath",
             "Knitting", new BigDecimal(2), new Boolean(false)},
            {"Sharon", "Zakhour",
             "Speed reading", new BigDecimal(20), new Boolean(true)},
            {"Philip", "Milne",
             "Pool", new BigDecimal(10), new Boolean(false)}
          DefaultTableModel model = new DefaultTableModel(data, columnNames)
               public Class getColumnClass(int c)
                    return getValueAt(0, c).getClass();
        TableSorter sorter = new TableSorter(model);
//        TableSorter sorter = new TableSorter(new MyTableModel()); //ADDED THIS

PageUp/PageDown By using Default Table Model

Hi all,
iam using Default Table model for my jtable i want to do pageup and pagedown operation .
TableColumnModel cm1 = new DefaultTableColumnModel();
DefaultTablemodel md = new DefaultTableModel(row,col);
JTable t = new JTable(md,cm1);
i have 500 rows currently in my database i want to display 100 in the first page and if i press the pagedown button the next 100 has to be diplayed wether this is possible here.. if possible please help mee.

Hi,
could you please avoid double posting:
http://forum.java.sun.com/thread.jsp?forum=57&thread=566380&tstart=0&trange=15
especially with different subjects.
It considerably reduces the overall efficiency as people will try to
help you while the answer could already have been given in the another thread.
If you want to push up the stack your message, reply to it,
post more code, list the ideas that you've envisaged and so on.
regards.

JTable Problem(Default Table Model)

Hi all,
iam using Default Table model for my jtable i want to do pageup and pagedown operation .
TableColumnModel cm1 = new DefaultTableColumnModel();
DefaultTablemodel md = new DefaultTableModel(row,col);
JTable t = new JTable(md,cm1);
i have 500 rows currently in my database i want to display 100 in the first page and if i press the pagedown button the next 100 has to be diplayed wether this is possible here.. if possible please help mee.

