code: public boolean setOriginator(String originator) throws LockingException {
                  Validate.notNull(originator);
                  Validate.notEmpty(originator);
  
                  if (isFieldLocked(EntryField.ORIGINATOR)) {
                          if (!this.originator.equals(originator)) {
                                  throw new LockingException(EntryField.ORIGINATOR);
                          }
                          return false;
                  } else {
                          this.originator = originator;
                          return true;
                  }
          }
docs: Sets the originator of the log entry ({@link #originator}).
  
  @param originator Originator to set.
  @throws ParameterException if the given value is <code>null</code>.
  @throws LockingException if the originator field is locked <br>and
  the given value differs from the actual value of {@link #originator}.
  @return <code>true</code> if {@link #originator} was modified;<br>
  <code>false</code> otherwise.