/**
  * Open the given output file for writing or appending.
  *
  * @param theJobBackend Job Backend that is calling this method.
  * @param bfd Backend file descriptor.
  * @param file File.
  * @param append True to append, false to overwrite.
  * @exception IOException Thrown if an I/O error occurred.
  */
 public synchronized void outputFileOpen(
     JobBackendRef theJobBackend, int bfd, File file, boolean append) throws IOException {
   myFrontendFileWriter.outputFileOpen(theJobBackend, bfd, file, append);
 }