sample code :
// PagingModel.java
// A larger table model that performs "paging" of its data. This model reports a
// small number of rows (e.g., 100 or so) as a "page" of data. You can switch pages
// to view all of the rows as needed using the pageDown( ) and pageUp( ) methods.
// Presumably, access to the other pages of data is dictated by other GUI elements
// such as up/down buttons, or maybe a text field that allows you to enter the page
// number you want to display.
import javax.swing.table.*;
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
class PagingModel extends AbstractTableModel {
protected int pageSize;
protected int pageOffset;
protected Record[] data;
public PagingModel( ) {
this(10000, 100);
public PagingModel(int numRows, int size) {
data = new Record[numRows];
pageSize = size;
// Fill our table with random data (from the Record( ) constructor).
for (int i=0; i < data.length; i++) {
data[i] = new Record( );
// Return values appropriate for the visible table part.
public int getRowCount( ) { return Math.min(pageSize, data.length); }
public int getColumnCount( ) { return Record.getColumnCount( ); }
// Work only on the visible part of the table.
public Object getValueAt(int row, int col) {
int realRow = row + (pageOffset * pageSize);
return data[realRow].getValueAt(col);
public String getColumnName(int col) {
return Record.getColumnName(col);
// Use this method to figure out which page you are on.
public int getPageOffset( ) { return pageOffset; }
public int getPageCount( ) {
return (int)Math.ceil((double)data.length / pageSize);
// Use this method if you want to know how big the real table is. You could also
// write "getRealValueAt( )" if needed.
public int getRealRowCount( ) {
return data.length;
public int getPageSize( ) { return pageSize; }
public void setPageSize(int s) {
if (s == pageSize) { return; }
int oldPageSize = pageSize;
pageSize = s;
pageOffset=(oldPageSize * pageOffset) / pageSize;
fireTableDataChanged( );
// Update the page offset and fire a data changed event (all rows).
public void pageDown( ) {
if (pageOffset < getPageCount( ) - 1) {
pageOffset++;
fireTableDataChanged( );
// Update the page offset and fire a data changed (all rows).
public void pageUp( ) {
if (pageOffset > 0) {
pageOffset--;
fireTableDataChanged( );
// We provide our own version of a scrollpane that includes
// the Page Up and Page Down buttons by default.
public static JScrollPane createPagingScrollPaneForTable(JTable jt) {
JScrollPane jsp = new JScrollPane(jt);
TableModel tmodel = jt.getModel( );
// Don't choke if this is called on a regular table . . .
if (! (tmodel instanceof PagingModel)) {
return jsp;
// Go ahead and build the real scrollpane.
final PagingModel model = (PagingModel)tmodel;
final JButton upButton = new JButton("Up");
upButton.setEnabled(false); // Starts off at 0, so can't go up
final JButton downButton = new JButton("Down");
if (model.getPageCount( ) <= 1) {
downButton.setEnabled(false); // One page...can't scroll down
upButton.addActionListener(new ActionListener( ) {
public void actionPerformed(ActionEvent ae) {
model.pageUp( );
// If we hit the top of the data, disable the Page Up button.
if (model.getPageOffset( ) == 0) {
upButton.setEnabled(false);
downButton.setEnabled(true);
downButton.addActionListener(new ActionListener( ) {
public void actionPerformed(ActionEvent ae) {
model.pageDown( );
// If we hit the bottom of the data, disable the Page Down button.
if (model.getPageOffset( ) == (model.getPageCount( ) - 1)) {
downButton.setEnabled(false);
upButton.setEnabled(true);
// Turn on the scrollbars; otherwise, we won't get our corners.
jsp.setVerticalScrollBarPolicy
(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
jsp.setHorizontalScrollBarPolicy
(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS);
// Add in the corners (page up/down).
jsp.setCorner(ScrollPaneConstants.UPPER_RIGHT_CORNER, upButton);
jsp.setCorner(ScrollPaneConstants.LOWER_RIGHT_CORNER, downButton);
return jsp;
// Record.java
// A simple data structure for use with the PagingModel demo
class Record {
static String[] headers = { "Record Number", "Batch Number", "Reserved" };
static int counter;
String[] data;
public Record( ) {
data = new String[] { "" + (counter++), "" + System.currentTimeMillis( ),
"Reserved" };
public String getValueAt(int i) { return data[i]; }
public static String getColumnName(int i) { return headers[i]; }
public static int getColumnCount( ) { return headers.length; }
class PagingTester extends JFrame {
public PagingTester( ) {
super("Paged JTable Test");
setSize(300, 200);
setDefaultCloseOperation(EXIT_ON_CLOSE);
PagingModel pm = new PagingModel( );
JTable jt = new JTable(pm);
// Use our own custom scrollpane.
JScrollPane jsp = PagingModel.createPagingScrollPaneForTable(jt);
getContentPane( ).add(jsp, BorderLayout.CENTER);
public static void main(String args[]) {
PagingTester pt = new PagingTester( );
pt.setVisible(true);
}

Jtable, sql, default table model

Hi all,
I need help. How do I create JTable, generaly Default table model and query which will work with the database. Thx.

Look to this example
[http://jfxstudio.wordpress.com/2009/05/25/the-graphic-database-front-end-ii/|http://jfxstudio.wordpress.com/2009/05/25/the-graphic-database-front-end-ii/]
tables, database and advanced graphics

Is it posiible to paging up paging down in Jtable using Default Table Model

Hi All!
Is it possible to do Page up and Page down in JTable using Default Tble Model?
Kindly reply!

yes
it is posiible to paging up paging down in Jtable using Default Table Model. just go thru the JAVA API you will get the results.

