Update Icon in JTable after user input

Question

I need to update an icon in JTable after the user digit a number in a JTextField.

Step-by-Step:

• The user clicks in a JTable row, and after that, opens a JFrame to edit its contents.
• There is a JTextField in that EditFrame where the user put a number from 0 to 100. That number will change the icon being displayed in my JTable row after the user close EditFrame.

I read the documentation here.I changed my aproach.I killed the renderer and created static Icons in my Meal class and created a method like that:

  public ImageIcon getIconByValue(int value){
    if(value==0)
        return ONESTAR;
    else
        return ...;     
}

and made some changes in my tablemodel(to store a ImageIcon):

  public Class<?> getColumnClass(int columnIndex) {  
    switch (columnIndex) {  
  case RATING:  
   return ImageIcon.class;    
...} 
    public void setValueAt(Object aValue, int rowIndex, int columnIndex) {  
       //..other cases....//  
        case RATING:            
                meal.getIconByValue((int)aValue);  
                break;
}
 public void setData(List<Meal> list){  
    this.meals.clear();  
     for(Meal m:list){  
       Meal meal=new Meal();  
    //...other sets..//  
      meal.getIconByValue(m.getRating());  
  }  
  this.meals.add(meal); 
 }

But my Rating space(where should show the stars), is totally blank. Note: I read other topics too, but none of the helps how to change icons OnTheFly in a JTable.

Answer 1

It was more simple than i expected.I loaded the images in my bean class like that:

   private ImageIcon fivestars=new ImageIcon(getClass().getResource("/cr/hmp/gui/IMG/5star.png"));  

Made my model to return an icon class in my getColumnClass:

   case RATING:
        return ImageIcon.class;

In my getValueAt i made:

 return meal.getIconByValue( meal.getRating() );

And now updates the row after i close my EditFrame without any problem.