code: public DDF newDDF(DDFManager manager) throws DDFException {
      DDF ddf = this.newDDF(new Class<?>[] { DDFManager.class }, new Object[] { manager });
      ddf.getPersistenceHandler().setPersistable(false);
      return ddf;
    }
docs: Instantiates a new DDF of the type specified in ddf.ini as "DDF", using the constructor that requires only
  {@link DDFManager} as an argument.
  
  @param manager the {@link DDFManager} to assign
  @return the newly instantiated DDF
  @throws DDFException