Java/PDF RTF/Table Event

TableEvents: tableLayout

import java.io.FileOutputStream;
import com.lowagie.text.Document;
import com.lowagie.text.PageSize;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfPTable;
import com.lowagie.text.pdf.PdfPTableEvent;
import com.lowagie.text.pdf.PdfWriter;
public class TableEvents1PDF {
  public static void main(String[] args) {
    Document document = new Document(PageSize.A4, 50, 50, 50, 50);
    try {
      PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("TableEvents1PDF.pdf"));
      document.open();
      PdfPTable table = new PdfPTable(1);
      table.addCell("a");
      TableEvents1PDF event = new TableEvents1PDF();
      table.setTableEvent(new MyTableEvent());
      document.add(table);
    } catch (Exception de) {
      de.printStackTrace();
    }
    document.close();
  }
}
class MyTableEvent implements PdfPTableEvent {
  public void tableLayout(PdfPTable table, float[][] width, float[] heights, int headerRows,
      int rowStart, PdfContentByte[] canvases) {
    System.out.println("table layout called");
  }
}