Custom Table Model from Default Table Model

I'm creating a customised table model to create a table with column header and empty rows.But it is throwing Component paint_imediatly error.If i pass in empty string to the row vector then setNumRows then no problem. If i do like this later it throws me error in my addNewRow method which was working fine before.Can anyone help?I would realy apreaciate it.Thank you.
Kavitha

This must be your lucky day :)
Here is my version of an EditableTableModel which displays an emptyline as the last line
import java.io.*;
import java.util.*;
import javax.swing.table.*;
import javax.swing.event.*;
* Custom TableModel, allows addition and removal of records/rows and editting of existing values.
* it also keeps track over which rows have been altered.
* column 0 is a boolean indicating wheter or not to keep this row/record
* @author Maurice Marrink
* @version 1.0
public class EditableTableModel extends AbstractTableModel implements Serializable, TableModelListener
     protected ArrayList keep,changed;          //houden bij of een rij gedel moet worden en of ie is veranderd (false = delete)
     protected ArrayList[] DATA;
     protected int emptyLineIndex;
     protected String[] kolomNamen;
     protected Object[] kolomTypen;          // bevat een object van dezelfde class als die kolom
     protected int newRowsIndex;               // houd bij vanaf welke rij niewe regels zijn toegevoegd ivm het opslaan in de db
     protected int[]primecolumns;          //houd bij welke kolommen ingevuld moeten worden voordat de volgende regel getoond wordt (default= kolom 1)
     public EditableTableModel()
          keep = new ArrayList();               //visible
          changed=new ArrayList();               // not visisble
          primecolumns=new int[0];
          DATA=new ArrayList[0];
          kolomNamen =new String[0];
          kolomTypen=new Object[0];
          emptyLineIndex=-1;
          newRowsIndex=-1;
     * the constructor, creates a new EditableTableModel
     *@param data          an array of ArrayLists each arrayList contains the values of an entire column
     *@param names          an array containg the names of the columns
     *@param type          an array containing Objects which correspond to the objects in the columns
     public EditableTableModel(ArrayList[] data, String[] names, Object[] type)
          keep = new ArrayList();               //visible
          changed=new ArrayList();               // not visisble
          primecolumns=new int[1];
          primecolumns[0]=1;
          DATA=data;
          for(int i=0;i<getRowCount();i++)
               keep.add(new Boolean(true));
               changed.add(new Boolean(false));
          kolomNamen=names;
          kolomTypen=type;
          emptyLineIndex=getRowCount()-1;
          addNewLine();
          newRowsIndex=emptyLineIndex;               // nieuwe regels beginnen op de lege regel
          addTableModelListener(this);
     * @return the number of rows/records
     public int getRowCount()
          return DATA[0].size();
     *@return the number of columns
     public int getColumnCount()
          return DATA.length+1;
     * returns the object containing the value for this cell
     * indexes start at 0 (wheter or not to keep this row), but the actual data starts at 1
     *@param row          the row in which the cell resides
     *@param column     the column in which the cell resides
     *@return the value of the cell wrapped in the appropiate Object
     public Object getValueAt(int row, int column)
          if(column==0)
               return keep.get(row);
          else
               return DATA[column-1].get(row);
     * allows editing of an existing value
     *@param value          the new value, should be of the same Object Type as the existing one
     *@param row               the row nr of the cell
     *@param col               the column nr of the cell
     public void setValueAt(Object value, int row, int col)
          if(col==0)
               keep.set(row,value);
          else
               DATA[col-1].set(row,value);
               changed.set(row, new Boolean(true));
          fireTableCellUpdated(row, col);
     * adds a new "empty" row after all the PrimeColums of the last row have been filled with an acceptable value
     *@see setPrimeColumns
     protected void addNewLine()
          try
               for(int i=0;i<DATA.length;i++)
                    if(kolomTypen[i] instanceof Integer)
                         DATA.add(new Integer(-1));
                    else
                    if(kolomTypen[i] instanceof Boolean)
                         DATA[i].add(new Boolean(false));
                    else
                    if(kolomTypen[i] instanceof Long)
                         DATA[i].add(new Long(-1));          //displayed as "" by cellrenderer
                    else
                         DATA[i].add(kolomTypen[i].getClass().newInstance());          //nieuw object aanmaken van het type dat gespecificeerd is, Integers en Booleans moet een waarde meegegeven worden
               keep.add(new Boolean(true));
               changed.add(new Boolean(false));
               emptyLineIndex++;
