class TrimDao {

    public void clear() {
        try (Connection con = databaseManager.getDataSource().getConnection();
             PreparedStatement pstmt = con.prepareStatement("DELETE FROM trim");
        ) {
            pstmt.executeUpdate();
        } catch (SQLException e) {
            throw new RuntimeException(e.toString(), e);
        }
    }

    @Inject public  TrimDao(DatabaseManager databaseManager);

}