I'm using Netbeans 6.0.1. I've created a generic Java Desktop Application - Database Application from our library. Then added a little searchbar on the top. It looks like this:



My objectives is:

* The user will type something on the JTextField.
* Then the user will click the "SEARCH" button.
* Upon clicking, the query will be updated from: SELECT b FROM Books b
* Into: SELECT b FROM Books b WHERE b.title LIKE \"%" + jTextField1.getText () + "%\"
* Then call the "refresh" method (just like how the refresh booton work) to refresh the table


I tried:

    private void jButton1MouseReleased(java.awt.event.MouseEvent evt)
    {
        query = entityManager.createQuery ( "SELECT b FROM Books b WHERE b.title LIKE \"%" + jTextField1.getText () + "%\"" );
    refresh(); // This ain't working
    }

But nothing happens, I made some breakpoints and follow-through what is happening. And this is the code that is concerned with the "refresh" button:

    @Action
    public Task refresh ()
    {
        return new RefreshTask ( getApplication () );
    }

    private class RefreshTask extends Task
    {

        RefreshTask ( org.jdesktop.application.Application app )
        {
            super ( app );
        }

        @Override protected Void doInBackground ()
        {
            try
            {
                setProgress ( 0 , 0 , 4 );
                setMessage ( "Rolling back the current changes..." );
                setProgress ( 1 , 0 , 4 );
                entityManager.getTransaction ().rollback ();
                Thread.sleep ( 1000L ); // remove for real app
                setProgress ( 2 , 0 , 4 );

                setMessage ( "Starting a new transaction..." );
                entityManager.getTransaction ().begin ();
                Thread.sleep ( 500L ); // remove for real app
                setProgress ( 3 , 0 , 4 );

                setMessage ( "Fetching new data..." );
                java.util.Collection data = query.getResultList ();
                Thread.sleep ( 1300L ); // remove for real app
                setProgress ( 4 , 0 , 4 );

                Thread.sleep ( 150L ); // remove for real app
                list.clear ();
                list.addAll ( data );
            }
            catch ( InterruptedException ignore )
            {
            }
            return null;
        }

        @Override protected void finished ()
        {
            setMessage ( "Done." );
            setSaveNeeded ( false );
        }

    }

But simply calling "refresh();" would simply ends in the "super(app);" statment. I made some quick lookup how the "refresh" button was setup, and all I could see is this:

        refreshButton.setAction(actionMap.get("refresh")); // NOI18N
        refreshButton.setName("refreshButton"); // NOI18N

And I have no idea, how to call it. I'm really new to Java, I wish you could help me.