          catch(Exception e)
               e.printStackTrace();
     public void tableChanged(TableModelEvent e)
          if(e.getFirstRow()==emptyLineIndex)//alleen als de emptyLine ge?dit wordt een regel toevoegen
               boolean primesfilled=true;
               for(int i=0;i<primecolumns.length;i++)
                    if(getValueAt(emptyLineIndex,primecolumns[i]).equals(null) || getValueAt(emptyLineIndex,primecolumns[i]).toString().equals("")|| getValueAt(emptyLineIndex,primecolumns[i]).toString().equals("-1"))
                         primesfilled=false;
                         break;
               if(primesfilled)     //alleen als de primaire sleutel kolommen ingevuld zijn
                    addNewLine();
     * returns the Class type of the Objects representing the column type
     *@param c     the column nr
     public Class getColumnClass(int c)
          if(c==0)
               return new Boolean(true).getClass();
          else
               return kolomTypen[c-1].getClass();
     *@param rowIndex the index of the row
     *@param columnIndex     the index of the column
     *@return true if a cell is Editable,false otherwise (all cells are Editable)
     public boolean isCellEditable(int rowIndex, int columnIndex)
          return true;
     * returns the name of the column
     *@param column     the column index
     *@return a String containing the name of the column
     public String getColumnName(int column)
          if(column==0)
               return "";
          else
               return kolomNamen[column-1];
     *@return wheter or not 1 or rows is marked for deletion
     public boolean deletionNeeded()
          Boolean B;
          for(int i=0;i<emptyLineIndex;i++)
               B=(Boolean)keep.get(i);
               if(!B.booleanValue())
                    return true;
          return false;
     * Deletes all rows which are marked for deletion
     *@return the number of rows that have been deleted
     public int deleteMarkedRows()          // zou niets uit moeten maken of je eerst deleteMarkedRows() of isSavedToDB(true) aanroept
          int aantalRows=0;
          Boolean B;
          for(int i=0;i<emptyLineIndex;i++)
               B=(Boolean)keep.get(i);
               if(!B.booleanValue())
                    if(deleteRow(i))
                         aantalRows++;
                         i--;
          return aantalRows;
     * deletes a single row
     *@param row     the row index
     *@return     true if the row was deleted, false otherwise
     protected boolean deleteRow(int row)
          boolean result=false;
          if(row==emptyLineIndex)               // emptyline kan niet gedelete worden
               return result;
          try
               for(int j=0;j<DATA.length;j++)
                    DATA[j].remove(row);
               changed.remove(row);
               keep.remove(row);
               emptyLineIndex--;
               if(row < newRowsIndex)
                    newRowsIndex--;
               result=true;
          catch(Exception e)
               e.printStackTrace();
          return result;
     * returns if the row has changed or not
     *@param row          the row index
     *@return true if 1 or more cells in this row had their value changed or if 1 or more rows were added, false otherwise
     public boolean hasChanged(int row)
          Boolean B=(Boolean)changed.get(row);
          return B.booleanValue();
     * Methode waarmee men kan bepalen of 1 van de originele waarden ook veranderd is.
     * Het geeft dus niet aan of er ook nieuwe rijen zijn toegevoegd.
     public boolean hasChanged()
          Boolean B;
          for(int i=0;i<newRowsIndex;i++)
               B=(Boolean)changed.get(i);
               if(B.booleanValue())
                    return true;
          return false;
     * if true it sets all flags indicating a change to false, else nothing
     *@param saved     boolean indicating all changes are now to be considerd to be the original values, or not
     public void isSavedToDB(boolean saved)
          if(saved)
               for(int i=0; i<changed.size();i++)
                    changed.set(i,new Boolean(false));
               newRowsIndex=emptyLineIndex;
     * @return the row nr. at which newly added entrys begin, updated after isSavedToDB(true) is called
     public int getNewRowsIndex()
          return newRowsIndex;
     * allows the specification of certain columns that need to be filled in, if not a new row will not be made vissible
     *@param columns     an array containing the column indexes which must be set to a valid value
     public void setPrimeColumns(int[] columns)
          primecolumns=columns;
     * allows retrieval of the PrimeColumns
     *@return an arrayof int containing the column indexes
     public int[] getPrimeColumns()
          return primecolumns;
Ok some of the comments are in dutch go ahead an blame me :(
if you have any questions, just ask.
i also have a TableModel which can use automatic numbering
Oh numbers (currently only Integer and Long) are initiated wth a value of -1 if you want to display them as blank cells like i wanted to you modify a cellrenderer (or use mine)
Mr Mean

