JTable: Howto: Row color depending on value

Question

Hi all
I would like to write a cell renderer that changes the background color of a row (or indivicual cells) depending on the value in one of the table columns. For example, if the value in column 'recursive' of a given row is 'true' then make the row (cell) backgroundd grey. if 'false' make white.
I ve been able to write a simple cell renderer:
public class colorTableCellRenderer extends DefaultTableCellRenderer
java.awt.Color recursiveBG = new java.awt.Color(240, 240,240);
public colorTableCellRenderer()
super();
public void setValue(Object value)
String text = (String)value;
this.setBackground(recursiveBG);
this.setText(text);
But i am lost on how to actually check the value of the other column so I can determine which color to choose.
Help is greately appreciated.
Cheers,
michael

Answer 1

Hi Laszlo
Ok, I think this needs an explanation. Here is what I want to do:
1. Depending on the value of column 0 compared to an external value (referenced), I want to mark a row by setting the background of the row to recursiveBG. All others should have a white background.
        if(selectedPerson.equals(sourceID)) // row is not recursive
          this.setBackground(Color.white);
        else // row IS recursive
          this.setBackground(recursiveBG);
          }This should just set the background color of the cell. If I select the row, the 'normal' behaviour should mark the row blue (or whatever is standard). Your counting is right, these states should be accomodated for.
Current full code is below:
public class colorTableCellRenderer extends DefaultTableCellRenderer
  java.awt.Color recursiveBG = new java.awt.Color(240, 240,240);
  int recursiveColumn = 4;
  String recursiveID = null;
  Connect connectRef = null;
  public colorTableCellRenderer(Connect connectRef)
    super();
    this.connectRef = connectRef;
  public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column)
        java.awt.Color recursiveColor = new java.awt.Color(240,240,240);
        String myVal = (String)value;
        this.setText(myVal);
        recursiveID = (String)table.getValueAt(row, recursiveColumn);
        String selectedPerson = connectRef.getSelectedPersonPID();
        String sourceID = (String)table.getValueAt(row, 6);
        if(selectedPerson.equals(sourceID)) // row is not recursive
          this.setBackground(Color.white);
        else // row IS recursive
          this.setBackground(recursiveBG);
          return this;
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