Infinite calls to rowUpdated()

Question

Hi,
I have created a table binding using a view object (say VO). There is a listener on that view object(VO) and in rowUpdated( ) method I called the executeQuery() of the view object(VO).
After I update any value in the table and press enter, it goes into infinite loop.
Following is the sample java client file --
package pro;
import java.awt.*;
import javax.swing.*;
import javax.swing.event.*;
import oracle.jbo.*;
import oracle.jbo.client.*;
import oracle.jbo.uicli.binding.*;
import oracle.jbo.uicli.jui.*;
public class Client extends JFrame
        private BorderLayout _mainLayout = new BorderLayout();
        private JPanel _panelCenter = new JPanel();
        private JUPanelBinding _panelBinding;
        private static String V_EMP = "VEmp";
        private ViewObject _vEmp = null;
        private JTable _table = new JTable();
        private String[] EMP_ATTRIBUTES = {"Empno", "Ename", "Job"};
        public Client()
                try
                        jbInit();
                } catch (Exception e)
                        e.printStackTrace();
        private void jbInit() throws Exception
                this.setSize(350, 210);
                this.setBounds( new Rectangle(100, 80, 400, 250));
                this.setTitle( "Frame Title" );
                ApplicationModule appModule =
                Configuration.createRootApplicationModule(
                "pro.AM12414", "AM12414Local");
                JUApplication app = new JUApplication(appModule);
                _panelBinding = new JUPanelBinding(app.getName(), null);
                _panelBinding.setApplication(app);
                _panelCenter.setLayout(_mainLayout);
                customJbInit();
                this.getContentPane().add("Center",_panelCenter);
                _panelBinding.executeIfNeeded();
        private void customJbInit()
                _vEmp = _panelBinding.getDataControl().getApplicationModule().findViewObject(V_EMP);
                _table.setModel(JUTableBinding.createAttributeListBinding(_panelBinding, _table, V_EMP, null, V_EMP + "IterBinding", EMP_ATTRIBUTES));
                JUIteratorBinding bankMutationIterBinding = _panelBinding.getRowIterBinding(V_EMP, null,V_EMP+"IterBinding");
                bankMutationIterBinding.getRowSetIterator().addListener(new EmpRowSetListener());
                _panelCenter.add(_table);
        public static void main(String[] args)
                Client frame = new Client();
                frame.addWindowListener(
                        new WindowAdapter()
                                public void windowClosing(WindowEvent evnt)
                                        System.exit(0);
                frame.setSize(new Dimension(400, 280));
                frame.pack();
                frame.setVisible(true);
        private class EmpRowSetListener implements RowSetListener {
                public void navigated(NavigationEvent e) {}
                public void rowInserted(InsertEvent e) {}
                public void rowDeleted(DeleteEvent e) {}
                public void rowUpdated(UpdateEvent e) {
                        _vEmp.executeQuery();
                public void rangeRefreshed(RangeRefreshEvent e) {}
                public void rangeScrolled(ScrollEvent e){}
}I think after calling the executeQuery() method of a view object, it should not invoke rowUpdated( ) method as the row does not get updated just by calling the executeQuery().
Can anyone please verify this?
Thanks.

Answer 1

Hi Frank,
This was just a prototype for reproducing the issue :)
The actual reason behind invoking the executeQuery() is --
We are updating the database table (which is underlying the VO) through database procedures in the rowUpdated() and to reflect those changes back again in the view object (VO) we need to call executeQuery().
You can consider the rowUpdated() method as follows:
public void rowUpdated(UpdateEvent e)
  // Call the database procedure
  dbProc.updateTable(); 
  _vEmp.executeQuery();
}Thanks.