Setting row level field in table using jQuery

Hi,
I'm utilising the following to read and then set values in the same row within a report.
Re: Referencing a row level field value in an Interactive Report using jquery
Consider the following snippet
// read information eg
var row = $x_UpTill(this.triggeringElement, 'TR');
var dateCompleted = $('input[name="f03"]', row)[0];
console.log(dateCompleted.value);
// write information eg
var dateBooked = $('input[name="f02"]', row)[0];
//dateBooked.value = 'xyz'; // sets to xyz, as expected
dateBooked.value = return_date; // sets the actual code, not returning stringAll works as I'd expect except the last line. I have a js function returning a formatted string (Set Date With Javascript but in this case my field now contains the actual code definition, not the date string the function actually returns.
I'm thinking I'm just misunderstanding a simple concept for JavaScript here?
A simple workaround could be to create field P0_SYSDATE, calculated to TO_CHAR(SYSDATE,:F_DATE_FORMAT), then apply
dateBooked.value = $v('P0_SYSDATE');but I'm trying to improve my understanding of javascript/jQuery...
Cheers,
Scott

So are you saying that return_date is an actual javascript function that returns the formated string/date you want?
If so, then I think you simply need parenthesis to run the function:
dateBooked.value = return_date();Or... am I missing something here?
Thanks
-Jorge

How to add image in jtable header using 'Default table model'

Hi,
I created a table using "DefaultTableModel".
im able to add images in table cells but not in 'table header'.
i added inages in table by overriding "getColumnClass" of the DefaultTableModel.
But what to do for headers?
please help.
Thanks in advance.

The 'Java 5 tutorial' is really an outstanding oneI should note the the current tutorial on the Sun website has bee updated for Java 6. It contains updates to reflect the changes made in JDK6. Once of the changes is that sorting of tables is now supported directly which is why I needed to give you the link to the old tutorial.
http://java.sun.com/docs/books/tutorial/uiswing/TOC.html

Table model and default model

Hi All,
can u tell me how to use table model or default table model. where i can references about it???
thanks for all

[http://java.sun.com/docs/books/tutorial/uiswing/components/table.html#data]

