elapsedTimeColumn.setCellFactory(new Callback<TableColumn<DocumentEntry, Integer>, TableCell<DocumentEntry, Integer>>() {
@Override
public TableCell<DocumentEntry, Integer> call(TableColumn<DocumentEntry, Integer> param) {
return new TableCell<DocumentEntry, Integer>() {
@Override
public void updateItem(final Integer item, final boolean empty) {
if (item != null) {
setText(format(item));
}
}
};