Copyig Data from a TABLE MODEL (TABLE) TO A FILE

Hi guys,
I wont to copy data from a Default Table Model to a File can someone write a pease of code that will do that for me.
DefaultTableModel model = new DefaultTableModel();
JTable table;
public basic()
          super();
              model.addColumn("Full Name");
              model.addColumn("House No");
              model.addColumn("Address");
              model.addColumn("Town/County");
              model.addColumn("Postcode");
              model.addColumn("Telephone Number");
              model.addColumn("Email Address");
              String[] socrates = { "Example", "33", "York RD", "Poole", "BH18 9RE", "01202776655", "[email protected]" };
              model.addRow(socrates);
          /**This is the main setup for the Address Book
          *This has the main settings for the size, title
          *And main features of the Address book.
          setDefaultCloseOperation(EXIT_ON_CLOSE);
          this.setSize(new Dimension(800, 600));
          this.setTitle("Large Print Address Book");
          this.setLayout(new FlowLayout ());
          //Main Application Parts
          JLabel welcome = new JLabel("Welcome to Thomas's Address Book v2.0.1");
          welcome.setFont(arial20);
          this.add(welcome);
          //Menu Bar
          JMenuBar mb = new JMenuBar();
          this.setJMenuBar(mb);
          //Table
          table = new JTable(model);
          this.add(table);
          JMenu fm = new JMenu("File");
          fm.setFont(arial20);
          mb.add(fm);
          //Menu Items
          JMenuItem Add = new JMenuItem("Add Record");
          Add.setFont(arial20);
          Add.addActionListener(new ActionListener()
               public void actionPerformed(ActionEvent e)
                    addw a = new addw();
          fm.add(Add);
          //Import from a file
          JMenuItem inp = new JMenuItem("Import Records");
          inp.setFont(arial20);
          inp.addActionListener(new ActionListener()
               public void actionPerformed(ActionEvent e)
                    //Opens Import Window.
                    inportw i = new inportw();
          fm.add(inp);
          JMenuItem quit = new JMenuItem("Exit");
          quit.setFont(arial20);
          fm.add(quit);
          quit.addActionListener(this);
class inportw extends JFrame
          //*Add Window Properties and Settings
          public inportw ()
               this.setSize(new Dimension(400, 150));
               this.setTitle("Inport Records");
               this.setLayout(new FlowLayout ());
               this.setVisible(true);
               //Nmae
               JLabel error_note = new JLabel("Error Here - Need to make table final!?");
               error_note.setFont(arial20);
               this.add(error_note);
               //Add Button
               JButton binport = new JButton("Inport");
               binport.addActionListener(new ActionListener()
                    public void actionPerformed(ActionEvent e)
                         ArrayList data = new ArrayList();
               this.add(binport);
     public void actionPerformed(ActionEvent e)
          System.out.println("Application Exit");
          System.exit(0);
     public static void main(String[] args)
          basic b = new basic();
          The information from the atable needs to go into a .txt file with each row on a new line. It also needs to be in the inport/export window that is in a class on its own when someone clicks export.
A complete peace of code would be helpfull that would do this for me. Thankyou guys.

Rite then,
In answer to both post yes i have done my own homework if thats what you wont to call it.
And to the second post yes i have put in a File to export to. the code has not be pasted on my origanal post.
//Export Button - Export Window
               JButton bexport = new JButton("Export (BUAB)");
               bexport.addActionListener(new ActionListener()
                    public void actionPerformed(ActionEvent e)
                         System.out.println("Export Pressed ");
                         try
                             FileWriter file = new FileWriter("AddressData.txt");
                            BufferedWriter out = new BufferedWriter(file);
                             out.write("AddressBook data File");
                            out.close();
                         catch (Exception ei)
                         System.err.println("Error: " + ei.getMessage());
               this.add(bexport);This is the export button,
I think the code for the table model should be something like this:
I wont to do something like this
model.getModel().getValueAt(0, 0);
Arrylist data = new arrylist();
try
                             FileWriter ffile = new FileWriter("AddressData.txt");
                            BufferedWriter out = new BufferedWriter(file);
                             out.write(data);
                            out.close();
                         catch (Exception ei)
                         System.err.println("Error: " + ei.getMessage());
                             }          Im not 100% sure how to get the information from the model into the arrylist, though a loop.
If there is a section of a webpage that may help could someone please post it for me.
Unfortunatly for me Im visualy impaired and find some of this hard. I learn though looking at examples and creating my own programs that do something similar.
If no one wonts to help then that fine with me !

Table & Models

hi all
i have a list of doubts
im designing an appln which displays a JTable , the data for the table is got from the database server, im using the Abstracttable model
i went for abstract table model since in my application the contents of the table very frequently , so i can handle it using the
firetabledatachanged or some fire functions
1)my doubt is where and when we have to use the abstracttable model and when we have to go for default table model
2) Now im keeping a button in my application if i press that ,a new row
have to be added at the end of that table , how i can carry it on using abstract table model(i think ,In default table model we can do it using
addrow ( )or insert row())
thnks in advance
keon

Hi,
You can use DefaultTableModel in place of AbstractTableModel, coz the method fireDataChanged() which you need is present in DefaultTableModel also(inherited from AbstractTableModel , since it is its parent model), apart from that DefaultTableModel gives you convenience methods such as addRow(), insertRow(), removeRow(), which you can override to your convenience.
However the only constraint is that the DefaultTableModel uses a Vector of Vectors to hold its Model/Data, if you want a different datastructure to be used as underlying model then you should be careful enough to implement all the methods that you are going to call on that instance of DefaultTableModel, this is becuase all the default implementations of the methods of DefaultTableModel assume that the underlying datastructure is a Vector, so if you replace it with a Map or a List then you should provide appropriate implementation to all its methods that manipulate the underlying datastructure

How do i set the background of the table( not of cell / row / column).

How do i set the background of the table( not of cell / row / column).
What happens when i load the applet the table is blank and displays the background color is gray which we want to be white.
We tried using the setBackGround but it is not working maybe we are not using it properly. Any help would be gr8.
Thanks in advance.

I don't understand very well, but i guess that the background is gray when the table content's empty, isn't it?
When the table model is empty, the JTable doesn't paint, so its container displays its background (often gray).
In this case, what you must do is force the table to paint, even if the model is empty. So, you have to create your own table and override three methods :
public class MyTable extends JTable
//specify the preferred and minum size when empty
myPreferredWidth = 200;
myPreferredHeigth =200;
myMinimunWidth = ...;
myMinimunHeigth = ...;
public Dimension getPreferredSize()
if(getModel().getRowCount() < 1)
return new Dimension(myPreferredWidth, myPreferredHeigth);
else
return super.getPreferredSize();
public Dimension getMinimumSize()
if( getModel().getRowCount() > 0)
return new Dimension(myMinimunWidth, myMinimunHeigth);
else
return super.getMinimumSize();
protected void paintComponent(Graphics g)
if (getModel().getRowCount<1 && isOpaque()) { //paint background
g.setColor(Color.white);
g.fillRect(0, 0, getWidth(), getHeight());
else super.paintComponent(g);
}

How can I add rows to a JTable based on an Abstract Table Model?

I have done this ...
public class myui extends JPanel {
private AbstractTableModel jTable1Model;
blah blah
        jTable1Model = new AbstractTableModel() {
             String[] column = new String[]{"TID", "Name", "Address"};
             Vector<Vector<Object>> table = new Vector<Vector<Object>>();
             @Override
             public int getRowCount() {
                  return table.size();
             @Override
             public int getColumnCount() {
                  return column.length;
             @Override
             public String getColumnName(int col) {
                  return column[col];
             @Override
             public Object getValueAt(int row, int column) {
                  return table.get(row).get(column);
             @Override
             public void setValueAt(Object value, int row, int column) {
                  table.get(row).set(column, value);
                  fireTableCellUpdated(row, column);
             public void insertRow() {
                  Vector<Object> columns = new Vector<Object>();
                  columns.add(null);columns.add(null);columns.add(null);
                  table.add(columns);
                  fireTableRowsInserted(0, table.size());
blah blah
    public synchronized void ImportVisitorDataToJTable1(Object value, int row, int col) {
        jTable1Model.InsertRow(); <-----///// This line not being recognised as a valid member function call
     jTable1.setValueAt(value, row, col);
}I thought to insert a row I can define a function in the abstracttablemodel class and then instantiate the class and override or create new methods that I can use.
But after instantiating the class and overriding appropriately and adding the insertRow function, when I try to use it in ImportVisitorDataToJTable1 as seen above its not being recognized as a funtion of jTable1Model

1. respect naming conventions. Example: myui --> MyUI, ImportVisitorDataToJTable1 -->importVisitorDataToJTable1
2. convert Anonymous to Member: AbstractTableModel --> MyTableModel
3. row parameter makes no sense here as it depends on current row count:
    public synchronized void importVisitorDataToJTable1(Object value, int col) {
        int row = jTable1Model.getRowCount();4. here is a more adequate "fireTable.."-call for insertRow:
fireTableRowsInserted(table.size() - 1, table.size() - 1);
5. check if you can take advantage using DefaultTableModel as suggested by Maxideon.

ORA-30926: unable to get a stable set of rows in the source tables

hi,
I am loading data from source table to target table in a interface.
Using LKM incremental update .
In the merge rows step , getting the below error.
30926 : 99999 : java.sql.SQLException: ORA-30926: unable to get a stable set of rows in the source tables
please help as what should be done to resolve this.

Below is the query in the merge step...
when i run from SQL also, same error
SQL Error: ORA-30926: unable to get a stable set of rows in the source tables
30926. 00000 - "unable to get a stable set of rows in the source tables"
*Cause:    A stable set of rows could not be got because of large dml
activity or a non-deterministic where clause.
*Action:   Remove any non-deterministic where clauses and reissue the dml.
merge into     TFR.INVENTORIES T
using     TFR.I$_INVENTORIES S
on     (
          T.ORGANIZATION_ID=S.ORGANIZATION_ID
     and          T.ITEM_ID=S.ITEM_ID
when matched
then update set
     T.ITEM_TYPE     = S.ITEM_TYPE,
     T.SEGMENT1     = S.SEGMENT1,
     T.DESCRIPTION     = S.DESCRIPTION,
     T.LIST_PRICE_PER_UNIT     = S.LIST_PRICE_PER_UNIT,
     T.CREATED_BY     = S.CREATED_BY,
     T.DEFAULT_SO_SOURCE_TYPE     = S.DEFAULT_SO_SOURCE_TYPE,
     T.MATERIAL_BILLABLE_FLAG     = S.MATERIAL_BILLABLE_FLAG,
     T.LAST_UPDATED_BY     = S.LAST_UPDATED_BY
     ,T.ID     = TFR.INVENTORIES_SEQ.NEXTVAL,
     T.CREATION_DATE     = CURRENT_DATE,
     T.LAST_UPDATE_DATE     = CURRENT_DATE
when not matched
then insert
     T.ORGANIZATION_ID,
     T.ITEM_ID,
     T.ITEM_TYPE,
     T.SEGMENT1,
     T.DESCRIPTION,
     T.LIST_PRICE_PER_UNIT,
     T.CREATED_BY,
     T.DEFAULT_SO_SOURCE_TYPE,
     T.MATERIAL_BILLABLE_FLAG,
     T.LAST_UPDATED_BY
     ,T.ID,
     T.CREATION_DATE,
     T.LAST_UPDATE_DATE
values
     S.ORGANIZATION_ID,
     S.ITEM_ID,
     S.ITEM_TYPE,
     S.SEGMENT1,
     S.DESCRIPTION,
     S.LIST_PRICE_PER_UNIT,
     S.CREATED_BY,
     S.DEFAULT_SO_SOURCE_TYPE,
     S.MATERIAL_BILLABLE_FLAG,
     S.LAST_UPDATED_BY
     ,TFR.INVENTORIES_SEQ.NEXTVAL,
     CURRENT_DATE,
     CURRENT_DATE
     )

Setting row identifiers in default table model

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